After market cooler for the ATI 5850

[trt740]

will any fit?

[zanzabar]

the 58xx have standard spacing

[rmorse27]

I have the 5870 and I can tell you for sure that the 4 holes around gpu are the same as a 4890 if that helps. Looks like a aftermarket cooler that uses the 4 holes around gpu will work.

[trt740]

besides the GPU and ram what areas need heatsinks

http://img.techpowerup.org/091006/5850.jpg

[Sgt.McRuff]

It would be best to use the stock plate that came with 5850.
http://www.techpowerup.com/reviews/HIS/HD_5850/images/cooler2.jpg
You can take out the GPU cooler and maybe fit after market cooler there.

The stock plate would cool memory and power parts.
But if you need a visual of the other parts, in-case you cant use stock plate
http://i380.photobucket.com/albums/oo248/SgtMcRuff/cooling.jpg

Source of pics: tech power up :up:

[trt740]

It would be best to use the stock plate that came with 5850.
http://www.techpowerup.com/reviews/HIS/HD_5850/images/cooler2.jpg
You can take out the GPU cooler and maybe fit after market cooler there.

The stock plate would cool memory and power parts.
But if you need a visual of the other parts, in-case you cant use stock plate
http://i380.photobucket.com/albums/oo248/SgtMcRuff/cooling.jpg

Source of pics: tech power up :up:


looks like most of the rear of the card is cooled by air correct? So as long as it gets air it should be fine? The mount holes are the same as the 4800 series or so I'm told.

[Sgt.McRuff]

They need heat sinks, you can see on the stock cooler were it makes contact (white thermal pads)

Also this is a pic of 4870 but shows the just the stock plate on the card.
http://img99.imageshack.us/i/67257435dz4.jpg/#q=4870%20stock%20plate
I know the standard holes around the gpu are same as 4000's

[trt740]

They need heat sinks, you can see on the stock cooler were it makes contact (white thermal pads)

Also this is a pic of 4870 but shows the just the stock plate on the card.
http://img99.imageshack.us/i/67257435dz4.jpg/#q=4870%20stock%20plate
I know the standard holes around the gpu are same as 4000's

it looks like only the rear voltage regulators are touched by the thermal pads and the larger ones are cooled by the stock fan.

[Sgt.McRuff]

Correct.
Its not needed to have heat sink on the bigger ones, but they do get quite warm on my 4890, so I put memory heat sinks on em.

I say go for keeping stock plate and aftermarket cooler for the gpu that you like:up:

[Theorw]

I think my spare MUSASHI will fit on my 5850 very well and do a decent job keeping the temps down!
Dont u think?
Plus it has numerous holes for mounting on several spaced holes!So i think it will be compatible...


it looks like only the rear voltage regulators are touched by the thermal pads and the larger ones are cooled by the stock fan.

I think so too.They fit in the gap where the stock cooler suck air and they get cooled by that mooving air...

[trt740]

Correct.
Its not needed to have heat sink on the bigger ones, but they do get quite warm on my 4890, so I put memory heat sinks on em.

I say go for keeping stock plate and aftermarket cooler for the gpu that you like:up:


I think my spare MUSASHI will fit on my 5850 very well and do a decent job keeping the temps down!
Dont u think?
Plus it has numerous holes for mounting on several spaced holes!So i think it will be compatible...



I think so too.They fit in the gap where the stock cooler suck air and they get cooled by that mooving air...

Try and see and get back to us with some photos. Here is what I'm gonna try. From what I read the PCB on the 5850 is almost the exact size of the 4870.
http://www.arctic-cooling.com/catalog/product_info.php?cPath=2_&mID=101

[flopper]

must be the same, I am running mcw50 waterblock on 5850, its old as fossil.

[trt740]

must be the same, I am running mcw50 waterblock on 5850, its old as fossil.

thx flopper and thx to all who posted so far!!!! If it works post a photo of it here and post your temps.

[rmorse27]

If you are looking for that Artic cooler check out link below they have a great price.


http://www.ewiz.com/detail.php?p=FAN-TURBO&c=fr&pid=e3d10f72c923e97c9b417f973f20090d5b60fac26a7118 48206ef521888d7396

[Sgt.McRuff]

Looks like it might fit pretty well with stock plate

Edit:
look a pic
http://image.dhgate.com/upload/200811/81/402880840c23a8fb010c3cf7bb375b0f/productimg1227767637772.jpg

[Theorw]

Try and see and get back to us with some photos. Here is what I'm gonna try. From what I read the PCB on the 5850 is almost the exact size of the 4870.
http://www.arctic-cooling.com/catalog/product_info.php?cPath=2_&mID=101

Dunno pal about this AC...
I f i recall correctly they used to have soem problems with the heatpipe touching the memory heatsink and therefor u had to remove it in order for the AC to fit..
I was really happy with the compatibility and the performance of my MUSASHI.I had 2 of them in both my previous 4850s!

When i get my 5850(hopefully next week,stupid retailers here...)
i ll post any pics but be sure it will fit cos of the many holes that exist on the backplate:up::up:

EDIT:Just daw the above post where the AC has no problem.Well u have to use lowprofile heatsinks for it to work or else u ll might have problems!

[trt740]

I will let you know I might takes wolfs idea and use the stock plate if the heat sinks are a issue but I have some low profile ram heat sinks I am going to try.

[Theorw]

I will let you know I might takes wolfs idea and use the stock plate if the heat sinks are a issue but I have some low profile ram heat sinks I am going to try.

Yeah i was wondering about doing the same too.
It worked for the 4870 and MUSAHSI in particular,maybe for other coolers too!
The question is can the stock plate be removed and work alone without issues??

[Origin_Unknown]

im guessing the thermalright hr-03 will fit then?
i want to get a 5850 but i want a new cooler for it

[STaRGaZeR]

Guys, do you know for sure if the 5850 has something like the red plate the 4800's have?

Sgt.McRuff posted a photo of the 4870: http://img99.imageshack.us/i/67257435dz4.jpg/#q=4870%20stock%20plate

This plate is freaking useful for watercooling. I know the 5870 doesn't have it, the cooler is a block as long as the card.

[Sgt.McRuff]

Guys, do you know for sure if the 5850 has something like the red plate the 4800's have?

Sgt.McRuff posted a photo of the 4870: http://img99.imageshack.us/i/67257435dz4.jpg/#q=4870%20stock%20plate

This plate is freaking useful for watercooling. I know the 5870 doesn't have it, the cooler is a block as long as the card.

http://www.pcgameshardware.com/aid,696250/Radeon-HD-5850-reviewed-The-DirectX-11-bargain/Reviews/?page=2

In till full blocks are out I plan on using 5850 in same setup as my 4890 :) Swiftech mcw60-r2 + stock plate.

[STaRGaZeR]

Hell yeah. HD5850 incoming, I'm going to use the same config as you: stock plate + MCW60-R2 :D

I think ATI should never abandon this kind of setup, is nice for everyone: people with stock coolers won't notice a difference and people with aftermarket cooling, air or water, can use it like we do. Individual memory and mosfet heatsinks are expensive and a pain in the ass.

[trt740]

it's near silent. My temps drop around 30 degrees from the stock cooler at it's default max 33 percent speed setting under load. I haven't see over 55c with my card over clocked to 850/1250, down from max temps of 83c while benching and gaming.The only mods I had to do was change one heatsink to a smaller thermalright heatsink. The included one was a tiny bit too big hitting a heat pipe. Also the DVI imputs back side of the video card just barely leans againts the back of the Twin Turbo heatsink making the mounting holes slightly off but it still fits , and when I mean slightly off I mean a micro millimeter( and still usable). I didn't bend the Accelero's fins but you could bend the corner a fraction /a hair, but it does fit just the way it is and covers the gpu perfectly. The mentioned modded areas are in red. I will post some pictures later. Also the fans plug fits in the boards fan reciever and is controlled with software no problem. Also the included vrm heat sinks work perfect on this video card and almost look designed for them.

Oh almost forgot the stock heat sink plate won't work if you wanted to use it for water cooling looks like two separate pieces. The plate is plastic and just hold the fan heat sink.

http://img.techpowerup.org/091010/5850288.jpg

[Theorw]

Nice work pal!!!
Still waiting for stock here...
What did u do with the VRMs?Did u put anything on them?

[trt740]

Nice work pal!!!
Still waiting for stock here...
What did u do with the VRMs?Did u put anything on them?

Yes I put the included VRM Arctic cooler heat sinks on them and they fit perfectly almost like they were made for them. They are stepped shaped and fit great.

[trt740]

my wife has my good camera and I will take more later
http://img.techpowerup.org/091010/PIC-0095.jpg
http://img.techpowerup.org/091010/PIC-0090.jpg

http://img.techpowerup.org/091010/PIC-0091.jpg


Running occt gpu test, full screen, the card maxes at 64c. I think thats pretty darn good considering that the stock cooler, which does a decent job, would sound like a jet engine to get these temps. I also found that plugging the 12v cord into a power cord makes the fan run at higher rpms and does even a better job but is still near silent. Also anyone who says these cards run cool is crazy the sotck cooler is just made decent and hits the target 80c or lower marke easily , but these card run hot even at 40nm. I just didn't like 77c every time I played a game. I also didn't like that past 33percent the fan got crazy loud on the stock cooler. However, just so we are clear a Dual Orb or some crap like that would be blazing hot on this gpu. Heck even this Accelero has it's hands full but does a good job. Don't assume that because it's 40nm it's cool running it's not.

[Sgt.McRuff]

Oh almost forgot the stock heat sink plate won't work if you wanted to use it for water cooling looks like two separate pieces. The plate is plastic and just hold the fan heat sink.

:confused::confused::confused::confused::confused: + ?????

Your saying the stock metal plate that holds the fan+ plastic cover is plastic?

I just noticed that 1 pat of stock metal plate would run into trouble, but my question is did you try to install Accelero with metal plate on?

Also what are your vrm temps and what program are you using to test temps?

[trt740]

:confused::confused::confused::confused::confused: + ?????

Your saying the stock metal plate that holds the fan+ plastic cover is plastic?

I just noticed that 1 pat of stock metal plate would run into trouble, but my question is did you try to install Accelero with metal plate on?

Also what are your vrm temps and what program are you using to test temps?

GPUZs and Gpus two and three sensors read 65c to 68c under max load and I believe those are the voltage regulators . I didn't check what they were with the stock cooler, so could you run a test for me with yours using occt gpu test full screen and see what yours are. My clocks were 850/1250 at default voltage. Also the stock plate is made of two pieces and the main plate would not transfer heat well at all because it needs the stock copper heat sink (a separate piece) that runs the length of the card. Also I'm not sure it's plastic but whatever it is, is not very strong and doesn't look like it would transfer heat well at all.

[trt740]

well after about 65 minutes of occt the heat does start to build and my card hits 70c but thats still very good. I cannot believe how hot the back of this card gets with occt maxing the gpu out try it and see. OCCT GPU test causes more heat then Furmark on my card. Still you card will never see anything near what these programs put out.
__________________

[deaffob]

@trt740 Hey I have the twin turbo too but I had to put the stock cooler back on because I didn't have extra heat sinks. You have the ones that are almost perfect. Can you tell me what heat sinks are they? I found some heat sinks on newegg but I don't know if I should get those cause I don't know if they will fit! cool job on your cooler :)

[trt740]

@trt740 Hey I have the twin turbo too but I had to put the stock cooler back on because I didn't have extra heat sinks. You have the ones that are almost perfect. Can you tell me what heat sinks are they? I found some heat sinks on newegg but I don't know if I should get those cause I don't know if they will fit! cool job on your cooler :)

I really only used 3 thermalright heatsinks one on the first ram chip and two on the large VRM controller and I did use a single small enzotech on the first choke near the fron't of the card.

One of these http://www.newegg.com/Product/Product.aspx?Item=N82E16835708011 and 3 of smaller ones of these http://www.sidewindercomputers.com/thgtx28vrsi.html Oh almost forgot I did use some small thermaltake VRM heatsinks as well that I had laying around. But only the single Thermalright heat sink on the first ram chip was needed. The rest I added because I had them but the stock cooler uses just air to cool those components so you don't need them.

[ChinStrap]

mounting holes for 5850 same as 4890/4870?

[trt740]

mounting holes for 5850 same as 4890/4870?

yes and during gaming this cooler works great as long as you have good air flow you will love this bad boy.

[deaffob]

What did you use to get thost heatsinks to stick? Im probably gonna use arctic silver alumina adhesive.

[trt740]

What did you use to get thost heatsinks to stick? Im probably gonna use arctic silver alumina adhesive.

Well the ram chips and vrms chips are not slimly at all the thermal pads do not use a slimly film so they stuck with the factory glue no problem. I did use an eraser and alcohol to make sure they were totally clean.

[deaffob]

hmm the problem is that my twin turbo has been used for like a year now on my 4850 so it doesn't have that stickyness anymore :D Btw I just ordered thermalright VRM heatsinks. I assume that these come with factory glue applied on them?

[Theorw]

@TRT740
Great job mate but u missed some photos w/o the cooler,just the heztsinks installed so we can have an idea of what to cool...Post some with the cooler removed when u can!

[deaffob]

@TRT740
Great job mate but u missed some photos w/o the cooler,just the heztsinks installed so we can have an idea of what to cool...Post some with the cooler removed when u can!

actually it's quite easy if you bought a 5800 and disassemble it, you would see where the thermal tapes are.

[Theorw]

actually it's quite easy if you bought a 5800 and disassemble it, you would see where the thermal tapes are.

U are partly right mate...
From my experience in my previous 4850 crossfire setup,both cards needed extra cooling on the VMEM area but the stock cooler left it naked...
An after OCing memory and core the additional hetasinks that i put there got REALLY HOT!!!
Thats why i am asking for photos.To see if he found useful some extra cooling that didnt exist!
U get me?

[affiliate13]

This is what i did for the 4870:
http://www.clunk.org.uk/forums/user-reviews/8855-thermalright-hr03-gt-ati-hd-4870-a.html

If the hole spacings are the same then it should still be a sound option, i plan to try it again with a 5870 when prices fall back a little.

[trt740]

@TRT740
Great job mate but u missed some photos w/o the cooler,just the heztsinks installed so we can have an idea of what to cool...Post some with the cooler removed when u can!


Read the begining of the thread we discussed where the cooling needs to go and there are pictures. Post 5 should help you.


hmm the problem is that my twin turbo has been used for like a year now on my 4850 so it doesn't have that stickyness anymore :D Btw I just ordered thermalright VRM heatsinks. I assume that these come with factory glue applied on them?

Thermalright heatsinks do in fact come with thermal glue on them. Use AS5 adhesive to use your old ones as well.


Here is an update on the coolers performance on my 5850
http://img.techpowerup.org/091011/furmark_000000.jpg


clocks set to 850/1250 voltage again bumped to 1.162v and the fans are near silent.

[Theorw]

Read the begining of the thread we discussed where the cooling needs to go and there are pictures. Post 5 should help you.

Well i saw the photos but u missed my point...
I think that in the vga s there are components that manufacturers dont cool as they decide they can handle the stock heat...
But when u OC its different.And i say that according to my previous experience on my 4850s where the MEM regulators needed cooling when OCed while @stock it wasnt necessary.In the 5850 i would put heatsinks in the spots i marked yellow and MAYBE on the green one too and i d check by touch after benching if they get hot or not!


http://img23.imageshack.us/img23/3779/coolingy.jpg (http://img23.imageshack.us/my.php?image=coolingy.jpg)

[trt740]

Well i saw the photos but u missed my point...
I think that in the vga s there are components that manufacturers dont cool as they decide they can handle the stock heat...
But when u OC its different.And i say that according to my previous experience on my 4850s where the MEM regulators needed cooling when OCed while @stock it wasnt necessary.In the 5850 i would put heatsinks in the spots i marked yellow and MAYBE on the green one too and i d check by touch after benching if they get hot or not!


http://img23.imageshack.us/img23/3779/coolingy.jpg (http://img23.imageshack.us/my.php?image=coolingy.jpg)

I didn't cool any of that because it is open to the fans direct air flow unlike the stock cooler which didn't cool them at all, and I didn't miss your point. Also the entire card gets really hot touch the back of your current card under max load a touch test won't help you.

[deaffob]

Also in the upper left red box, you only have to cool the little one not the big one.

Hey trt740 what did you use to change the voltage?

[Theorw]

I didn't cool any of that because it is open to the fans direct air flow unlike the stock cooler which didn't cool them at all, and I didn't miss your point. Also the entire card gets really hot touch the back of your current card under max load a touch test won't help you.

Well ok!I believe its better to cool and to be a little overkill than not cool something u should have,right?
I hope this week stock will arrive and i l grab my 5850 as well:up:

[trt740]

Also in the upper left red box, you only have to cool the little one not the big one.

Hey trt740 what did you use to change the voltage?

amd gpu tool

[trt740]

I'm not sure this is a better cooler performance wise but it runs quieter and allows you to run the fan at 100 percent keeping the gpu cooler during normal use. However , under extreme over clocking and extended error testing they seem to perform similar. Again with the stock cooler being alot louder. This might be the only after market cooler I would use on this card. Some other coolers out there could not handle the heat. For example a dual orb would not do well.

[ann1985]

the 58xx have standard spacing

[trt740]

the 58xx have standard spacing

yes.

[Sgt.McRuff]

trt740 use amd gpu clock tool to monitor vrm temps. With furmark mine are getting to around 48c-51c at 1.175v 970c / 1300mem
Wish I got the temperatures for vrms with stock cooling.

stock plate
http://i380.photobucket.com/albums/oo248/SgtMcRuff/IMG_0057-1.jpg
in case no side fan
http://i380.photobucket.com/albums/oo248/SgtMcRuff/IMG_0061.jpg
in case side 120mm fan
http://i380.photobucket.com/albums/oo248/SgtMcRuff/IMG_0063.jpg
Sorry for crappy iphone pics.

[deaffob]

nice job Sgt.McRuff

[trt740]

trt740 use amd gpu clock tool to monitor vrm temps. With furmark mine are getting to around 48c-51c at 1.175v 970c / 1300mem
Wish I got the temperatures for vrms with stock cooling.

stock plate
http://i380.photobucket.com/albums/oo248/SgtMcRuff/IMG_0057-1.jpg
in case no side fan
http://i380.photobucket.com/albums/oo248/SgtMcRuff/IMG_0061.jpg
in case side 120mm fan
http://i380.photobucket.com/albums/oo248/SgtMcRuff/IMG_0063.jpg
Sorry for crappy iphone pics.

try it with this tool http://www.ocbase.com/perestroika_en/index.php?Download and tell me your temps

and which sensors are they in amd gpu tool

[Sgt.McRuff]

try it with this tool http://www.ocbase.com/perestroika_en/index.php?Download and tell me your temps

and which sensors are they in amd gpu tool

HIGH 60's. (room temp 76f)
also new gpu-z out 3.6 that tells vrm temps

[trt740]

HIGH 60's. (room temp 76f)
also new gpu-z out 3.6 that tells vrm temps

on air mines in the 80's under max load using occt which stress my system more than furmark, but we are talking air against water cooling. I wonder what it would be with the stock air cooler wish I would have thought to check. I wonder what acceptable.

[Sgt.McRuff]

Well my vrms are air and that is in high 60's. My core is only around 39-40c. (occt)
I have my vrms, in exact same setup as my 4890 and there about 12c cooler then 4890, which is good.

[ChinStrap]

vf1000 fits w/o modding

http://i28.photobucket.com/albums/c235/Snatch362/sidebyside.jpg
-
http://i28.photobucket.com/albums/c235/Snatch362/mounted.jpg

[Jamesrt2004]

this thread made me buy a 5850.. i can watercool it with stock plate =D

[mattlef]

This looks like great for us. Hopefully though, we'll see a bunch of coolers come out for the 5850, so we don't have to use the stock plate.
I wonder if that new xigmatek is gonna ship 5series ready, or if Thermalright is working on a cooling option as well.

[Theorw]

on air mines in the 80's under max load using occt which stress my system more than furmark, but we are talking air against water cooling. I wonder what it would be with the stock air cooler wish I would have thought to check. I wonder what acceptable.

Hey pal wont u mention about your marine choking on a peanut card?:rofl::rofl::rofl::rofl::rofl::rofl:

[trt740]

Hey pal wont u mention about your marine choking on a peanut card?:rofl::rofl::rofl::rofl::rofl::rofl:

I would but it was with the stock cooler on the card during stock testing and isn't relevant :rolleyes: to this topic. MY 5850 died during testing using the stock cooler and stock voltage using occts gpu test . I was going to show a comparison of the two but the results seem to speak for them selves.

[ChinStrap]

http://i28.photobucket.com/albums/c235/Snatch362/lilbetter.jpg

[trt740]

http://i28.photobucket.com/albums/c235/Snatch362/lilbetter.jpg

run occt and tell us the vrm temps.

[trt740]

Well my vrms are air and that is in high 60's. My core is only around 39-40c. (occt)
I have my vrms, in exact same setup as my 4890 and there about 12c cooler then 4890, which is good.

Yes they are but since water haul all the heat away and leaves none in the case and doesn't let the pcb radiate heat there is a difference. Plus my cooler cost 29.00 and your well is well over double. I do like the heat pipe over the voltage regulator I may give that stock cooler mod a try and put enzotech heat sinks on it. I'm not sure it will work on a 5870 but we will see. okay now I see the stock plate mod won't work on the 5870, different cooler all together.

[mattlef]

That heatsink looks fantastic..... I might just end up copying you :P

[Theorw]

Yes indeed itys a very beautiful combination!

[deaffob]

I just installed Accelero Twin Turbo on my 5870 with some extra heatsinks on Fase Ram. But my temps shoot up to 75 on gpu and average vddc phases hit 110 after heavy furmark. :(

[trt740]

I just installed Accelero Twin Turbo on my 5870 with some extra heatsinks on Fase Ram. But my temps shoot up to 75 on gpu and average vddc phases hit 110 after heavy furmark. :(

You need to turn the fan up to 100 percent, something is wrong there and make sure your not using amd gpu tool it disables the fan speed.


http://img.techpowerup.org/091011/furmark_000000.jpg

[zfactor]

the gfxchilla works also. fits great on the 5870 ill try to get some pics i got to get the camera back from the wife's sister arghhhh. im seeing 37-39 idle and furmark just a hair over 70.. not to bad imo

[mattlef]

Has anyone tried one of the Thermalright offerings?

[deaffob]

@trt740 I thought if I connect the Twin Turbo with 12v it is always 100% and I can't control the speed? Anyway I turned up to 100% and it's the same :( maybe it's because I live in California.

[trt740]

@trt740 I thought if I connect the Twin Turbo with 12v it is always 100% and I can't control the speed? Anyway I turned up to 100% and it's the same :( maybe it's because I live in California.

might be case flow take the side off and try

[Thrackan]

http://i28.photobucket.com/albums/c235/Snatch362/lilbetter.jpg

Thanks for sharing this! 1 question: Did you only have to use the 4 VRM heatsinks I see in your pic? Or are there more places to be heatsinked when using the VF1000?

Also, temps would be nice to hear:D

[Locke]

Does this look okay for temps and overclock on the 5850?
The GPU 2 temp seems a bit high.

thanks!

http://i151.photobucket.com/albums/s126/v--Locke--v/5850overclock.jpg

[Karam]

First post here

The scythe musachi is fully compatible with the HD5850.

But i wanted to keep the black plate for a beter cooling of the VRMs, so i modded the mussahi :D

Here is the pics :

http://img29.imageshack.us/img29/7303/p10201282.jpg
http://img2.imageshack.us/img2/8100/p1020142y.jpg
http://img33.imageshack.us/img33/2987/p1020155q.jpg
http://img194.imageshack.us/img194/9225/p1020163e.jpg

The result (musachi fanmate at 1/2 = silent) --> http://img10.imageshack.us/img10/3821/furmarkp.th.jpg (http://img10.imageshack.us/i/furmarkp.jpg/)
(stability test, post-processing, 1920*1200, msaa 8x,xtrem burning mode)

idle after bench (fanmate at 1/4 = very silent) : 34°
:up:

édit : more pics here link (http://picasaweb.google.fr/charles.foret/HD5850#)

[ChinStrap]

i have everything in a Antec Mini p180 now, w/ 1.2 vgpu via afterburner @ 900 core, 5850 loads in the middle 50*'s (c) while playing COD series (4 and 5)

i might be the drivers i'm using, but GPUz is acting up. i'm still looking for a fix on that. i added the sinks to the heatpipe on the digital PWMs for looks, i'm sure they help, but i think they look better then that ugly heatpipe that was on there.

/edit. i also have the vf1000 plugged into the case 1 fan header on my motherboard, fan profile set to silent. every once in a while it will ramp up in speed, but i don't know if hats from CPU load or GPU.

[SonDa5]

The stock cooler does a decent job but I'm sure other cooling methods that are superior can be done.

This is HD5850 at 1000/1200 100% load on furmark doing some tuning.

http://minidriven.com/GreenMachine/FurmarktestingHD5850.jpg

Any after market cooling mod should show some good improvements from what the stock cooler can do.

[Karam]

The stock cooler does a decent job but I'm sure other cooling methods that are superior can be done.

This is HD5850 at 1000/1200 100% load on furmark doing some tuning.

http://minidriven.com/GreenMachine/FurmarktestingHD5850.jpg

Any after market cooling mod should show some good improvements from what the stock cooler can do.

Sorry but, stock fan at 100% :down: , this is not "decent"

of course the stock fan is good, but when you O/C, it's very noisy

[SonDa5]

Sorry but, stock fan at 100% :down: , this is not "decent"

of course the stock fan is good, but when you O/C, it's very noisy


Just presented the numbers to see how the stock cooler works under load. The temps in my screen shot seem to be safe for o/c HD5850.
I agree the stock cooling is noisy.

[Sgt.McRuff]

Does this look okay for temps and overclock on the 5850?
The GPU 2 temp seems a bit high.

thanks!

*snip*

Either cooler is not making correct contact. Or the temp sensor isn't any good.

[Locke]

Either cooler is not making correct contact. Or the temp sensor isn't any good.

the waterblock prob isnt making good contact, if i tighten the block down too much the card warps and the MB doesnt post video.

thanks for the thought! I'm gonna mess with ti more when I get my i5 win 7 build up in a few weeks.

[SonDa5]

Here is stock cooling temps with fan cranked up 100% when idling no load. I think this will be hard to beat for standard heat sink and air cooling.


http://minidriven.com/GreenMachine/HD5850idletempsfanonehundredpercent.jpg

[ChinStrap]

Here is stock cooling temps with fan cranked up 100% when idling no load. I think this will be hard to beat for standard heat sink and air cooling.

http://minidriven.com/GreenMachine/HD5850idletempsfanonehundredpercent.jpg


So, you don’t mind that it sound like a Saturn V in your case/tech station?

[SonDa5]

So, you don’t mind that it sound like a Saturn V in your case/tech station?

:rofl:


It is loud but it does a good job of cooling.

I would much rather have quieter cooler but it has to do a better job at cooling as well.

[hawktulu]

Hi guys, I would like to know your opinion on how to cool OC asus 5850.
Im getting 5850 on january :( didnt preorder it coz i thought there would be relatively enough of this cards...mistakeeee :)
well I narrowed my choice of cooling from thermaltake ISGC v320 and accelero S1 rev 2 to accelero after I saw it can be fitted on card with some tweaking.
Im planning to OC to max (accelero + 2x120 noctua [S12 1200 ULNA,FLX on ULNA])

Well I would like to know your opinion what cooling would be better
1. heatspreader on + heat sink (acceleros' or thermalright) on VRMA + accelero
2. heat sink (acceleros' or thermalright) on RAM + VRMA + accelero

? what will be most efficient?

really thanks

[Blkout]

Water cooling is the way to go, much more efficient that air cooling.

[Boulard83]

Waiting my HD5850 and it thnin ill buy these : T-rad2 with a Vrm2

http://www.thermalright.com/new_a_page/product_images/vga_cooler/T-rad2_gtx/1-1.JPG

http://www.thermalright.com/new_a_page/product_images/vga_cooler/vrm-r1_r2/1-1.jpg

This is supposed to fit. And can be CFed

[Karam]

Waiting my HD5850 and it thnin ill buy these : T-rad2 with a Vrm2

http://www.thermalright.com/new_a_page/product_images/vga_cooler/T-rad2_gtx/1-1.JPG

http://www.thermalright.com/new_a_page/product_images/vga_cooler/vrm-r1_r2/1-1.jpg

This is supposed to fit. And can be CFed

the t-rad² fits the card well, but not the vrm1 and vrm2 w/o modding

http://www.thermalright.com/new_a_page/product_images/vga_cooler/vrm-r1_r2/dw-r2.JPG

the gap between the two holes is 81.3mm, on the hd5850 it's 84mm

[hawktulu]

Water cooling is the way to go, much more efficient that air cooling.

i hope you didnt reply on my question?

[Boulard83]

THX Karam !

Im not mattered by modding it ;)

[Blkout]

i hope you didnt reply on my question?

Yes I did, and you're welcome. Free advice. :up:

[hawktulu]

Yes I did, and you're welcome. Free advice. :up:

:down:

im asking which is better - back plate on or just heat sink on RAM and VRMA and you answer me with water cooling..

if i want to know which is better air or water I WOULD ASK..

[Blkout]

:down:

im asking which is better - back plate on or just heat sink on RAM and VRMA and you answer me with water cooling..

if i want to know which is better air or water I WOULD ASK..

If I thought an air cooled solution were worth mentioning, I would have. Hence, the recommendation to go water. You're welcome.

[boxrick]

http://i28.photobucket.com/albums/c235/Snatch362/lilbetter.jpg

I have just purchased 2 x 5850s and find them rather noisy so i want to stick some aftermarket coolers on to silence them. I have a few questions:

1)I have a VF1100 with the zalman heatsync pack on my old 8800GTX, would it be relatively simple to transfer it to one of my 5850s?

2)I presume once i fit the cooler the memory and other critical components will no longer be being cooled, what components are these and what should i do about it ?

3)Any other advice before i do this?

[boxrick]

No one have any advice?

[AAbenson]

boxrick : get an THERMALRIGHT T-Rad² ,get a big low rotation fan like an 120mm that spins at 1000 or even an 140 low-spinning fan like the new XIGMATEK XLF-F1453 and mount the fan on the cooler with some metal wire if its too big for the original clips,if you wanna play with it a bit you can even put 2x12mm on top .
its really easy done in 5 mins,i have a 14mm fan on my VGA cooler thats mounted with wire cause its too big for the original clips and besides it blows air directly to the RAM and VRMA so you dont have to worry about them.
if you stay up to 850mhz oc you can even lower the fan to 800rpm.
best thing is once you get a new gfx card in the future you just unmount this cooler and put it on the new.
...you just dont hear nothing from a good fan that spins at 800-1000rpm,completely silent.
i think i will never again use stock cooling on a gfx card.

[darckhart]

i thought the biggest problem was those stacked dvi connectors. gets in the way of the fins for most of these large heatsinks.

[boxrick]

Ok guys i did the mod, stuck a zalman VF1000 copper GPU sync on my 5850. Idle temps now at 36 degrees load on 55-57 ( with fan on low )

This is miles quieter than the stock cooler no modding required simply do the following:

1) Pull off stock cooler / heatsync and removal thermal gunk from GPU.
2) Take apart the stock cooler so you simply have the baseplate.
3) Reapply the black metal baseplate to the card without the shroud and the rest of the rubbish
4) Put some fresh decent thermal gunk on the GPU and install the VF1000
5) Enjoy :)

[vera]

Chinstrap @ in this picture what is the brand of vga cooler ?


http://i28.photobucket.com/albums/c235/Snatch362/lilbetter.jpg

[zanzabar]

thats a zalman gv1000
http://www.zalman.co.kr/ENG/product/Product_Read.asp?idx=283

[yenclas]

Ok guys i did the mod, stuck a zalman VF1000 copper GPU sync on my 5850. Idle temps now at 36 degrees load on 55-57 ( with fan on low )

This is miles quieter than the stock cooler no modding required simply do the following:

1) Pull off stock cooler / heatsync and removal thermal gunk from GPU.
2) Take apart the stock cooler so you simply have the baseplate.
3) Reapply the black metal baseplate to the card without the shroud and the rest of the rubbish
4) Put some fresh decent thermal gunk on the GPU and install the VF1000
5) Enjoy :)

VRM temps ?


I cannot find a decent cooler for 5850 (thinking in VRM temp)

[darckhart]

@boxrick did you use two vf1000 for your 2x5850? if so can you take a pic? i'm worried about having enough space between the two cards. also curious about the vrm temps.

[Garrett]

I'm curious as well, and what voltages and speeds do you run boxrick??

[boxrick]

here is the bad picture and you can barely see anything

http://www.boxrick.com/zalman.jpg
http://www.boxrick.com/temp.jpg

When i placed the 2 cards next to each other one of them got very hot and was unstable, so i used the top PCI-E slot in my motherboard and the long MSI crossfire cable to connect them, the standard ATI one wasnt long enough. This eliminated any temp problems.

http://www.boxrick.com/5850zal1.jpg
http://www.boxrick.com/5850zal2.jpg
http://www.boxrick.com/5850zal3.jpg
http://www.boxrick.com/5850zal4.jpg

Here are some temps from a single card before i installed the second, the second card barely added any temperature anyway.

Idle with fan and case fans on low (virtually silent)

http://www.boxrick.com/idle.jpg

With full load after running a 2560 x 1600 borderlands at high settings for 10 mins with overclocked GPU / CPU. GPU volts @ 1.25 ( increase from 1.085 stock). Fan speed on high.

http://www.boxrick.com/load.jpg


http://www.boxrick.com/zal01.jpg
http://www.boxrick.com/zal03.jpg
http://www.boxrick.com/zal04.jpg
http://www.boxrick.com/zal05.jpg
http://www.boxrick.com/zal06.jpg
http://www.boxrick.com/zal07.jpg

http://www.youtube.com/watch?v=6sXcoZj7fwU

[Kain665]

Huh... I use a pair of TTPs with stock plates and even though my core temps are similar, my VRM temps get up to the high 70s with only 1.2v...

[darckhart]

cool, so it does work with both of them, but might need to watch for temps. think i'll be getting them then =) thx boxrick!

[Garrett]

Thanks man, appreciate it :)
Good to see that you don't need to cut or bend any fins on the Zalman or whatever... just install and go :)

How is the noise anyway?

PS I really liked the YouTube vid, though you do need some extra practice with the game lol :p:

[yenclas]

Hello boxrick,

these VRM temps are great. But have you air flow direct to VRM ? I'm planning to buy an aftermarket cooler for this card and I'm seeing that all solutions have problems with VRM temps but you don't.

(sorry by my bad English)

[Garrett]

yenclas he uses the original backplate, that definitely helps :)

[yenclas]

yenclas he uses the original backplate, that definitely helps :)

Thanks Garrett.

Finally, VF1000 seems to be best choice for aftermarket cooler with this card. Is it true ?

[boxrick]

Thanks man, appreciate it :)
Good to see that you don't need to cut or bend any fins on the Zalman or whatever... just install and go :)

How is the noise anyway?

PS I really liked the YouTube vid, though you do need some extra practice with the game lol :p:

Noise is silent in low mode and fairly noisy when turned up, and that youtube vid was practically my first play whilst making sure the camera was working.

One thing i will note is that i would advise against installing 2 of these unless you have good airflow / or keeping them apart as i do.

To fit the second 5850 into my case i had to bend the second "foot" which is designed to go into the slot to secure it in, simply because my case was not expecting a gpu so high up. I believe this is just an issue with my case.

[boxrick]

May i ask, which of the above is the VRM temps and what is an "unsafe" level for my VRM, my recent "Idle" temps seem to have gone up a little bit due to ATI fiddling with the drivers for a much higher system idle speed (10.x(5) v2 i am currently using ) this has fixed the "flickering" issues many people are seeing using multiple monitors though.

[yenclas]

May i ask, which of the above is the VRM temps and what is an "unsafe" level for my VRM, my recent "Idle" temps seem to have gone up a little bit due to ATI fiddling with the drivers for a much higher system idle speed (10.x(5) v2 i am currently using ) this has fixed the "flickering" issues many people are seeing using multiple monitors though.

Hello boxrick,


Which temps have you with new drivers including idle and full load ? GPU and VRM temps please.

Thanks !

[darckhart]

@boxrick: vrm temp is VDDC Phase #x. under load, most of us see it 60-90, maybe higher. yours seem quite low comparatively, although in your screen, gpu load is only 39%.

im gonna have to get vf1000 because my two cards are gonna be squashed right next to each other since only pcie1 and 2 are x16.

[yenclas]

@boxrick: vrm temp is VDDC Phase #x. under load, most of us see it 60-90, maybe higher. yours seem quite low comparatively, although in your screen, gpu load is only 39%.

im gonna have to get vf1000 because my two cards are gonna be squashed right next to each other since only pcie1 and 2 are x16.

Yes. Can you boxrick see VRM temps at 100% gpu load ? With furmark ?

[Garrett]

VDDC temps are the VRM temps boxrick... unsafe is 120 and up if I'm not mistaking, I can't imagine that you'd get temps THAT high with the original stock plate in place anyway... and FurMark... I say screw it, there's no game that loads the cards as heavily as FurMark does... I don't even bother downloading it :D

My airflow is fine, Antec Big Boy 200mm modded into my side panel blowing directly on the cards, my cousin has 2x 140mm in his side panel, that helps too but I prefer my own solution ;)

What I especially like about the Zalman VF1000 coolers is that your cards are STILL dual slot and NOT triple slot like when you install a Musashi or a Twin Turbo (pro and non pro)

Imagine Triple CrossfireX with 3 Zalman VF1000 coolers :D

[muggy]

Thanks Garrett.

Finally, VF1000 seems to be best choice for aftermarket cooler with this card. Is it true ?

Well, there's definitely other options, Prolimatech, Thermalright, and Scythe seems to have pretty decent solutions.

Zalman themselves are coming out with a new cooler for ATI and NVIDIA cards, VF3000.

Zalman Link (http://www.zalman.co.kr/ENG/product/Product_Read.asp?idx=385)

Test Results (http://forums.overclockers.co.uk/showthread.php?t=18138665)

Random Video with music (http://www.dailymotion.com/video/xd0ggi_zalman-vf3000-dual-fan-vga-cooler_tech)

Looks pretty nice, will be for sale soon I think. Probably not the best option for crossfire for most motherboards though.

[Necetra]

The Setsugen fits. Setsugen keeps the core usually in the 60-70s when gaming. Furmark sends it to the high 80s. Also, the Thermalright VRM-R4 is amazing. VRM furmark temps hover in the 50s, I haven't seen them hit 60 yet.

[ryboto]

I recently purchased a reference 5850 and a Trad2-GTX. In an upcoming build I will be restricted to a dual slot cooler, and with 12mm scythe fans, the trad2 is just about a 2 slot cooler. It installs fine, fit is perfect, but the VRM cooling is the issue. I wont be able to use thermalrights VRM coolers for this card, since there wont be space for it behind the video card.

The only alternatives I see are mounting some enzotech sinks, or use the ones thermalright provides with some thermal adhesive paste. The only other alternative is Zalman heatsinks. Zalman made a RHS70 heatsink for the 4890 vrms, and it would fit perfectly on the 5850, only issue is that it's 1.3cm too tall, so I'd have to cut the fins, or bend it. Then there's the issue of having the lone vrm chip near the x-fire connectors that I'd still have to use a different heatsink for. The other option, but most likely not viable is somehow getting the vrm heatsinks used in the Zalman VF3000A. They're cut perfectly for the 5850/5870, and they even made one for the lone VRM chip.

Anyone have any ideas I haven't thought of? Stock backplate doesn't fit with the Trad, the heatpipes get in the way.

[Garrett]

Well I tried a VF1000 on the bottom card here... not much luck, during COD4 (heavily shader dependant game) I've seen 70c max on the bottom card, which is usually the coolest of the 2, with the Twin Turbo it reaches 60c, that's it...
that's with both the VF1000 and the Twin Turbo @ 100% fan speed...

[Malik]

What about this cooler: LINK (http://www.caseking.de/shop/catalog/Grafikkarten/VGA-Kuehler-Heatpipes/Zalman-VF3000A-VGA-Kuehler-ATI-Edition::14649.html) ? Someone test it ?

[Garrett]

Yes, it owns :D
If I run 1.20v 950Mhz and put the fanmate to lowest (5v) then temp doesn't go above 60c when gaming :)
That's with a 180mm intake fan blowing fresh air on it @ 700 rpm :)
(using stock plate from 5850 as well, not the stupid Zalman sinks... they always tend to fall off bah)

[Stoner@Large]

so the vf3000a will work with the stock plate with no clearance issues?

[Garrett]

Yes! :D
No problems or anything :up:

Check my photo:
http://www.plaatjesupload.nl/bekijk/2010/07/07/1278512678-270.jpg

[Malik]

Looks nice ;)

[insaneninjaguy]

The fan on my stock cooler for the His HD5850 is starting to fail. I scrolled though the last 5 pages. I am seeing Zalman's VF3000A would one of the better 3rd party cooling for this card.

I currently have have the fan speed at 20% to keep from grinding to bad, but temps at idle are up wards of 58c for GPU.

[Garrett]

I have 2 Zalmans now, both running @ 5v and I have yet to see any of the 2 cards hit 65c :)

[KoHaN69]

coolio

[sn0w420]

insaneninjaguy: I'm having the EXACT same problem as you are...

Looks like the VF3000a is the way to go for this card? I dont overclock much or run Crossfire or anything, just need something to replace the stock cooler that will be nice and quiet (and preferably easy to install... never changed coolers on a GFX card before)

[Kain665]

10 minutes Furmark (renamed) with stock settings and a Arctic Cooling Twin Turbo Pro. Just sayin.

http://img821.imageshack.us/img821/5136/etqw2010091211151631.th.jpg (http://img821.imageshack.us/i/etqw2010091211151631.jpg/)

[sn0w420]

Kain665: what did you use to cool the VRM and RAM chips? Did you have to buy anything else or did you use the base plate for the stock cooler?

[Kain665]

I dremeled the side of the stock base plate for better clearance for the heatpipes.

[sn0w420]

Can the AC Twin Turbo pro be used with the stock base plate without any (significant) modifications? I dont have a dremel tool and won't be able to get one... just want to make this as straightforward as possible.

[Kain665]

Unfortunately, no. It will be propped up on an angle by the heatpipes. Look into a GELID soloutions heatsink, that *should* work with the stock plate but don't quote me on it,

[darckhart]

i just decided to update here in case anyone is curious. i have 2x5850 reference. installed gv1000 because amazon was oos on the vf1000. afaik, just the color is different from the plating (gray vs copper).

my cards are sandwiched together on my mobo. let's assume the case has low-mid airflow. (i left the side panel off to use my portable room fan to blow air at it when needed.) i only put the gv1000 on my top card since, without it, stock hsf puts top gpu ~10C warmer.

both my cards are RBE'd using stock voltages and set to 850/1100. (i can push it more, but most games i dont feel any difference until i crank up SSAA, so i didn't bother.) ambient ~22-26C. the gv1000 requires mobo fan header because it is 3 pin. control is provided via a dial with no apparent visual settings. lowest is nearly inaudible over my case fans noctuas at 1600rpm. highest, you can really hear it whine.

one thing to note is that once you remove the stock hsf, the VRMs are exposed. I used the included ram sinks from teh gv1000 and stuck them on the VRMs. Honestly, it doesn't seem to do that much.

if 1 monitor connected, idle clocks both come down to 157/300:
top gpu ~36C, VRMs ~41C, VDDC current ~1.7A
bot gpu ~31C, VRMs ~37C, VDDC current ~1.7A

if 2 monitors connected, top gpu idles at 400/1000, and bottom gpu at 157/300:
top gpu ~45C, VRMs ~49C, VDDC current ~5.2A
bot gpu ~31C, VRMs ~37C, VDDC current ~1.7A

when gaming, you MUST set fan at MAX. the heatsink sucks heat from the gpu VERY well (it'll become too hot to touch in about 3 min), and since you dont have fan directly moving air over the VRMs, they get VERY VERY hot. my recommendation is that you need case with airflow at least med-high. (or a portable fan)

when gaming:
the gv1000 keeps the top gpu in step with the bottom and it rarely breaks 75C. however, the VRMs can reach 85+ simply because it has lost the airflow from the stock hsf.

in summary:

with low-med airflow case:
gv1000 will lower gpu temp to match with your bottom card. in exchange, VRM temps will go up ~10C (bottom card relative).

with great airflow over card:
you can drive the top gpu temp to mid 60s and VRMs to around mid 60s-70s.


pictures here: http://imgur.com/a/auuFT

[trt740]

It fits like a glove and I was able to use it because my Asus had it's own Vrm heat sink(black) and I didn't need the ATI one that comes with the Red 3000A. I didn't want the ATI version because I didn't like the red cooler it did not go as well with my black PCB. Also I have heard people complain about this bricking their video cards after installation. If your 5000 series card has a metal shim around your gpu you cannot use the black rubber O rings under the heat sink post or the base will not make contact right causing a dead video card. The O rings take the place of the shim if one isn't present to protect the gpu from being crushed. So only use them without a shim. The Asus direct touch cooler that came with my card was decent for a factory heat sink but this heat sinks is light years ahead of it running 20c cooler and is very quiet.


http://img.techpowerup.org/101012/2010-10-12 12.58.12643.jpg

[Garrett]

Very quiet, you run it @ 5v? (lowest setting of the zalman fan controller)

[trt740]

Very quiet, you run it @ 5v? (lowest setting of the zalman fan controller)

No I use it directly to my motherboard systems fan header and it defaults to the 2500 speed that the fan controller uses . I run it under the default thermal management for that fan header, it just works out that way. If I were to connect it directly and disable the thermal management controls default setting the fan runs at 3500 RPMS( which is faster than it's supposed to run) and it's a little loud. However , even at the 3500 rpm setting this heat sink is so efficient it does work any better than the 2500 RPM produced by the fan controller at 100 percent, or in my case the motherboard fan header with thermal management controls on. Hope that made sense. I run it at the 2500 rpm setting, same as the fan controller at 100percent, but I use a motherboard fan header to do it and at that setting I cannot hear it over my case fans. P.S I'm very picky about fan noise.

[Garrett]

yes it does :)
I have mine @ 5v all the time, it has yet to break 64c :D
very quiet as well, that's 950mhz @ 1.20v :)

[trt740]

yes it does :)
I have mine @ 5v all the time, it has yet to break 64c :D
very quiet as well, that's 950mhz @ 1.20v :)

Those O rings in the direction need to be addressed by Zalman. If your not paying attention and have a shim around your gpu your card will die big time.

[Garrett]

You're using the nvidia version on your ati card... ever thought of height differences that may be present between ati and nvidia cores? ;)
I use the VF3000A with the red shroud, WITH o-rings and without problems... I wouldn't go so far as to say you have a 'custom' cooler on your 5850 but like I said you're using the nvidia version...

[trt740]

You're using the nvidia version on your ati card... ever thought of height differences that may be present between ati and nvidia cores? ;)
I use the VF3000A with the red shroud, WITH o-rings and without problems... I wouldn't go so far as to say you have a 'custom' cooler on your 5850 but like I said you're using the nvidia version...

Nope I opened the boxes same mounting hardware the only difference is the ATI post has a chrome center and the N version a black center but the posts are the same size (or appear to be) and both kits have the O rings. Mine wouldn't make contact correctly with the O rings on but then I noticed my 5850 has a shim and not all 5850's do. Once I left off the O rings it fit like a glove. FYI I knew I was using the N version but was sure it would work after checking both hardware kits and reading a review with the A version on a Geforce card.

correction here
Okay after a bit more research It appears all 5850's have shims but mine wouldn't lock down right on the gpu with those O rings at all, but once removed it fit perfect and didn't hurt the die no matter how tight I went because of the shim. Maybe the bases are slightly different but to the nakeD eye they do not seem to be. Garrett did you use them?

[trt740]

Love this cooler man what a difference and I seem to have a hotter than usual 5850.

[trt740]

With this cooler my card never breaks 77c under extreme gaming condition with max voltage 1.35v 1000+ core and 5000 memory with my Zalman set at 2500 Rpm, which in a closed, solid sided case, is very quiet. Lets face it guys thats impressive and really makes this card great.

[slaveondope]

trt how are your vrm temps?
Mine creep around 90c at 1000mhz/1.225v with mcw60's and stock back plate.

[trt740]

trt how are your vrm temps?
Mine creep around 90c at 1000mhz/1.225v with mcw60's and stock back plate.


The Asus isn't a ref board so VRM temps are not listed just three cpu sensors but with mild over clocking at say 1.2v 900/ 5000 the core doesn't break 65c under extreme gaming like Trine and I really can't hear it over my quiet case fans, at the recommended max of 2500 Rpms. FYI, I also have a hotter than normal running 5850 but not anymore. Also I have a large finned factory installed VRM heatsink that came with my card and it is much better than the factory stock coolers. The included ATI Zalman 3000A VRM heat sink is similar in size to mine so I'm betting your temps would drastically drop.

It is allot bigger than it looks in these pictures and if you missed this I used the Nvidia version because I didn't need the VRM heat sinks and liked the black better but they are the same heat sink. http://www.zalman.co.kr/ENG/product/Product_Read.asp?idx=385 It has been a while since Zalman has matched the Arctic cooling VGA coolers but this cooler does and is just flat out quality.

[breakfromyou]

Alright. I've finally had enough with the stock heatsink on my Visiontek 5850. This thing has been 100% stock since I got it (right after launch), and I can't figure out why the card needs to make more noise and run warmer, but i've had enough. I reseated the heatsink today with MX-4 on it, and temperatures did drop a whole 10c, but this thing still hits 90c under full load, with the heatsink NOT at 100%. Crazy stuff.

The questions: Is there anything semi-affordable for the 5850? If not, i'd want to go all out. Has anything from the past 6-9 months fit the 5850 without issues? I definitely want to make sure the VRM stays cool, and i'd like some overclocking headroom (725/1000 default), with less noise and less heat. Shouldn't be hard with aftermarket cooling...Zalman makes the VF3000, which seems to have been everyones main choice here. I'm kind of broke these days (yay best buy!), and no longer get a discount on anything even remotely interesting, so it's time to either spend the $60, or to reuse what spare VGA heatsinks I have laying around. A VF900CU and a broken DuOrb. With some extra RAMsinks (assuming there are no clearance issues between the ramsinks/VF900. Is this even a good idea? Should I just fork out the $60 for a VF3000A?

ambient temps during summer = 80-85f. Yes, that would be 80-85f in my bedroom. Even at night, with the Air Conditioning on.

[Garrett]

See my post, number 126

You can use the stock plate on the memory and vrm chips and use the vf3000 @ 5v
That is what I did then and that resulted in very good temps and very little noise :) 

[breakfromyou]

Alright. I finally picked up a VF3000A and installed it over top of the stock heatsinks base plate, and my temps are INSANE. It's noisier and runs warmer. What the hell am I doing wrong? The card is hitting 90c under load, unlike before (with a bad bearing in the fan) 85c. This is absolutely :banana::banana::banana::banana:ing ridiculous.

This was the last one in stock at micro center. What else could I get, since this thing isn't working? I'm half tempted to put the busted stock heatsink back on if this thing BSOD's again because it hit 100c. Stock clocks...725/1000. What's this about the black O rings? Should I have not used them? It would make better contact with the GPU if you don't...right?

Looks like it's time to bust out the cell phone to watch a TV show. Desktop is too loud to hear anything :(

EDIT: one good thing did come out of this. Idle temps are 20-25c lower. Load is 10c higher. WTF?

[Ket]

Remount the cooler, and make sure the fan actually spins faster when the card gets put under load. Doesn't sound like anything is wrong with the cooler... just a bad install.

[breakfromyou]

I did hear a fan, but i'm not sure if it was both fans or just 1. If it was just 1, that would've explained a lot. Not enough room to plug the computer in and see the bottom of the GPU--but I heard something :\

I tried reinstalling it several times, gave up and returned it. Got a VF1000. High temps on this guy too, so i'm looking into ordering a VF3000A, hoping it actually works this time around. 70c under full load is kind of a joke on a $50 heatsink that weighs 10 pounds, due to the amount of copper.

At least it's quiet?

Think it would be worth ordering a VF3000A on newegg and returning this VF1000? Definitely not happy with 70c under full load. VRM temps are staying around 75c.

[zanzabar]

what thermal paste are u using, and do u have anything to pull the air away from the heat sink, like a vent or open pci slot covers, or maybe u need a fan exhausting on the side panel.

[MadBoris]

That's nuts, those temps. There has got to be something weird going on, because just for shtz n giggles I slapped a 4 year old HR-03GT (2x92mm low-cmf fans)on my 5850 and it's peaking out at 57C in Kombuster 1001/1175 @ 1.250v. What type of TiM are you using and how old is it?

[breakfromyou]

Brand new tube of MX4, and it was making good contact every time. I tried having my side panel fan as intake and exhaust. I got slightly lower (3c lower) temps with it as intake, with the side panel just propped up against the case. Basically telling me that the heatsink wasn't getting enough air...

I'm thinking only one of those fans was working...

[MadBoris]

Yeah it has to be something to do with the airflow through the sink, or lack thereof. MX-4 is not the best tim but not 90C+ load bad.

[breakfromyou]

It's not the best, but it should be more than enough. It's not like i'm using some 10 year old generic white stuff.