After market cooler for the ATI 5850

[trt740]

my wife has my good camera and I will take more later






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.

+ ?????

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]

+ ?????

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.
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[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/Produc...82E16835708011 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 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-...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 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



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!

[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!

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

[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

in case no side fan

in case side 120mm fan

Sorry for crappy iphone pics.