4870 Waterblock Options

[dnottis]

Sad for sure...in are the days of restrictive full coverage blocks I guess.

Expensive too

[leo_bsb]

I received my koolance full cover block:
http://www.xtremesystems.org/forums/...16&postcount=8

[Cornelious0_0]

Expensive too

lol, you make it sound like you DON'T like paying 3 or 4 times as much for more restrictive less effective GPU cooling.

I received my koolance full cover block

Although it does look nice, I'm gonna wait on the EK full coverage block myself...seems to have a little more potential, I dunno...I think that EK stuff just generally gets a stronger thumbs up then a lot of Koolance gear to begin with, Koolance is just the only one a lot of people have as an option for a full coverage 4870 block at the moment.

[clee]

..... even with the stock cooler, they are going to die if you push Furmark too much.

I wish I would have seen this thread earlier as I already pre-ordered the Fuzion block from NCIX this past monday but now I'm gonna cancel it.
Anyway, thanks for taking the time to do all these testings. Really appreciate that. But I think the stock cooler seems to do the job just fine.

HIS HD4870, fan speed manually set @ 55%, room temp ~ 27C, stock clock.
Everything is still air cooled as I'm still bench testing my Q9450 & MF2. VRM temperature seems to stabilize in the 80's. but perhaps it's too early to tell I stopped it after 7 mins.

http://img522.imageshack.us/my.php?image=furmarkex3.jpg

[x0vash0x]

So, I'm assuming then that the D-Tek isn't a single slot solution?

I'm more interested in what waterblocks are single slot solutions. I know that full cover blocks are, but is the D-Tek Fusion 2 single slot?

[Cornelious0_0]

So, I'm assuming then that the D-Tek isn't a single slot solution?

I'm more interested in what waterblocks are single slot solutions. I know that full cover blocks are, but is the D-Tek Fusion 2 single slot?

Sure is...honestly don't know if there are any/very many dual slot GPU only waterblocks out there.

[lyl]

You're great, many thanks for doing the tests.
I now fully agree with you that using a GPU only WB without active cooling will kill th eboard at those temperatures

It's really the VRM. Sad, it seems that the time of GPU only WB is done, unless we can fit some mosfets WB on the card

I think you may be jumping to conclusions here. GPU-only blocks are not 'done'. You just need good air flow to your components! The stock cooler provides direct air flow to the vregs/ram, and needs to be compensated for if you remove it.

From a failure analysis POV, if the OP's original card crashed multiple times, then finally died, thats a very good indication that one of the board's components were bad to begin with. Probably would have died if he would have kept using the stock cooler.

[dnottis]

Flashed my Asus HD4870 today. Auto tune gave me 890 core, but I backed that off as I dont want to fry this card.

Here is a Vanatage run.



..and 3dmark06

[Cornelious0_0]

Slick...I'm gonna have to give my HD4870 a shot...never even tried pushing it.

[leo_bsb]

ok, here is the VRM temp, using the Koolance FC block.
I set the rad fans on slow and silent, this is stock speed for CPU and VGA (stability testing with prime and furmark before OC).
If I got it correctly the VRM is not cooled by the waterblock, correct?

[jonny_ftm]

ok, here is the VRM temp, I set the rad fans on slow and silent, this is stock speed for CPU and VGA (stability testing with prime and furmark before OC).
If I got it correctly the VRM is not cooled by the waterblock, correct?
http://i104.photobucket.com/albums/m...er/vrmload.jpg

So, it looks like the stock cooler is a good performer at lowest setting

[jonny_ftm]

And, we need some tests on a FC block for this card. Any temps readings under für with a FC block

[leo_bsb]

So, it looks like the stock cooler is a good performer at lowest setting

What kind of vrm temps the stock is getting under load?

And, we need some tests on a FC block for this card. Any temps readings under für with a FC block

These results were achieved using a Koolance FC block. 41C core under load. 77C for the VRM.

[jonny_ftm]

What kind of vrm temps the stock is getting under load?


These results were achieved using a Koolance FC block. 41C core under load. 77C for the VRM.

My mistake, I thought you were showing results with the stock cooler. I mis-read what you wrote

So it looks like FC blocks is a good go. Thanks for clarifying it

[Yozzman]

Im wondering how the cool te VRM's here...

[clee]

What kind of vrm temps the stock is getting under load?


These results were achieved using a Koolance FC block. 41C core under load. 77C for the VRM.

When you say "stock", you mean the stock cooler ?
I think it's pretty good :
http://www.xtremesystems.org/forums/...=195882&page=2
2nd last post.

Did you have a chance to OC the card and if so, what's the temperature like on the VRM with the Koolance block installed.

I'm not really a fan of full-covered block and my MCW55 has served me well for 3+yrs on 3 different cards. But I think I'm gonna bite the bullet and spring for a full block this time.
Either this one or the EK block. I'm leaning towards the Koolance block cuz it's cheaper lol.

btw can someone tell me the safe max. mem clock ?. I managed to run it @ 1100 with 2+hrs Atitool and 40+ mins into Furmark w/o problem, other than the v. high VRM temp.
Is it true that the DDR5s shouldn't be pushed beyond 1000. I really don't wanna kill the card prematurely
especially if I am going to spend 100 bones just on the full-covered block alone. TIA

[flopper]

When you say "stock", you mean the stock cooler ?
I think it's pretty good :
http://www.xtremesystems.org/forums/...=195882&page=2
2nd last post.

Did you have a chance to OC the card and if so, what's the temperature like on the VRM with the Koolance block installed.

I'm not really a fan of full-covered block and my MCW55 has served me well for 3+yrs on 3 different cards. But I think I'm gonna bite the bullet and spring for a full block this time.
Either this one or the EK block. I'm leaning towards the Koolance block cuz it's cheaper lol.

btw can someone tell me the safe max. mem clock ?. I managed to run it @ 1100 with 2+hrs Atitool and 40+ mins into Furmark w/o problem, other than the v. high VRM temp.
Is it true that the DDR5s shouldn't be pushed beyond 1000. I really don't wanna kill the card prematurely
especially if I am going to spend 100 bones just on the full-covered block alone. TIA

850/1000 is enough speed for me.
Not sure how it stands against other singelcards but runs everything I want just fine.

[demonkevy666]

just a quick question

see this water block you think this will fit the 4870 ?

http://www.aerocooler.com/shop.cart?..._id=FANTTW0150

http://www.techpowerup.com/img/07-05...I2900XT-15.JPG 2900 Xt stock cooler

http://www.techpowerup.com/reviews/D...es/cooler2.jpg 4870 stock cooler

look at the screw hole they all look like they're in the same spot.

[SNiiPE_DoGG]

my chopped stock cooler does about 49C idle 85C load, sorry I don't have ss for ya

[leo_bsb]

When you say "stock", you mean the stock cooler ?
I think it's pretty good :
http://www.xtremesystems.org/forums/...=195882&page=2
2nd last post.

Did you have a chance to OC the card and if so, what's the temperature like on the VRM with the Koolance block installed.

I'm not really a fan of full-covered block and my MCW55 has served me well for 3+yrs on 3 different cards. But I think I'm gonna bite the bullet and spring for a full block this time.
Either this one or the EK block. I'm leaning towards the Koolance block cuz it's cheaper lol.

btw can someone tell me the safe max. mem clock ?. I managed to run it @ 1100 with 2+hrs Atitool and 40+ mins into Furmark w/o problem, other than the v. high VRM temp.
Is it true that the DDR5s shouldn't be pushed beyond 1000. I really don't wanna kill the card prematurely
especially if I am going to spend 100 bones just on the full-covered block alone. TIA

My previous posts are all using the koolance full block, I didn't try the card I'm running it at 750@1100 for 2 days running furmark. Why we should keep memory under 1000?
The VRM is on the lower 70s.ºC. GPU and memory are hitting 41ºC.
Should I raise the core and lower the memory? Where do you guys read about higher than 1000mhz would kill the card?

[SNiiPE_DoGG]

it doesnt, all cards arent guarenteed to do over 1000, depends on the bin of the ram obv, but with volt mods ram easily does 1150 (im not even Mvddc or mvddq modded and i can do 1125 artifact free)

[Sparky]

So what's the verdict on the 4870? Can a GPU only block with ramsinks work OK or is a fullcover EK block preferred?

[alo]

So what's the verdict on the 4870? Can a GPU only block with ramsinks work OK or is a fullcover EK block preferred?

Probably full-cover block is preferred, but if you don't want to spend $$$ for FC block and throw it away after card upgrade, MCW-60 + handmade sinks on RAM and VRM parts do the job just fine. I have 825/4000 rock stable without voltmod (yet?). Can post pics later...

[Sparky]

I think I'm going to wait on iandh sinks for it

[roubagalinhas]

i'm having strange stability issues with a 4850+mcw60, but only in 3dmark.
furmark and games run flawlessly

http://www.xtremesystems.org/forums/...0&postcount=32
http://www.xtremesystems.org/forums/...6&postcount=34

i suspect that there could be any chip(on the card's back?) that needs additional cooling

4850 power circuitry is different from 4870 and i think it doesn't have those chips that you've ramsinked/cooled on 4870. any clue on what component i have to cool?

one more note, with a fan blowing at full rpm (2500) to the card i have no crashes(3dmark only), but if if lower rpm(1500) it crashes
all critical components that im aware of are ramsinked: memory chips and mosfets