GPU Watercooling Temps Outrageous

[AManWithPlan]

Dear Linus,

 

I have recently upgraded my ASUS R9 290 DCII to an AOI watercooler (Corsiar H55) using a Kracken G10 bracket. Now, the card already came with a good heatsink on most of the VRMs and I added my own copper heatsinks on ones that never had it.

 

My problem is performance. I am getting 2C lower under load than with the stock cooler (which I admit is a beast created by Asus), however, online claims are throwing out things like 60C while I am getting 78C. When I overclock beyond the factory OC, I get temps between 85-89C which I am just uncomfortable with.

 

All test were done with an open case so this is not an airflow issue. All of my AOI's are set up in pull with exhaust at the top of the case. I use Arctic Silver as my thermal compound.

 

Let me know your thoughts.

 

AManWithPlan

[dalomo]

~snip~

You do know that the forum isn't a direct link to linus' inbox right...?

 

also follow your posts you jive turkey

[don_svetlio]

@LinusTech please take a look.

You know he is new right?

[PineappleHolidays]

http://imgur.com/FClLFwI

 

It really depends on the fan / case config

[LiamApex]

Have you tried reapplying thermal compound also its not a direct link to linus

[APasz]

The only thing I can think of atm is that your block isn't making good contact with the chip, so maybe re-apply?

[MrBucket101]

Dear Linus,

 

I have recently upgraded my ASUS R9 290 DCII to an AOI watercooler (Corsiar H55) using a Kracken G10 bracket. Now, the card already came with a good heatsink on most of the VRMs and I added my own copper heatsinks on ones that never had it.

 

My problem is performance. I am getting 2C lower under load than with the stock cooler (which I admit is a beast created by Asus), however, online claims are throwing out things like 60C while I am getting 78C. When I overclock beyond the factory OC, I get temps between 85-89C which I am just uncomfortable with.

 

All test were done with an open case so this is not an airflow issue. All of my AOI's are set up in pull with exhaust at the top of the case. I use Arctic Silver as my thermal compound.

 

Let me know your thoughts.

 

AManWithPlan

How much thermal paste are you using? Too much is a bad thing

 

I would remove the AIO, and reapply thermal paste

[PudgyAstronaut]

Yeah something is wrong, but I am also going through debugging a similar setup right now. It's possible you need to tighten the waterblock down, but I am currently researching that myself, it was just something I was suggested. You will get better temps for the GPU if it is an intake and not an exhaust, but I don't think you should ever hit 70 unless you are doing something extreme or overclocking.

[PudgyAstronaut]

it's an H55 trying to cool a block of lava, what do you honestly expect.

 

Even the best air coolers keep the card around 70C, and watercooled ones can stay in the 50s, he shouldn't be going much higher than 70 with the H55 which leaves plenty of room between load temps and the 95C thermal limit... The card might have a reputation for being hot, but with good cooling it doesn't have to be.

[Jamdog]

The H55 isn't a great cooler, and you're using it to cool a 270 watt GPU. You shouldn't expect great temps unless you get a cooler with a 240/280 radiator

[LIGISTX]

You must not be getting good contact with the GPU die... I have a gtx 470 with a corsair h50 on it and it runs in the mid 50's to mid 60's under a 45% overclock game load.... A single rad is not bad for cooling a GPU, but yea those temps are way off! You didn't wipe the pre applied thermal compound off and not use any new compound or something did you? Also that stock corsair compound should be pretty good, at least it used to be when the H50's where new 6 years ago.

[KemoKa]

You come to this forum to speak with us, not to speak to Linus himself. That's not his job, it's ours.

 

Reapply your thermal paste. and do not spread it around on the die. It's not freaking spackle. I'm sorry for making assumptions but other than that I can see no other way apart from you not plugging in the fan connectors and pump to the motherboard, and that would just be completely ridiculous, tbh.

 

if that's not working for you, then it may be a faulty pump. I have no idea.

[AManWithPlan]

Haha, everyone is thinking I am trying to speak to Linus directly. Linus was intended to be short for Linus "community" or Linus Tech Tips. I know Linus personally won't answer this post guys, jeez.

 

Let me answer a few questions.

 

Old thermal compound was completely removed and Arctic Silver was applied. I applied the correct amount.

 

I am 95% confident the water block is tight on top of the GPU. My 5% doubt is that the ASUS 290 DCII has a metal box surrounding the GPU which also contacts the water block. I do not know whether the reference card has something similar but I do not think it in anyway obstructs contact with the actual GPU.

 

Airflow is not an issue.

 

The 140mm rad is giving other users 60C temperatures under load which I am not even coming close to. Standard clock temps have me around 78C and overclocking at jut 50mV more brings me to 85C-88C which I am not comfortable with. What is the point of a liquid cooler if it performs just as well as my stock air cooler.

 

I am sure I am providing 12 volts to the pump. I am sure the rad fan is spinning at its ideal RPM.

 

I do not have a hot room.

 

I cannot possibly agree that intake would be more efficient than exhaust, that's counterintuitive.

 

I will try to reapply the thermal paste and block and tighten as far as I am comfortable. If that fails I will test my H110 and see if the larger radiator makes the difference.

 

Will return with findings.

 

AManWithPlan