Crossfire 290X, G10+H55 Insanely hot temperature?

[anetaxll]

I just got 2 R9 290x ytd, The stock cooler was running aroud 75-80C under full load(no cf yet), My case is H440 and I am unable to do CF with stock cooler in that case unless I leave my case open so I purchased NZXT kraken G10 with Corsair H55+Gelid Kit+ Copper memory heatsink.

I installed everything, and I let it pull in air from the front intake. first I run it open case and it is giving me 74C on top card and 68C on second which is weird enough for water cooling, everyone else got below 60C.

Now I closed my case and my temp went right up to 95C on top card and 85 on second, my system crash 1 time.

I have checked that the h55 is securely attached to the gpu, no wiggle and if I tighten up any more than this my card will bend!

what have I done wrong here?

 

[Attic]

74c and 68c in crossfire for those cards is very good. Air cooling would have a hard time doing that and improperly installed water cooling I think would give higher temps.


Can you post a picture of your setup?


Given you closed your case and then the temps shot up I think it's likely hot air isn't getting out of the close case quickly enough.


What is your case fan situation? Can the G10's be setup to exhaust air out of the case rather than drawing air in? If I understand correctly your drawing air into the case to cool G10 setup.

 

[Stuka87]

74C and 68C for those cards are fine. Reference cards run at 95C, which is where it will throttle at.

I am not seeing what your issue is? You are well below the danger zone, which the cards cannot even get into as they throttle if they hit 95C.

 

[Face2Face]

I was going to say your G10 brackets are not tight enough, but it sounds like they are if the PCB's are starting to bend. I tightened my bracket by hand and then used a phillips head screwdriver to do another full turn or two.

I call upon the forum member know as "Silverforce11" to help answer your question.

 

[realibrad]

how much thermal compound did you use?

 

[Hitman928]

The top card going from 74 to 95 after closing the case should not happen with water cooling, even an AIO. Are you sure your rad fans are facing the right direction? How many fans besides the rad fans do you have and how many are bringing air in versus pushing air out?

 

[anetaxll]

The top card going from 74 to 95 after closing the case should not happen with water cooling, even an AIO. Are you sure your rad fans are facing the right direction? How many fans besides the rad fans do you have and how many are bringing air in versus pushing air out?

It just did! I don't know why this is, since this case has a bad airflow, 2 front intakes (gpu radiators), and top radiator for h105, this is a must cause I see a huge different in my cpu temp when I use it as an intake and rear as an exhaust

 

[Stuka87]

It just did! I don't know why this is, since this case has a bad airflow, 2 front intakes (gpu radiators), and top radiator for h105, this is a must cause I see a huge different in my cpu temp when I use it as an intake and rear as an exhaust

Wait, you are using the GPU radiators as intakes? This is a big no no. You are basically pre-heating all the air that goes into your case. The GPU radiators HAVE to be exhaust. You can exhaust out the front if need be.

 

[Makaveli]

74C and 68C for those cards are fine. Reference cards run at 95C, which is where it will throttle at.

I am not seeing what your issue is? You are well below the danger zone, which the cards cannot even get into as they throttle if they hit 95C.

Those temps are not good for a CLC.

I'm using a G10+H55 and I only hit 60c with heaving stress testing my highest ingame load is like 55c.

I'm only using a single fan on my rad in and exhaust position at the back of my case.

It has to be remounted or something isn't making proper contact.

 

[realibrad]

what it sounds like, is the direction of the fans are competing. If all fans are set to pull air out, there isint an intake. If you have 1 fan as intake, and 2 as exhaust, then you dont have enough flow. Make sure you equalize the air pressure.

 

[SniperWulf]

Have you removed the grille's from your top and front panel yet? I did and it helped my temperatures quite a bit.

I also completely reversed the flow of air in my H440.

- At the rear, I have the H55 from the R9 290 in push/pull as an intake.
- At the top, I have an H50 on the CPU as an intake. I moved the 140mm from the rear to the top.
- At the front, I reversed all 2 120mm fans to pull air out of the case.

 

[anetaxll]

Wait, you are using the GPU radiators as intakes? This is a big no no. You are basically pre-heating all the air that goes into your case. The GPU radiators HAVE to be exhaust. You can exhaust out the front if need be.

Tried that, no improvement in temps at all

 

[Makaveli]

Tried that, no improvement in temps at all

what are your ambient temps? also what were your temps like on the stock cooler?

 

[anetaxll]

Have you removed the grille's from your top and front panel yet? I did and it helped my temperatures quite a bit.

I also completely reversed the flow of air in my H440.

- At the rear, I have the H55 from the R9 290 in push/pull as an intake.
- At the top, I have an H50 on the CPU as an intake. I moved the 140mm from the rear to the top.
- At the front, I reversed all 2 120mm fans to pull air out of the case.

Problem is that I have crossfire set up so if I put the h55 at the rear, the other one is gonna get hot regardless so is a bad idea imo. If I stripped everything off, my temp will only top out 67C that is a WHOPPING improvement. the problem I have seems to be an airflow within the case. do u have any other suggestion?

 

[anetaxll]

what are your ambient temps? also what were your temps like on the stock cooler?

Ambient temp is 28C, stock cooler on the tri x is 80, on the reference card is around 95C, If I close the case with the stock cooler my pc will crash during intensive usage. Although it is perfectly fine if I just run on 1 card

 

[Geforce man]

could you take some pictures of your setup and post in this thread, so that we can better help make suggestions for you? I am going to hazard a guess that there are airflow issues being created within your case.

 

[Makaveli]

could you take some pictures of your setup and post in this thread, so that we can better help make suggestions for you? I am going to hazard a guess that there are airflow issues being created within your case.

Agreed we need pics!

Since this is an Crossfire setup do you have a G10 on each gpu?

If you only have it on 1 gpu what are your temps like if you pull one of the gpu's out and just test with 1.

 

[Attic]

I'd reccomend modding the side panel to add 1 or 2 120mm fans mounts or 1 larger fan mount.

Then with additional fans experiment where to put radiator exhaust.

I'd reccomend if possible.

Front of Case: all intake

Side of Case (modded for fans): all intake

Rear (1x120mm?): Radiator exhaust

Top of Case (mod if needed for 2x120mm): Radiator Exhaust


I'm working on assumption you have a total of 3 120mm radiator/fans.


290x in crossfire produce a lot of heat, that has to get out of the case and you need good airflow into the case.



I had a Rosewill Thor v.2 case running 290 xfire (not 290x)

Intakes:
1x230mm front
1x140mm bottom
1x230mm side

Exhaust:
1x140mm rear
2x140mm top

And was adequate, I wouldn't have wanted less airflow when running these all out. I've since downgraded the case and have had to drop the cards performance to limit heat output.

 

[anetaxll]

could you take some pictures of your setup and post in this thread, so that we can better help make suggestions for you? I am going to hazard a guess that there are airflow issues being created within your case.

As requested

 

[anetaxll]

Snip.

Modding this case would destroy its aesthetics though, and its too much hassle, rather swap out case for the Corsair 540, 760T or phanteks enthoo Pro

 

[realibrad]

ok, so the only thing I can't tell is what direction the top fans are going.

Rear fan is Intake.
Front 3 fans are exhaust.

If those top fans are exhaust too, that is likely the problem right there. That would be 5 fans exhaust, and 1 fan intake.

 

[anetaxll]

ok, so the only thing I can't tell is what direction the top fans are going.

Rear fan is Intake.
Front 3 fans are exhaust.

If those top fans are exhaust too, that is likely the problem right there. That would be 5 fans exhaust, and 1 fan intake.

Top 3 fans are intake

 

[Face2Face]

I would think this be more efficient, since warm air naturally rises (Less dense).

 

[realibrad]

ok, so the intake is from the CPU. That means you are inputting warm air, that is then going to cool the exhaust of the gpu radiator. When the side panel is off, the gpu radiators can use cool room air, but once you put the side panel on, it has to get air that comes in from the cpu.

Further, if the cpu fans are not blowing in enough air, its not going to give enough to the gpu. Try cranking up the cpu fans to high settings with the side panel on, and see if the gpu temps drop.

 

[Makaveli]

I would think this be more efficient, since warm air naturally rises (Less dense).

Agree with heat rising.

Both G10's rad should be setup as intakes at the front of the case.

Exhaust should be top and back.

But i'm wondering if he should focus on once gpu at a time once he has the setup optimal then move on to the second one.