GPU trouble after first WC-loop - Help!

[SpArkLeS]

Hey guys,

I've got a little problem, I'll try to explain it thoroughly.

Last weekend I provided my rig with some custom watercooling parts, but upon restarting it looking at temps something strange happened.

I started Metro/Tomb Raider for some temp/fps readings and here is the problem.

Crossfire enabled with 14.2 beta drivers (clean install)
=> temp gpu1 went from 29°C to 100/104°C with 100% load ingame, fps was around 15fps
=> gpu2 didn't seem to do anything 
=> settings where high on 1440p (On air I got high fps)
=> lowered to 1080p, same amount of fps between 15-20fps

=> Same problem with Metro and Battlefield 4 (though Battlefield 4 ran a bit better)
I did have a crash 10 minutes in game.

Next test I did, was with gpu 1, crossfire disabled, same temp spike and even lower fps.
Tried out gpu2 seperatly and it works but same low fps and high temp.

=> Clean windows 8.1 install, clean 14.2 beta instal
Ran Furmark and temps would go to 104°C but would come back down to 52°C and remained there. GPU 2 didn't do anything 0% even though Crossfire was enabled.
Same low fps problem ingame though.

=> removed 14.2 beta drivers and installed 13.12 drivers.
Temps back to 100/104°C and same extreme low fps, crash after around 10minutes.

Upon feeling the waterblock they are not warm,

I checked bios, pci 3.0 enabled and both cards stand at 8x

I got recommanded to drain my loop and reseat the gpu blocks, but first test them on air.
Has anyone here got another solution before I do this?

Specs:

2x HD7870's from Sapphire
i5 3570k
Corsair AW750
Asus Sabertooth z77
Asus essence stx soundcard

1x 360 rad
1x 200 rad

D5 pump
EK waterblock for gpu and cpu

Nothing overclocked!

[zapsyou]

Should probably post this in troubleshooting

[Tam3n]

104 c on a gpu? Holy...

Well I think it's pretty obvious that your water blocks are not making good contact with the gpu...

Are you sure the pump is working etc?

[SpArkLeS]

104 c on a gpu? Holy...

Well I think it's pretty obvious that your water blocks are not making good contact with the gpu...

Are you sure the pump is working etc?

 

Yup pump is working, can see it in reservoir. 

cpu temps are normal around 20-25°C depends on the core.

 

I guess there is no other solution than draining and reseating the loop.

 

Sorry if I misplaced the topic  :blush:

[MontBlanco]

Were the GPU on a bridge that is set up parallel? Usually parallel set up might be a nightmare if air bubbles are stuck between or in. Or maybe you should go into bleed mode, only running the pump for 72 hours and also turning the speed of the pump up and down a couple of times if you have the dial.

 

That should ensure no bubbles were stuck and might narrow down your problem. Good luck!

[airdeano]

Yup pump is working, can see it in reservoir. 

cpu temps are normal around 20-25°C depends on the core.

 

I guess there is no other solution than draining and reseating the loop.

 

Sorry if I misplaced the topic  :blush:

 

got a picture of your loop?

 

prolly a large air pocket stuck in the GPU causing high temps, fixed a couple

already with massive air trapped in the GPU. tip and tilt case (system off)

to work out any air pockets left in the system.

[bcredeur97]

holy moly this would scare me so much... 104C on a GPU is enough to kill it instantly

[SpArkLeS]

It's working again! I took the gpu's out and reseated the blocks, I didn't use enough termal paste and might not have tightened the screws enough. 

Everything is working smoothly again. Idle temps are now 24°c, haven't really tested it, but 5 minutes of furmark on 1440p gave me 32°C and 68 fps (that's good right?)

 

I'll do some more testing tonight, it was late yesterday.

 

Here's some pics, the drive cage on the outside was temporary.

 

 

[Tam3n]

Looking good

[Foxxer]

Well, atleast you haven't fried some eggs... I like the paste on them thermal pads  :rolleyes:

 

Oh btw, where will you place the HDD / SSD tray later? 

[gatecrasherlok]

Very nice save, or else it could have been a wallet battering moment to say the least.

[AustinKZombie]

Well, atleast you haven't fried some eggs... I like the paste on them thermal pads  :rolleyes:

 

Oh btw, where will you place the HDD / SSD tray later? 

My guess would be in the 5.5" drive bay.