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Card unstable after watercooling?

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straxxus

Registered
Joined
Mar 10, 2015
Location
Cybertron
As the title indicates, I Installed a waterblock, and now my 980 will no longer overclock at all without crashing the driver. Its a weird issue, because i never used to run into driver crashes when overclocking, normally just artifacts. I did change some stuff around as far as my power supply was concerned, and now have 4 hard drives on the same rail, i was thinking this might be the issue? does a gpu use the same rail as an hdd does? any other recommendations?
p.s. I already tried uninstalling/reinstalling newest drivers
 

Zantal

Member
Joined
Mar 19, 2009
It shouldn't use the same rail, It may depend on the manufacturer though. (I am not sure as I am not an expert)

What I do know about though is something about watercooling, and more precisely if you didn't place the conctact pads correctly (those that go between chip and waterblock) you can have such issues. all it takes is 1 misplaced ram cap or the block not being evenly fixed to the card (less likely and very easy to spot)

Or your card was never great to being with.
 
OP
S

straxxus

Registered
Joined
Mar 10, 2015
Location
Cybertron
My PSU is an evga supernova 750 g2, and yes, I did seat the card again into the slot and it didn't change anything. I think I'll pull the block apart and reseat/trim some of the thermal pads and see if that works.
 

ATMINSIDE

Sim Racing Aficionado Co-Owner
Joined
Jun 28, 2012
The PSU is almost certainly NOT the issue.

I think pulling the block is your best idea, let us know how it goes.
 

Soulcatcher668

Member
Joined
Jan 2, 2012
Over tightening the mounting screws can cause problems as well. Make sure you are not bending the PCB when you reinstall after checking the thermal pads.
 
OP
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straxxus

Registered
Joined
Mar 10, 2015
Location
Cybertron
Well, I took it all apart, trimmed the pads with an xacto knife, and re-seated the backplate a couple times for good measure, and my previous over clock now validates! No driver crashes yet. Temps are also a surprising 15° cooler. Thanks for the help!
 

Zantal

Member
Joined
Mar 19, 2009
Yeah, I had the same issue, where one cap just decided to slip away unnoticed. Have fun with your new setup =)