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Dead card after installing water block?

post #1 of 7
Thread Starter 
I just picked up a reference Sapphire 6950 and had planned on adding it to my water loop with an identical 6950. I tested the card out prior to installing the water block and after a few stress tests it was working fine. I then flashed it with a 6970 bios (just like my other card) and did additional testing to make sure it took ok. I did some stress tests and then also ran it through the 3DMark 11 benchmark and all was fine.

So I went on to install the EK FC6970 (the same block I have on my other card as well). Everything seemed to go ok with the install. EK seemed to have changed the installation since I got the other block and there were screw in standoffs instead of black plastic ones. That and they didn't seem to include correct screws for the GPU area. I had some short M3 screws handy, so it became a non issue.

At that point I tore down my rig and added the card to the loop. It was then that I started having issues with windows booting and thought maybe it was a corrupt driver or something of the like. After lots of troubleshooting, I realized that the card wasn't being recognized by windows as working correctly. I removed the primary card from the PCI-E slot and left the second card installed. I got a good post "beep" but no display output.

Not sure what I could have done that would have caused this. Possibly over tightening? The only other thing I can think of is that I did is use too much of the arctic silver thermal paste remover and surface purifier. I got some on the pcb surrounding the GPU die. Any input or thoughts would be helpful. I'm attempting to start an RMA with sapphire, but considering I'm not the original owner, I'm not sure if I'll be successful there.
Spidey81
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Spidey81
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post #2 of 7
Did you move the 'bad' card into the first PCI-E slot? Some boards won't display video from a card in PCI-E slots 2 or 3.
post #3 of 7
Thread Starter 
No, but my initial testing before installing the water block were done from the second pci-e x16 slot.

It looks like I'll be able to rma it, but they'll charge me $20 since I don't have the original receipt. Gonna try using the stock heat sink before I send it back though.

Sent from my Galaxy Nexus using Tapatalk 2
Spidey81
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Custom PWM Fan Controller Windows 7 Home Premium 64bit Samsung SyncMaster 2433BW Microsoft Sidewinder X6 
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Spidey81
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post #4 of 7
The stock heat sink will have a fan that you plug into the PCB right? Maybe with the block it's thinking the fan is broken, just like a motherboard would without a cpu fan.
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post #5 of 7
Thread Starter 
Tried that too. Thanks for the thought though. I'm hoping the water block is shorting something.

Sent from my Galaxy Nexus using Tapatalk 2
Spidey81
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Spidey81
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CoolingCoolingCoolingCooling
EK FC-6970 x2 XSPC D5 Dual Bay Reservoir (black vinyl version) XSPC RX360 XSPC RX240 
CoolingOSMonitorKeyboard
Custom PWM Fan Controller Windows 7 Home Premium 64bit Samsung SyncMaster 2433BW Microsoft Sidewinder X6 
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post #6 of 7
Quote:
Originally Posted by MME1122 View Post

The stock heat sink will have a fan that you plug into the PCB right? Maybe with the block it's thinking the fan is broken, just like a motherboard would without a cpu fan.


Fan doesn't have any safety measures built into it so whether it was plugged in or not, does not matter.

Quote:
Originally Posted by spidey81 View Post

Tried that too. Thanks for the thought though. I'm hoping the water block is shorting something.
Sent from my Galaxy Nexus using Tapatalk 2


Take it apart and double check your work. It's on you at this point imo.
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The 3930
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post #7 of 7
Thread Starter 
I believe you're right. Just wanted to get some feedback before I drained the loop again. See if there was something I missed. But it looks like I've tried everything aside from tearing it down.

Sent from my Galaxy Nexus using Tapatalk 2
Spidey81
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MINI-REAKTOR
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CPUMotherboardGraphicsGraphics
i7 2700k Asus Sabertooth Z77 HD 6950 HD 6950 
RAMHard DriveOptical DriveCooling
G.SKILL Sniper  OCZ Vertex 3 Sony Optiarc DVD-RW XSPC Raystorm 
CoolingCoolingCoolingCooling
EK FC-6970 x2 XSPC D5 Dual Bay Reservoir (black vinyl version) XSPC RX360 XSPC RX240 
CoolingOSMonitorKeyboard
Custom PWM Fan Controller Windows 7 Home Premium 64bit Samsung SyncMaster 2433BW Microsoft Sidewinder X6 
PowerCaseMouse
OCZ ZX 850W NZXT Switch 810 (black) Microsoft Sidewinder 
CPUMotherboardGraphicsRAM
Intel i5-3570k Asrock Z77E-ITX Powercolor HD 7950 2 x 4GB Samsung low profile 1600Mhz 1.35V DDR3 
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Compact Splash by She Loved E and Dwood 
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Spidey81
(19 items)
 
MINI-REAKTOR
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CPUMotherboardGraphicsGraphics
i7 2700k Asus Sabertooth Z77 HD 6950 HD 6950 
RAMHard DriveOptical DriveCooling
G.SKILL Sniper  OCZ Vertex 3 Sony Optiarc DVD-RW XSPC Raystorm 
CoolingCoolingCoolingCooling
EK FC-6970 x2 XSPC D5 Dual Bay Reservoir (black vinyl version) XSPC RX360 XSPC RX240 
CoolingOSMonitorKeyboard
Custom PWM Fan Controller Windows 7 Home Premium 64bit Samsung SyncMaster 2433BW Microsoft Sidewinder X6 
PowerCaseMouse
OCZ ZX 850W NZXT Switch 810 (black) Microsoft Sidewinder 
CPUMotherboardGraphicsRAM
Intel i5-3570k Asrock Z77E-ITX Powercolor HD 7950 2 x 4GB Samsung low profile 1600Mhz 1.35V DDR3 
Hard DriveCoolingOSPower
256GB Sandisk Ultra Plus SSD Custom CPU/GPU water loop Windows 7/8 64 bit Silverston SFX 450 watt modular gold rated 
Case
Compact Splash by She Loved E and Dwood 
  hide details  
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