Helpful ReplyBuild from hell strikes again...Bad 580 or Bad PSU?

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DarkAngel_ZERO
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2011/09/22 21:25:38 (permalink)
Hey all, back again with the computer build from hell...
 
So, finally got my system rebuilt, got Windows installed on a spare drive while the SSD goes in for an RMA, but now I'm running into more problems. I've been trying to get my Tri-SLI setup running, but Windows keeps erroring out during the WEI performance test. After installing HWMonitor and DL'ing GPU-Z, I noticed that one of the cards cannot engage the 3D clock speed without causing a hard lock or driver reset of my entire system.
 
Now, at first, I was thinking something was wrong with the PSU, a Corsair AX1200. After the defective cable destroyed my hard drives and lit my Blu-Ray drive on fire with a nice 12v charge sent down the grounding line, I half expected something to be wrong with the PSU, and I assumed that the clock speed problem might have been related to the unit itself. But all the PSU tests I've run using my tester have passed, save for a slight spike in the "PG" value (supposedly, the norm is between 300ms and 900ms, I average at 500ms, but more often than not, I get an HH error, meaning the value is too high).
 
So, opening up GPU-Z, I can see that two of the three cards are running at stock clock speeds (not the 2D clock values), but one of them shows only 2D clock values. However, because GPU-Z doesn't identify cards based on the PCIe slot, I have no way of telling which one of these cards is possibly defective. Add to that one small complication...

 
Yeah...that would be a EK bridge holding all three cards together. Makes doing individual testing a pain in the ass. Worst case scenario, I could disassemble the cards and try to connect the tubes to each one individually, but I'd like to be able to run a test or two without having to take everything out of the case for the 9th time in the last week.
 
Is there any way to test the cards separately, despite being connected to the board (each card has it's own monitor connected to it)? Could I remove the SLI bridge and do them one-by-one?
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RainStryke
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Re:Build from hell strikes again...Bad 580 or Bad PSU? 2011/09/22 21:42:23 (permalink)
Are you using EVGA Power boost? I can't tell by the picture. 
 
As for testing each card separately, they still pull power from the board even if they are not connected up to the 6 and 8 pin power connections. 

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DarkAngel_ZERO
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Re:Build from hell strikes again...Bad 580 or Bad PSU? 2011/09/22 21:44:45 (permalink)
The board is a Classified 3, and I'm using the molex connector at the bottom (pretty much the same as the PowerBoost).
 
What I'm hoping to do, as far as testing, is running some sort of app or program that'll force the 3D clocks on, but allow me to pick which card to run on. I think if I disconnect the SLI bridge, I can run each card separately, but I'm not 100% sure.
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airddragon
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Re:Build from hell strikes again...Bad 580 or Bad PSU? 2011/09/23 07:46:24 (permalink)
Doesn't GPU-Z have the serial number displayed for each card?  Might be a way to identify which one it is.
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loveha
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Re:Build from hell strikes again...Bad 580 or Bad PSU? 2011/09/23 07:53:29 (permalink) ☄ Helpful
The Classy boards have Jumpers to disable the PCI-E Slots, they are on the right side just below the 24 Pin Connector. I have used it to disable my PCI-E SSD once while trouble shooting. Move the Jumper and card will no longer be seen by the computer.

Case: Corsair 900D
Motherboard: EVGA Z170 Classified E179
CPU: Intel Core i7 6700K 4.6GHz
RAM: 16GB Corsair DDR4 2133 16-15-15-36
GPU: EVGA GTX 1070 FTW DT SLI
PSU: EVGA 1000w G2
SSD: Samsung 512GB 950 Pro NVME M.2
Monitor: Acer Predator X34 100Hz G-Sync
Sound: Schiit Modi 2 DAC~Schiit Vali 2 Amp
Headphones: AKG K7XX Massdrop Edition

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DarkAngel_ZERO
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Re:Build from hell strikes again...Bad 580 or Bad PSU? 2011/09/24 08:17:28 (permalink)
Thanks loveha, that worked perfectly! Turns out the first card is the one having trouble (it won't even boot into windows on just the first card).
 
Go figure, the first card to get a waterblock, the one that concerned me that something might have gone wrong, actually did go wrong. Arg!
 
Well, I guess on the plus side, I still have a "blank" for the EK bridge, so at least I can use my computer while I wait for the RMA on the card.
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