Significant underperformance by 2080ti Seahawk EK

lukevetz

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https://www.userbenchmark.com/UserRun/27792320
https://www.3dmark.com/3dm/46620784
My problem is specifically with my GPU. GeForce RTX? 2080 Ti SEA HAWK EK X. Since I've owned this card I've never really been able to hit what I expected as far as performance goes. With all the recent quarentime everybody has I decided to sit down and try to overclock it to try and get there. What I found while running various benchmarks is that even stock, I'm not seeing the numbers I should, frankly not even close. See the two scores above. Were talking sub 100 frames in games like planetside 2, and dota 2, which seems crazy to me. I've tried some stuff already, but I don't know what to try now. (I know userbenchmark isn't the best bench marking tool but it does show a good comparison with the bell curve to compare to other tests of similar cards).


These are some of the things I've done to fix the problem. Enable/Disable Gsync. Giving all three power ports on the GPU dedicated cables from the PSU. Removing all overclocks from GPU, CPU, and RAM in various combinations. (RAM and CPU OC seem to have no effect whatsoever). Flashed CMOS. Replaced PCIE extension cable with a shielded cable. I can hold a stable overclock on the card at 2000Mhz before benchmarks start to crash, but the benchmark scores and performance remain low. My hunch is that the card is not drawing full power. Here is a link to my GPU-z charts while running the 3DMark benchmark. (https://imgur.com/a/KzlEDTP). GPU load maxes out, GPU temp does not exceed 65C, clock is stock for this test, power consumption is steady at about 155W, TDP is steady at about 55-60%, PrefCap reason lists as pwr for the entire duration of the test. So my gut reaction was "ok bad power supply", but I have a 850W gold PSU and swapping out to another PSU gives same scores. Even still the 850W should be more than enough as I'm not running SLI or anything crazy here. What sticks out to me is the power consumption under full load is only 150-160W. This card is listed as 300W and has a 22 pin power connection so I expect it would draw WAY more than the 160W that it is pulling. I could be off base here, but thats my hunch and I don't know how to fix it. Live update shows I have the curent vBIOS. Honestly I'm running out of options here and am starting to think RMA might be my only option, but I would really rather avoid that with the whole working from home stuff going on, I kinda need my PC. And as much fun as working with widows basic display sounds... ewww...

SO. If any of yall have any advice or options to try I'm all ears.
 

Nichrome

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lukevetz date=1589410597 said:
Replaced PCIE extension cable with a shielded cable.
Have you tried connecting the card directly to the motherboard instead of using PCIe extension cables?
 

lukevetz

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I have not. As it is hard plumbed in in the vertical position it would take some plumbing rework. I still think its a power problem and draining the whole system, re-fitting pipe, re filling the system, testing the card without the extender, then draining and refilling again isn't something I'll have time for until at least next weekend anyways. GPU-z Shows the correct bus interface and the cable is 32GB/s shielded so I don't think that could be causing it.
 

Nichrome

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We have already seen PCIe extension causing all kinds of problems. That's why suggesting this.
As well as you could try your card in different PC.
 

lukevetz

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Yea. I don't exactly have a spare PC laying around, let alone one with a custom water loop that could run this card.

I am going to try and see if I can get the card plugged into a PCIe directly by plumbing in some soft tubing in a few weeks here. I still think its a power draw issue, but it will be good to check that variable off.
 

Nichrome

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I mean, even if the card is faulty, you'll need to disassemble your PC.
 

hatemali7155b02de

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Yea. I don't exactly have a spare PC laying around, let alone one with a custom water loop that could run this card.

I am going to try and see if I can get the card plugged into a PCIe directly by plumbing in some soft tubing in a few weeks here. I still think its a power draw issue, but it will be good to check that variable off.
I would say you will need to disassemble and RMA the card. I had similar issues with my 2080 SeaHawk X with the stock 120mm radiator, and I plugged it in directly to my PCI-E slot from an extension cable. That made no difference and I was still seeing horrible frame times, stuttering, and artifacts in any game I played. So now I am awaiting my RMA to get fixed, but man it sucks you have to do all that work to just get the card out...
 
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