1080ti low performance

[G4te_Keep3r]

My pny 1080ti performs horrible (PNY GTX 1080 Ti Blower Gaming OC). Somewhere i have a folder of results from other benchmarks when i started looking into this, but since i have no idea where that folder is i can run other benchmarks if needed (windows 10 and ubuntu currently installed). Mining daggerhashimoto it gets ~8.5 mh (my 2 evga ftw3 1080ti each get ~32mh). About a year ago i pulled this card out of my server to troubleshoot but behavior is same on other computers are it was in server (got it for video transcoding mainly...but that is part of a whole different story). Attached are 2 superposition runs (performance went down after geforce driver update). For sanity check i took one of the evga cards and put it on this pc and score was ~16,000 (forgot to screenshot it).

 

Next logical step would be to update the bios/firmware, but i haven't had good luck finding verified versions for this card. According to nvidias tool, it is on the latest version so reinstalling that version should be the step to take but that is not an option their tool gave me.

 

I know i should have sold the card back when everything was crazy high...it was on my todo list but just never happened. Considering how much dead for parts cards were going for, one that works but not as well as it should would have been a decent payday (and gone into buying more exos drives).

 

I dont think it is a thermal issue, but i can go back and run a long furmark again if someone wants to know what it maxes out at. That being said, i have not replaced the thermal paste, but since it hasn't seemed to be overheating that didnt seems like a useful step.

[191x7]

Strange.

 

I would recommend cleaning it, replacing the paste, checking for damage (especially on the connector) and checking the clocks and PCI-E lanes it's using under load.

[DreamCat04]

2 hours ago, G4te_Keep3r said:

I dont think it is a thermal issue, but i can go back and run a long furmark again if someone wants to know what it maxes out at. That being said, i have not replaced the thermal paste, but since it hasn't seemed to be overheating that didnt seems like a useful step

To check that in a running benchmark, get MSI Afterburner. When set up correctly, this will show you your GPU's power draw, clocks and thermals in-game

[BetteBalterZen]

The GTX 1080 Ti I had was the Aero from MSI - also a blowerstyle. 

It ran perfectly fine but then some day gaming performance was literaly cut in half, like my FPS was lowered by ~50% and I was no longer able to watch 4K video files on my PC without it lagging out, making playback at around 5FPS. 

I went through multiple drivers, 3 formats of Windows, so many things, I was never able to fix it. I thought my 1080 Ti was dying. I then took it out of my PC to have a look at it, seeing if there was dust in the fan and honestly on the surface of the card and in the fan, there were like no dust at all, so I of course thought that dust wasn't the issue. Anyhow, I installed it again and took a look at temperatures and GPU temp was fine but the problem was still there, my performance was still cut in half. 

I ended up chatting directly with Nvidia support and they asked me to disassemble the card to look for dust even though I did say to them that GPU temp was fine and there were like no dust on the surface of the card or in the fan but of course, I did was Nvidia said, I disassembled the card and yup, in the middle of the heatsink a big chunk of dust was piling up. I blew it out and assembled the card again and then all performance issues were gone. 

My theory is that this chunk of dust made some sort of heatspot on the PCB that caused something to heavily throttle down. 

So yeah, yours being a blowerstyle too, I'd remove the plastic part so you can see the heatsink and then blow off any dust there might be stuck. 

[jaslion]

9 hours ago, BetteBalterZen said:

The GTX 1080 Ti I had was the Aero from MSI - also a blowerstyle. 

It ran perfectly fine but then some day gaming performance was literaly cut in half, like my FPS was lowered by ~50% and I was no longer able to watch 4K video files on my PC without it lagging out, making playback at around 5FPS. 

I went through multiple drivers, 3 formats of Windows, so many things, I was never able to fix it. I thought my 1080 Ti was dying. I then took it out of my PC to have a look at it, seeing if there was dust in the fan and honestly on the surface of the card and in the fan, there were like no dust at all, so I of course thought that dust wasn't the issue. Anyhow, I installed it again and took a look at temperatures and GPU temp was fine but the problem was still there, my performance was still cut in half. 

I ended up chatting directly with Nvidia support and they asked me to disassemble the card to look for dust even though I did say to them that GPU temp was fine and there were like no dust on the surface of the card or in the fan but of course, I did was Nvidia said, I disassembled the card and yup, in the middle of the heatsink a big chunk of dust was piling up. I blew it out and assembled the card again and then all performance issues were gone. 

My theory is that this chunk of dust made some sort of heatspot on the PCB that caused something to heavily throttle down. 

So yeah, yours being a blowerstyle too, I'd remove the plastic part so you can see the heatsink and then blow off any dust there might be stuck. 

This.

 

This has actually happened to me on multiple systems for people I fixed. I think the first time I saw this was on a hd 5870 crossfire system. Temps were warm but ok. But something was misbehaving severly. The dude was very hardcore in keeping his system clean but on a random google hunch I decided to take the cards apart.

 

In both 1/4 of the heatsink was blocked by a near identical dustblob. Cleaned that out + repaste and both cards started going well again.

[G4te_Keep3r]

I might need to replace the thermal pads too. Did take the plastic shroud off and am going to blow it out for a test since with fry's and radio shack gone I think the only place I can get replacement pads is online so will have to wait for shipping.

[G4te_Keep3r]

Main issue seems to be a power one. When there is no load on the card (including as soon as booted to desktop), card is at power limit. Increasing power limit didn't help. Neither did voltage or lowering core and memory. Set them all back to defaults as any overclock doesnt matter when performance is crap.