Here is what I mean by bent pins
https://www.youtube.com/watch?v=EdDccsbv5hA
HELP! I can't get octane to use all 3 of my gpus
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and another one
https://www.youtube.com/watch?v=mhOYEQ65a94
https://www.youtube.com/watch?v=mhOYEQ65a94
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- abstractmedia
- Posts: 71
- Joined: Sat Jul 13, 2013 6:12 pm
Ok so I tried placing the cards in different slots and basically what I expected to happen, happened. Each card is functioning just fine and up to 2 cards everything is great, its just when I have a third card that it gets weird. Even when I have all 3 cards in, I can manually turn each card on by itself using nvidia control panel and each one will run in octane perfectly fine. It's simply that they wont all work at the same time. I did have something else change however, when I have the cards in the top three slots (keep in mind they cover some because of the double width), the top and middle card are the default. When I moved the bottom card down a slot, the top and bottom card became the default. I'm not sure what that means, but it did change something up. I re-ran all of the power cables and hooked up the 4-pin EZ Plug for an extra 12v of power to the mobo but it didn't help either.
It seems something is wrong with PCIE lanes. Do you have a chance to test your gpus on another motherboard?
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- Seekerfinder
- Posts: 1600
- Joined: Tue Jan 04, 2011 11:34 am
Smicha,smicha wrote:If you insert a gpu into the lowest pcie slot you'll not be able to connect usb cables (crossed). If you still encounter your problem - make sure your cpu socket and its pins are not bent.
You mean the 8-pin CPU power conector on the motherboard, not the actual CPU socket, correct?
Seeker
Win 8(64) | P9X79-E WS | i7-3930K | 32GB | GTX Titan & GTX 780Ti | SketchUP | Revit | Beta tester for Revit & Sketchup plugins for Octane
I meant a socket itself, something like thisSeekerfinder wrote:Smicha,smicha wrote:If you insert a gpu into the lowest pcie slot you'll not be able to connect usb cables (crossed). If you still encounter your problem - make sure your cpu socket and its pins are not bent.
You mean the 8-pin CPU power conector on the motherboard, not the actual CPU socket, correct?
Seeker
https://www.youtube.com/watch?v=EdDccsbv5hA
but sure, checking all cables is a must.
If I were in abstractmedia shoes I would: 1. check a socket and cpu, 2. test another motherboard, 3. test another psu
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@ OP
Can you check what happens when playing a game? I use MSI afterburner to check temps and usage of the gpus.
Can you check what happens when playing a game? I use MSI afterburner to check temps and usage of the gpus.
Octane 2022.1.1 nv535.98
x201t - gtx580 - egpu ec
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x201t - gtx580 - egpu ec
Dell G5 - 16GB - dgpu GTX1060 - TB3 egpu @ 1060 / RTX 4090
Octane Render experiments - ♩ ♪ ♫ ♬
- abstractmedia
- Posts: 71
- Joined: Sat Jul 13, 2013 6:12 pm
Ya I've tested these GPU's on other boards and they're just fine. They work just fine on my board too just not at the same time, so it seems like something may be wrong with the PCIE lanes like you mentioned. I tried different gpu's in this set up on my machine as well and got the same outcome.
So it's time to RMA your motherboard.
3090, Titan, Quadro, Xeon Scalable Supermicro, 768GB RAM; Sketchup Pro, Classical Architecture.
Custom alloy powder coated laser cut cases, Autodesk metal-sheet 3D modelling.
build-log http://render.otoy.com/forum/viewtopic.php?f=9&t=42540
Custom alloy powder coated laser cut cases, Autodesk metal-sheet 3D modelling.
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ok, maybe You done that already, but just mention incase for any reason You haven't..- restore everything to defaults in bios/uefi - maybe (just maybe) some allocation of PCIe lanes were changed..(I know some models have a feature to "switch lanes" between PCIe slots..-as it's more wired than available..). as last resort update uefi..abstractmedia wrote:Ya I've tested these GPU's on other boards and they're just fine. They work just fine on my board too just not at the same time, so it seems like something may be wrong with the PCIE lanes like you mentioned. I tried different gpu's in this set up on my machine as well and got the same outcome.
if that doesn't help, I guess this is the best advice..
smicha wrote:So it's time to RMA your motherboard.