Overclock.net › Forums › Graphics Cards › NVIDIA › GPU help requested please.
New Posts  All Forums:Forum Nav:

GPU help requested please.

post #1 of 2
Thread Starter 
This could get long. I have a 980ti hybrid. Got a second one yesterday for VERY cheap. New in sealed box.

Uninstalled NVidia drivers and put in new card. MOBO is a Z77 Asrock OC Formula. 850 watt OCZ ZX power supply with 4 PCIE 6/2 cables.

Upon boot up windows is not seeing the second card in device manager. BTW 10 months ago I was running 970's in SLI on the same hardware but I cannot remember whether that was Win 7 or Win 10 (Fresh install not upgrade path).

Here is what I did to trouble shoot. Canned air to see if something got in the pcie slot. Uplugged!

In the second slot the card DOES get power. Led's, fan, AIO fan and pump all run.

Reversed cards. Both cards work in top slot while neither is seen in device manager in second slot. Uninstalled drivers and ran DDU. Inserted cards booted to basic VGA driver and then installed Nvidia driversn no go. Tried this with one card and both. My mobo has a physical switch to turn off/on the pcie slot. It is on or else the card would not get power at all. In bios changed back and forth from gen 3 and auto. Ran the 970's last year on Gen 3.

Put both cards in second slot leaving top empty and no go. I get 4 or five quick beeps from bios that I think is no VGA detected but I am not sure. Tried 2 or 3 versions of Nvidia drivers no go.

Changed the PCIE cables from the card in top slot to bottom slot - no go.

Here are the things I have NOT tried because I got too tired.

Tried a little canned air into the slot to see if something got in there from the last 10 months of non use.

Tried the second card in the bottom (3rd) pcie slot after removing usb cables etc. This would only run at 4x but I at could see if it would show up in device manager. Should of done that quicker but my brain was foggy as I was frustrated and very tired.

When I installed Win 10 I did not install any chipset drivers as the Asrock website still showed old stuff and Windows looked like it put in the correct stuff. Besides this issue my pc runs great. I5 3570 at 4.2, 16 gigs ram, SoundBlaster Z in PCIE 1x slot above pcie slot 1. Bios is newest version.

Remember, I did have 970's in SLI using the exact same hardware until last October when I got the first 980ti. I did uninstall the drivers when I switched.

Sidenote: Years ago I remember having to go into the registry to delete some device ID stuff because I could not get a new GPU working on the second slot. Maybe 7950's after my 5970 but I cannot remember. Any thoughts on this!

I am at work till 5:30 CST in U.S before I can try any other fixes. First thing is 3rd pcie slot to see if slot 2 went bad. Weird since it was good a year ago.

I am very sorry that this took so long but I wanted to give as much information as I could so that the first 5 posts are not try this and try that when I already did.

IF the 3rd slot works in device manager I assume slot 2 is bad unless it is some weird registry device conflict I mentioned before.

I really do not want to reinstall windows but it is on ssd so it should not be to bad. I would go bonkers if I did a reinstall and it still did not work.

If the card gets power and looks like it works would the slot be bad????

Thanks for any ideas.
Edited by stangflyer - 8/31/16 at 11:41am
post #2 of 2
Thread Starter 
Wow! not one reply! Thats ok I put the same post on another tech forum and got assistance. The assistance did not work but at least they made an effort. I spent 10 hours on this problem but fixed it 1:30 am last night.

I know many people would say my post was way to long to read but I wanted to put in as much information as I could so I did not have 10 posts of change pcie slot, do this or do that when I already had done them.

I am 52 yrs old and the fix was something I have not seen in my 25 years of pc gaming, and working on pc's.

10 hours of sleep total in last 2 night = tired and crabby.
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: NVIDIA
Overclock.net › Forums › Graphics Cards › NVIDIA › GPU help requested please.