Originally Posted by RobotDevil666;15354940
I went through all the steps like you said sadly to no avail.
First thing i noticed is even though i did driver sweep and reboot installation of 275.33 WHQL prompted me that newer versions of the files are already on my system , when i chose to overwrite them installation failed at PhysX driver.
I rebooted and installed it again , it installed fine this time but i got the same result as soon as i popped the 210 in.
I tried 280.26 with the same result.
I tried to install 210 first than add 590 no go .
What i noticed this time when i tried to "power through" boot with the 210 installed i get BSOD before login screen it says problem was with nvlddmkm.sys , i think it was machine check exception (not sure though).
No idea what to do now short of reinstalling the whole system.
Then you have 1 of 2 problems.
NVLDDMKM is 90% of the time a driver issue BUT, that 10% of the time it could be a bad card.
Considering your 590 is running solid, I'd make a bet that the 210 is faulty...However, you said the same issue is true of the 8800 so, that leaves me with 1 conclusion.
I'd almost bet that either 1) Your PCI slots are bad or 2) Your PCI slots aren't getting enough power.
What ALSO could be happening is that you have driver roots already integrated...This would require a fresh install then follow the steps I noted.
Make sure whatever you do, install the 590 FIRST, then the other card...It presets a master/slave sort of setup and that's your ultimate goal, really.
I know this works, I'm doing it and I know of @2 other members doing it as well...So, it's absolutely is possible...
If the windows reinstall doesn't work, it's definitely a card/board issue.