• Welcome to Overclockers Forums! Join us to reply in threads, receive reduced ads, and to customize your site experience!

Video Post Error with older GPU's on Newer Motherboards

Overclockers is supported by our readers. When you click a link to make a purchase, we may earn a commission. Learn More.

MaddMutt

Member
Joined
Jan 12, 2015
This main topic is about NVidia x2 video cards that refuse to post on x299/z390 motherboards with i9-10940x & i9-9900kf CPU. I have a EVGA x299 Dark & MSI z390 ACE - BUT - these same cards work on my ASUS x99/z270 motherboards with i7 5820k & i7-6700k. The video cards in question are the Geforce 9800 GX2, GTX-295, GTX-590, GTX-690. They will not post (MB error code for GPU) as primary display but will post if they are installed as secondary cards?
I have the - will only post as a secondary GPU - with some of my AMD/ATI HD-5870 (x3), HD-5850 (x2), and HD-5970. <- This is not so bad because the HD-5970 WILL CF with the HD-5870 BUT the NVidia x2's will not SLI with their basic version :-( They also work correctly when installed in an older motherboard?
Has anyone else had/have this problem with older GPU's and newer MB's?

Thank You For Your Time :thup:
 

magellan

Member
Joined
Jul 20, 2002
I couldn't get my old Radeon 6970 to boot on my x99 'board until I manually set the PCIe slot to 2.0.