Question GPU isn't being detected by the motherboard

[chris.weii]

So I'm building a retro gaming PC for fun. Specs are listed below:

• Asus P8H67M-Pro
• EVGA GTX 550 Ti 2GB
• i5-2500S
• 4x4GB DDR3 1333mhz SK Hynix
• 320GB HDD
• 480W Logysis PSU
• Asus Essentio PC Case

The problem is the MoBo isn't detecting the GPU. I've double checked both components, putting the GTX 550 Ti into a Gigabyte B85M and used pairing the P8H67M with a GTX 960 4GB. The GTX 550 Ti had display out and the motherboard could detect the GTX 960 4GB. But when I put the 550 + 67M, I get no display out, SysInfo doesn't even see it. BIOS has been flashed to the newest version.

I'm not sure what's going on. Any tips?

 

[helpstar]

install the 550ti, reset the bios, eventually replace the bios battery, connect the video cable to the 550, power on

which bios version is installed? 3904?

 

[chris.weii]

install the 550ti, reset the bios, eventually replace the bios battery, connect the video cable to the 550, power on

which bios version is installed? 3904?

Yeah, BIOS v3904. I can't seem to find the Reset BIOS Setting option, but I did reseat the CMOS battery. Nothing happened

 

[helpstar]

most likely it's an incompatibility problem.
you could try a 3rd gen Intel CPU

reset the bios by jumper