Yeap, i was going to mention updating your BIOS, The Mobo can handle the Latest Graphics Card, just needs to be trained to, i had a similar issue with my mobo when trying to install a new CPU, wouldn't recognise the CPU at all (turned on, then off, continously), i updated the BIOS and presto, new CPU works like a charm....
im happy to hear your Card is working fine now, gl with it Multibocks
Connect With Us