GTX 480 will only display after CMOS reset?

[Craterloads]

Getting a little annoying now as mobo doesn't have a reset button and I keep having to take battery out every time I start PC. Card works flawlessly once it displays.

I can confirm rest of system works fine with different card. Have updated motherboard bios and installed latest drivers. I7 920, 6gb, asus p6t deluxe, 500w seasonic.

Gtx 480 is a palit reference model. Any ideas?

Was thinking of flashing card bios to evga/asus stock bios?

 

[ALXAndy]

What motherboard are you running?

Update the bios if you can. I had the same issue with a Foxconn X58 board.

 

[Craterloads]

Asus p6t deluxe, latest bios installed

 

[subbytna]

Is the 500w sufficient for your setup? Given the GTX480....

What brand is it?

 

[Craterloads]

Is the 500w sufficient for your setup? Given the GTX480....

What brand is it?

Seasonic, so pretty much the best.

Plus like I said works fine once CMOS is reset. I've got a bequiet 650w gold kicking about so will try it with that

 

[Craterloads]

Ok, i think it might be the motherboard as has done the same thing with my backup card.

Ive also tried with the 650w power supply and has made no difference.

Motherboard bios is the latest 1202

Any ideas on how to best isolate the problem, without going out and buying another board?

 

[ALXAndy]

Check for loose connections, esp the 8 pin EPS and 24 pin ATX. Check your memory is seated correctly ETC ETC..

IE just pull everything out and then put it back in properly.