No POST Radeon 5870

[ribbens]

Hi everyone,

I just bought and installed a Radeon 5870, and as soon as I did I got no POST. I returned it and installed a new one - same thing. I upgraged the psu to a 1200W, and that didn't help. I'd like to tell you exactly what mobo and cpu I'm using, but the (insert expletive here) people at frys are holding my computer hostage. I believe the mobo is an ASUS (about 3 years old) and an Intel Dual Core 2.66Ghz processor.

If I put in an older gpu everything works fine. Any thoughts? I'm stumped.

 

[cmichael138]

Does the 5870 have the two 6 pin power connectors?

 

[ribbens]

Yes, and both were plugged in. The card appears to have enough power because when both 6-pins are connected the fan runs, but if only one is connected the computer beeps angrily.

 

[thegeeesta]

sounds like a DOA

 

[ribbens]

That's what I thought at first, too. But after returning the first 5870 and installing the new one (I'm 100% certain I'm installing it correctly) with the same no POST phenotype . . . It seems unlikely that lightning would strike the same girl twice.

I'm beginning to suspect that if my mobo isn't underpar, it's precariously close. Sigh . . .

 

[wa1]

then try your card on different computer(make sure it has an enough power).
Id the result is the same then it probably your mobo...