Power Supply DOA?

[Mad_hatter]

I purchased a Corsair 650w as it was recommended for the EVGA 550 ti replacement graphics card I bought. (Last graphics card died, black screen and monitor was amber)

Now the old 375w power supply works, I tested it after trying the new Corsair 650w and the computer tower shows green but it did beep a few times.

I tried the paper clip test on the NEW PS and it seemed fine but when I hook it into the computer, the fan doesn't even spin. The tower blinks amber. Even if the Mother board is incompatible, shouldn't the fan spin?

I also hear that the paper clip test isn't always accurate, that it gives false positives?


Specs for my xps 410 are.

http://gdgt.com/dell/xps/410/specs/

CPU model E6300
One seagate driver
Media center edition