New CPU, won't POST

[VivienM]

Hi guys,

I swapped a shiny new Q8300 for an E5200 on an Asus P5QL-E, and now it won't POST. I hit the power button, the fans/HDs spin up, but the monitor never leaves power saving mode. No beeps, no anything.

Any thoughts?

 

[VivienM]

I took the CPU out, put it back in, and now it seems to work... (and I'm sure my cooling will suck because I didn't apply new thermal compound. Argh)