Had a fully operational and fine system...
Motherboard: ECS NF 650iSLIT-A
CPU: Core2 Duo E6320 1.86ghz
Video Card: 8800GT
Sound Card: RealTek
Memory: 1GB Crucial
Monitor: 22" Samsung Syncmaster WS
Then decided to upgrade from the E6320 cpu to a Intel Core 2 Duo E8500 (3.16GHz) Socket 775 Wolfdale 1333FSB 6MB L2 Cache cpu....
This SHOULD be compatible with my motherboard....but...Que problems, upon booting up my system with the new cpu in place all fans working fine and everything looks like its working, except theres no monitor output, no bios, no post beeps, no nothing! Ive tried EVERYTHING, including checking the ram & gfx card by re-seating them, reseating the cpu and heatsink a variety of different ways, and also just running just the cpu on its own gives me no error beeps. Ive flashed the CMOS with no avail and the only thing i havent done is updated the bios or tried my old cpu back in, as i cant (old cpu is at my brothers house other side of the country). Is there any REAL chance of this being a DOA cpu??? Or could it be something else?