I just placed in a brand new PSU and it's a 650W and more then what the system needs. The fans turn on but I don't get anything on the monitor. Ideas?
No beeps. I can't tell if hard drive is running the CPU fan is running at full speed.
EDIT: Could the motherboard have gone bad? It used to work. Could it be possible to flash the BIOS or something?
UPDATE:
SYSTEM http://h10025.www1.hp.com/ewfrf/wc/document?cc=us&lc=en&docname=c01466472
New power supply: http://www.newegg.com/Product/Product.aspx?Item=N82E16817339012