Replaced pci graphics and installed 500w power supply 18 months ago, had no problems till six months ago when i started to get, NO video Input on my monitor, switched to the built in graphics and worked fine.
3months ago i switched on pc and same thing, no input on monitor again, all lights and most of the fans came on, the usb wireless keybord/mouse (SENDER?) didnt come on either.
Since then i sometimes have to switch the pc on and off between 1 and 100s of times before i get a picture on my screen, which also coincides with my usb wireless/keyboard sender firing up too.
Today i had no luck so once again i went through the process of pulling out all leads and cables giving them all a clean and putting back together. No luck.
Well as you can see ive got the Pc going, but only after leaving out the detachable 4 pin of my 20+4 power supply. i dont know if this is just an unhappy coincidence. (I assume this is safe)
I dont want to turn off the PC now just incase it wont start, and one of you genius guys sends me a post solving my problems.