had/going thru similar thing. (Strange). I got frustrated and set the pc to the side for about 6 months. Got it out last night and re-inserted ram sticks.(I left them out when I became frustrated.) low and behold the thing booted up to windows fine!. Maybe it is a bad ram stick? It did start running the hard drive VERY FAST so I am at troubleshooting mode again. It all began with a newer pc, about 6 months old since refurb. I was cleaning it and when I removed the cowl over cpu and removed heatsink it took cpu with it. I spread thermal paste on cpu and followed directions for replacing it. No dice...beep codes and # codes. I assume it is the thermal paste not spread properly but have no idea why it waited 5-6 months b/4 it decided to boot again. BUT , now my hard drive is running wide open it seems so I am going to take cpu out again and do a to the letter application of thermal paste and hope that is the problem. It did run fine for about fifteen minutes then the infernal whining of the hard drive. I hope maybe some of this related to others posts, and now I am on a search to find where the small tube of thermal paste is:( Good luck my friends. (it's live and learn with these p.c.'s
Hi, have you checked your power supply voltages?
Have you tried disconnecting everything except the RAM and the monitor and see what happens on startup i.e no HDD ODD etc?
- de jayeff