I have had a series of problem s previous to this one ,(see thread viewtopic.php?f=36&t=111940
)My specs, Windows XP Pro, MOBO Gigabyte GA M59SLI S5. CPU AMD 3 GIG 64, 4gigs Corsair DDR 2 RAM, video card ATI HD 4970 1 gig , Power supply PC power and Cooling 750 watt Sli I installed a new Seagate 1 TB hard drive. My machine was back up and running. Then about a week later I tried to start the machine and the main bios or start up screen never appeared, nor did I hear the alarm beeps that accompany the the start up. also the illuminated keyboard never lit up. I though perhaps the when I installed the new hard drive that I may have damaged a SA pin on the MOBO or loosened a power connector on the main hard drive. I took the video card out re installed it, checked the RAM modules, I did find a loose power cable to a hard drive, pressed it back in. Also during this non boot problem, I notice all the fans turn on the Video card fan works the optical drives light up on the front side momentarily, but a strange thing occurs sometimes with one of the fans , I am not sure which one but when I try and start it up, one of the fans turns a a very high RPM and makes a louder that usual noise, not a bearing noise but just a very high RPM like its on overdrive. I just get a no DVI signal on the screen. I have got in it to load several times them it worked for a week. thought I fixed it by messing with the cable wiggling them. Now after I turned it off one night, the next morning Kaput!
Could it be my Power supply or a video card, any ideas where to eliminate bad hardware step by step, Please look at the previous thread I posted a few weeks ago. on my hard drive dilemma prior to this, it may shed some light. viewtopic.php?f=36&t=111940