Well, I've been having this problem for a while now. I have a Dell GX110 PC that I've been preparing for a friend (I had previously given him an old Pentium 133MHz with Win98 on it
), but if I shut it down and try to turn it on again (doesn't matter how long or short, it still does this) its yellow power light blinks at me. The only solution I've found is to unplug it/switch it off/remove the CMOS battery and just leave it there for a bit.
I googled a bit and found it's either the PSU is dead, or something's going on with the RAM/VGA. Right now I can't replace the PSU, as it's a propietary design and apparently costs around $50-$100. I've checked the video plugs and everything seems fine. The RAM I can't really test, as I've only got one stick of PC100 (yes, it's old) spare, and I'm not even sure it works. I also don't have any floppies or CDs to put Memtest86 on.
Specs:
866MHz Pentium III
8/32MB* Intel Graphics controller w/ IBM P50
6GB Seagate HDD
Windows XP Pro SP2
*before SP2/after SP2. I'm not sure what to make of this. Windows bug?
Any ideas?