I decided to upgrade my generic 300W PSU to an Enermax Whisper 431W. My computer was working fine before I put the new PSU in, but when I tried to boot up after the new one was in, it wouldn't boot. All the fans spin up, the drive lights come on, the keyboard lights blink, but nothing else happens. Nothing shows up on the monitor and there are no beeps at all. Here's my system and what I've tried to do:
Athlon XP 1900+, Shuttle AK-31 rev. 3.1, Visiontek GeForce3 Ti 500, 512MB Corsair PC2400 RAM, Philips Acoustic Edge
1) Made sure video card was seated correctly
2) Removed video card and reinserted it
3) Checked to make sure that all power connectors were plugged in to the drives
4) Tried a different video card
5) Removed all other cards except the video card and my Promise RAID card
6) Same as #4, but removed the RAID card
7) Tried booting with one DIMM instead of two
8) Reset the BIOS
None of the things listed had any noticeable effect on what happens. This happened once before, when I upgraded the CPU from an Athlon C to the current Athlon XP. However, after a couple of reboots it started working. That hasn't happened this time. I'm out of ideas. It's not giving me any error codes, so I don't know what to make of it. It never gets to the BIOS, since nothing ever comes up on screen. I don't think the CPU or video card is bad, since everything was working right before I put the new PSU in. My guess is that there's something screwy with the motherboard, but I don't know for sure. Any constructive thoughts or ideas would be appreciated.
<i>Real knowledge is to know the extent of one's ignorance.</i>
Athlon XP 1900+, Shuttle AK-31 rev. 3.1, Visiontek GeForce3 Ti 500, 512MB Corsair PC2400 RAM, Philips Acoustic Edge
1) Made sure video card was seated correctly
2) Removed video card and reinserted it
3) Checked to make sure that all power connectors were plugged in to the drives
4) Tried a different video card
5) Removed all other cards except the video card and my Promise RAID card
6) Same as #4, but removed the RAID card
7) Tried booting with one DIMM instead of two
8) Reset the BIOS
None of the things listed had any noticeable effect on what happens. This happened once before, when I upgraded the CPU from an Athlon C to the current Athlon XP. However, after a couple of reboots it started working. That hasn't happened this time. I'm out of ideas. It's not giving me any error codes, so I don't know what to make of it. It never gets to the BIOS, since nothing ever comes up on screen. I don't think the CPU or video card is bad, since everything was working right before I put the new PSU in. My guess is that there's something screwy with the motherboard, but I don't know for sure. Any constructive thoughts or ideas would be appreciated.
<i>Real knowledge is to know the extent of one's ignorance.</i>