1. Yes, fan on new PSU starts happily. 2. No odd smells. 3. Old PSU had a rating of 300W, new has a rating of 400W 4. It's 220V only (no switch, and sticker where the 110V/220V switch would have been) 5. Yes, fan still starts. 6. Tried with two different power cables. 7. Fuse isn't blown. 8. Connectors all looked okay. 9. Haven't tried this yet - will this evening. 10. No change. 11. No change.
The behaviour I see is this. When booting from cold (after power has been switched off at mains), the machine begins to start up (PSU fan starts and I see the bios screen briefly), then shuts down (before getting past the bios screen, PSU fan stops). Machine then restarts (PSU fan comes on again), but it doesn't get to the bios screen again (no output from graphics card, but some peripherals are powered - tray eject on the DVD drive works, for example).
When warm booting, all I see is the second state.
Switching back to the old PSU (which worked, bar the duff fan) makes no difference.
So, all I can think is that I've managed to kill the motherboard.
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zvi and
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Date: 2007-04-02 12:48 pm (UTC)1. Yes, fan on new PSU starts happily.
2. No odd smells.
3. Old PSU had a rating of 300W, new has a rating of 400W
4. It's 220V only (no switch, and sticker where the 110V/220V switch would have been)
5. Yes, fan still starts.
6. Tried with two different power cables.
7. Fuse isn't blown.
8. Connectors all looked okay.
9. Haven't tried this yet - will this evening.
10. No change.
11. No change.
The behaviour I see is this. When booting from cold (after power has been switched off at mains), the machine begins to start up (PSU fan starts and I see the bios screen briefly), then shuts down (before getting past the bios screen, PSU fan stops). Machine then restarts (PSU fan comes on again), but it doesn't get to the bios screen again (no output from graphics card, but some peripherals are powered - tray eject on the DVD drive works, for example).
When warm booting, all I see is the second state.
Switching back to the old PSU (which worked, bar the duff fan) makes no difference.
So, all I can think is that I've managed to kill the motherboard.