said by asdfdfdfdfdf:Im assuming that the system worked properly before the replacement? Did the previous psu fail or did you just choose to replace it?
Thank you both very much for responding. The other day the system was completely dead.
First thing I checked the power supply with a tester. Got nothing.
Since I don't always trust those, I used the Fluke and found PSU dead.
That's when I changed the PSU to the Corsair. Up until then, system worked perfectly.
Opened up the PSU (yeah, I know but that's just me) and found it burned up.
Bless the old Enermax PSU's... the fuse blew and protected us.
Since the system works perfectly every other way, I don't think the MB is effected, but I could be wrong.
The connectors are correct (been doing this awhile..."Ironworking" was always my main focus).
said by asdfdfdfdfdf: Could you explain the behavior in more detail. Do you mean that if you initiate a soft shutdown in windows the machine turns off and then immediately turns on again.
YES, exactly. It doesn't matter if shut down from command line or GUI. It just immediately shuts down and actually powers back on and reboots.
It doesn't shut down unexpectantly. The problem is powering back on and rebooting.
I use this system remotely and so this is a HUGE problem. Locally I can simply reboot into my boot manager and shut off directly from pwr button. Remotely that isn't an option.
said by asdfdfdfdfdf: Also you didn't remove a jumper from some previous troubleshooting and forget to return it to its normal position did you?
Negative. Didn't touch it. Just tried turning it on and it was dead.
Concerning bbear2's excellent questions:
No problems booting or using system at all. Lots going on in that system and everything working perfectly other than this problem.
Tried shutting down from command line, GUI (various ways like ctrl-alt-delete etc) and remotely.
Checked switch and it's fine.
No hibernate, no sleep or standby mode. That's all disabled...haven't tried that because I never use.
I pray I'm not forced to go that route. We don't do "Auto Updates" here, EVER.
Again, lots going on in that old system. The reason we know it is actually powering off before immediately restarting:
I use CRU Dataport removable drive system and boot multiple drives\OS's. The system emits a beep when powering on. It beeps immediately after shutting down.
The same problem exists with ALL drives.
Main drive is IDE with that CRU system. 2 Internal storage drives are SATA and individually controlled by 'matrix' power switch. They remain powered off when not needed.
Again, everything is working perfectly other than this problem. Have some other cards in there as well:
1. Hauppauge TV card (WinTV-PVR-350).
2. Creative Audigy 4 Pro
3. Two NICs (one on board and one older Linky we use for main connection. On board handles the WOL because old Linky won't).
4. Has an amazing old NewQ DSP which really doesn't effect the system at all.
5. Many moons ago - I switched it to a newer KVM that required USB keyboard. I noted BIOS event errors referring to keyboard which makes me think I should reset the board.
I'm going to check my other ASUS to see if those errors come up. Never had a problem (I never check those logs if everything works).
Only other things are an older rock solid ATI Radeon 95xx video card, USB hub & older Antec 900 case holds it all together.
Thanks again for your help!