mumra Posted October 24, 2008 Share Posted October 24, 2008 Got my TX650 today, installed it, powered everything right up, no problems. Then I tried to shutdown my PC. Everything was fine, except that as soon as the TX650 turned off, it turned right back on and rebooted my PC, like a reset except with a pause between when the PC shut down and when it started back up. Even the power button on my case wouldn't power it down (same thing happened, even during the BIOS). To turn it off, I had to switch it off in the back of the unit. Checked BIOS settings, nothing weird. Thought I might have a short in the power switch, but I disconnected the power switch and reset switch while in Vista (probably not a great idea, but nothing exploded), then tried shutting down, and the damn thing rebooted again. I tried shutting down using the power button again, but no dice. So I hooked up my old power supply, and guess what? It worked fine; shutdown worked with no problem. What on earth could cause such strange behavior? The power supply is perfect in every other way. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 24, 2008 Corsair Employees Share Posted October 24, 2008 The PSU needs to get a signal from the motherboard in order to turn on or off. I would recommend that you make sure you have the latest BIOS for the board, load setup defaults (with the TX650 installed) and see if you still have the same problem. Link to comment Share on other sites More sharing options...
mumra Posted October 24, 2008 Author Share Posted October 24, 2008 I apologize for not being clearer in my original post. I should have said that the TX650 won't STAY shutdown. It does shutdown, but then it starts right back up again. This happens even if I press the power button, start posting, then hold it down. It shuts down, then starts up immediately. If it were a motherboard problem, this would have happened with my old power supply, which it does not. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 24, 2008 Corsair Employees Share Posted October 24, 2008 The PSU can not turn itself on. Two pins on the 24-pin connector must be bridged in order for the PSU to power itself on, for some reason the motherboard is telling the PSU to turn itself back on. What is the make and model of your other PSU? Its possible that its a different ATX12v spec and that could effect how the motherboard reacts to it with the current BIOS rev. If possible I would test the Corsair PSU in a different system to see if you have similar results. If you do, then we would want to replace the PSU for you. Link to comment Share on other sites More sharing options...
mumra Posted October 24, 2008 Author Share Posted October 24, 2008 Wow, you were right! I put the TX650 into my old system, and no problems with shutting down. I still don't understand why my old power supply doesn't have the shutdown problem, but I plan on replacing the mobo immediately. Good to know that Corsair wasn't to blame. I was starting to think the worst... Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 24, 2008 Corsair Employees Share Posted October 24, 2008 Wow, you were right! I put the TX650 into my old system, and no problems with shutting down. I still don't understand why my old power supply doesn't have the shutdown problem, but I plan on replacing the mobo immediately. Good to know that Corsair wasn't to blame. I was starting to think the worst... I would try updating the BIOS before replacing the board altogether. There are different specs for PSUs and if you have an older board, you may be able to resolve this bug with a BIOS update. Link to comment Share on other sites More sharing options...
mumra Posted October 27, 2008 Author Share Posted October 27, 2008 I've updated the BIOS, but nothing changed. I did figure out the problem. My D-Link DWA-556 PCI-E card is the cause. If it's plugged in, I have the rebooting problem. If it's unplugged, everything works fine. I don't even have to have drivers installed. I can actually start the PC by plugging in the card! Crazy. Link to comment Share on other sites More sharing options...
Corsair Employees RAM GUY Posted October 27, 2008 Corsair Employees Share Posted October 27, 2008 That is strange indeed, glad to hear you were able to isolate the issue! Link to comment Share on other sites More sharing options...
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