ZergHost Posted May 21, 2014 Share Posted May 21, 2014 Hi, So this is my second time posting on the Corsair forums, and I have another issue with my HX850 PSU. During graphics intensive processes, like rendering 3D video or gaming, my computer randomly shuts off. In order to get it to restart, I need to manually toggle the I/O on the back. Is this a PSU problem? I have already checked most of the other components. RAM - Memtest86+ - No errors found CPU - Prime95 - 10 Hour burn in at 45C, stable Graphics card - Traded with a friend, worked like a charm on his build SSD - I don't know how to test this one Any help would be appreciated! Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted May 21, 2014 Corsair Employees Share Posted May 21, 2014 If you have to toggle the switch on the back of the PSU to get the system to come back up, then the problem is definitely the PSU. Link to comment Share on other sites More sharing options...
ZergHost Posted May 21, 2014 Author Share Posted May 21, 2014 That's what I am thinking as well, but this is a relatively new phenomenon. I have gamed (BF4) on it before without any problems... Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted May 21, 2014 Corsair Employees Share Posted May 21, 2014 Well.. the only reason the PSU should "latch" (requiring the power cycle via switch) would be if one of the protections kick in. Of course, there could be something on the motherboard causing the problem and by cutting the power on the back, you're cutting the +5VSB to the board. We can troubleshoot it this way...... Next time it happens, DO NOT flip the switch on the back of the PSU. Leave the PSU "on" and just unplug the 24-pin from the motherboard. Wait a few minutes and then plug it back in. If the PC starts back up after doing this, then the problem probably isn't the PSU at all. Link to comment Share on other sites More sharing options...
ZergHost Posted May 21, 2014 Author Share Posted May 21, 2014 Alright it happened again, this time in Photoshop. I did what you said (pull out the 24 pin, let sit for 5 mins, replug) and nothing happened. Still needed to flip the I/O Link to comment Share on other sites More sharing options...
Corsair Employees jonnyguru Posted May 21, 2014 Corsair Employees Share Posted May 21, 2014 PSU problem. Sorry. :( Link to comment Share on other sites More sharing options...
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