Power Surge forcing restarts after recent breaker trip

Clay Thuernagle

Honorable
Aug 22, 2013
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10,510
I know there are a ton of threads on this topic and I have read almost all of them. The reason my issue seems unique is that most responses are for new builds that are a week old and are getting the asus surge protection warning after restart. My system has been up and stable for 16 months now with 0 hickups. My system atm is: Asus Sabertooth Z77 Intel 3570k, gskill memory, Samsung 830 SSD, 2x Evga gtx 560ti, Corsair TX750M. That covers the important stuff. The problem: I had a breaker trip the other day and now my pc restarts by itself. It hasn't done that without me restarting it myself since I built it. I am getting no BSOD just a clean restart with no messages. I did notice I was running an older bios and reset bios defaults, cleared cmos and updated to 2003. Now when it restarts by itself I get an error about Asus protecting my hardware etc. from improper voltage regulations. The problem is so strange because sometimes I can play a game and use my system for hours and then the simplest thing as changing a new tab in chrome will force the reboot. Sometimes i dont even run anything and it reboots. I have run prime95 to test memory. It passed 4 passes with 0 errors. The system is water cooled and CPU and GPU are both running at 28 C with no load and 58 C with max load. Again I have had 0 errors or restarts since I built the system - it has literally been up for 16 months with no errors. Since the breaker trip now it does the restart thing. I have RMA'd the PSU and am waiting. Am I headed in the right direction or could it be something else. Thanks
 
Solution
Although the PSU is the likely suspect here, you might also check that your CMOS battery is producing 3v and replacing it if it is not. I'm thinking the PSU but do check the battery also