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Solve : Games/ OCCT PSU test rebooting PC ( PSU Problem?)? |
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Answer» As the title says my PC started rebooting during games, and after running many stress tests and following suggestions, I finally found a WAY to replicate the problem. When I run OCCT PSU stress test, my PC reboots within a second. It was unexpected since running Prime 95 together with Furmark didn't cause any reboots. ... Anyway, do you think the issue is my PSU (corsair hx750w)?...Yes, unless you have a way to prove the PSU is working normal. Do you have any basic tools like a digital voltmeter and some material from an old electric heater? The wire in the heater can be used as a load to test the PSU. What is the rating for: 3 volt lines 5 volt lines. 12 volt lines I found this: Quote 100 - 240 V 47 - 63 HzThat would be about 80 watts plus 125 watts plus 744 watts. Build a resistor with 0.12 ohs ( for the 3 volt line) 2.5 ohms (for the 5 volt line 2.0 ohms (for the 12 volt line) Be careful! the wire will get real hot. All you need is for the PSU to hold on for three seconds. When you go over 750 watts the PSU should kick out by the thermal overload semspr. Check to see if the PSU fan is running slow. Easy fix. If this scares you, find a friend who understands this. EDIT: This information explains how to use Nichrome Wire. http://cecs.wright.edu/balloon/images/2/22/Nichrome_Wire_Heating_Element_Design_Basics.pdf The wire will fail at currents above 15 amps for more than a few seconds. So you have to use four or five wires together to lower the current in each wire. Or have some kind of ceramic core to dissipation heat.Please do not do what is described above, it is dangerous and should not be advised here. What you really need to do is find a known working PSU and try that instead. Also BEAR on mind that the Corsair HX series have a very long warranty period so it is more than likely that yours is still covered should you need a replacement. Camerongraym You are right. I went too far. Direct substitution is by for the safe ans sane why to test. Extreme electronic testing should only be done by people who have been trained the kind of stuff. You could get hurt very badly. And you need a workplace. Image from http://gtri.gatech.edu/facilities Just trying to help... Sorry, for not replying before . I created this topic in multiple forums to increase chances of getting a response and stopped following this forum by mistake apparently. I will definitely bookmark this right now, so it won't happen again. I am an electronics engineer, though we never were assigned to work with anything that could hurt us. So I am not sure I want to test the PSU myself, as Corsair already approved my RMA but I want to avoid wasting time and money to send it abroad (not available in my country ) if possible. The voltage readings are within 5% according to software, but if you think they don't have enough resolution I can actually measure with a multimeter. I thought the issue was resolved 10 days ago after I reassambled the PC, and changed PSU sockets and connectors with spare ones. Also bought a new surge protection extension lead. Didn't know which was causing the reboots, but it stopped rebooting as soon as I started running OCCT, and the games seemed to work fine in my limited testing. I got my new MSI gtx 970 gaming 4g 3 days ago, run some benchmarks (Heaven Unigine) etc. to make sure it works. But when I tried playing Star Wars battlefront today, my pc seems to reboot occasionally during game menus but never during the actual gameplay. I monitor CPU and GPU temps and they are always below 60 C. I read my graphics card may cause instability while transitioning from load to idle due to sudden voltage drops but it shouldn't result in a reboot as far as I know. ( https://forums.geforce.com/default/topic/784294/geforce-900-series/boost-feature-causes-gtx-970-980-instability-in-low-utilisation-situations/2/ ) I just started playing witcher 3 to see what fps I will get, now I will try actually playing the game to see if I get reboots in this game as well, and update this thread. Weirdly I am now suspecting my CPU may be causing the reboots. I was reverting every change I MADE since the PC seemed to work last, and one of them was reducing CPU cooler (Themaltake FRIO) fans from 100% to %70ish. I thought this was okay as CPU core and GPU temps were always below 65 in games with the new 70% setting. But after recent reboots there were some kernel power events with "thermalzone" in their description in the event viewer. Anyway I increase the CPU fans to 100% again, and haven't got any reboots within an hour. Of cource if I try OC ing the GPU again, I get reboots within minutes. ( CPU overclock is fine though) Could it be that increasing GPU power usage cause fluctuations in the CPU voltage and increase the CPU package temperature which is casuing reboots? I forgot to put the washers between the cooler and the motherboard while installing the CPU cooler. It was without the washers since I had the PC, and the temperatures seemed fine, so I thought they were not really necessary. Next reboot I get, I am reinstalling the cooler and putting the washers. Personally i'd walk away from OC'ing...not worth the estimated 10-12% performance increase for all the headaches... Just my thoughts...Now I also have to use the CPU cooler at max settings apperantly. Or at least 70% isn't enough, and FRIO is insanely loud above 1800rpm. Beats not being able to play at all I guess.It probably was the Cstates. Enabled c1e and disabled c3e and c6e. No reboots so far. Guess I shouldn't have trusted the guides, some even official, saying I should enable c1e and leave others at auto. The latest BIOS had one of c3e and c6e at disabled. It makes sense as fully loading both GPU and CPU at the same time didn't cause issues, but since games put varying load at cpu and gpu at different times it was probably causing problems. |
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