[computer flat out shutting down]

@Leamas.5803 said:Does OCCT give you a log or tell you what it did or what the fault was? Have you replaced the PSU and have the GW2 crash go away? What, if any, messages in the Windows Event Log are you receiving at the time of the crash? Do those messages match between the OCCT crash and GW2 crash? I still find it peculiar that in pretty much all cases, GW2 is the only trigger. We've also had many people who've replaced their PSU and not had the problem go away, Exstazik and Sir Vincent III, just in the last few postings. I wonder if OCCT is managing to stress the PSU in to a crash, but ultimately unrelated to the GW2 problem.

I get no errors from Windows Event Log before the crash. I get errors after the crash stating that the last shut down was unexpected, with both OCCT and GW2.I've done more testing on my current hardware (will list specs) and GPU testing with OCCT also seems cause crashes, although it takes slightly more time . edit: the gpu test also needs to be set at the highest intensity, or else no crash.

Current specs:

• i7 4790, with a zalman cnps8900 cooler
• 4gb x 2 ddr3 1333 mushkin ram
• nvidia gtx 760, from evga
• Seasonic G series 650 watt
• Gigabyte GA-Z97N wifi mini-itx motherboard
• corsair 250D case
• 3 SSD's, 250gb Adata sx900, 500gb Intel, 120gb Samsung evo
• 1 tb Western Digital Caviar Green HDD

GW2 is installed on the samsung ssd (it's the only thing on it along with GW1). GW2 also used to be on the intel SSD when crashes first started. I moved it and the crashes still occur. Temps are fine and RAM was tested for about 10 hours with memtest86, no errors.

I am in the process of trying out an older video card (gtx 570) and an older PSU (corsair tx650) that I already have, I will come back with results.

update:

I crash even faster with my old gtx 570! Much faster! 5 seconds into OCCT default GPU test! (still using the seasonic PSU) Never had a problem with this card before.

2nd update:

No crashes yet using my gtx 570 and my old PSU. Seems my problem might really be the seasonic PSU. Will put my gtx 760 back in, with my corsair PSU. If the seasonic PSU truly is at fault here, I'm going to have to install a non modular PSU in my mini-ITX case...what a joy!

3rd update:

No crashes in OCCT using my old PSU and gtx 760, maxing out cpu, gpu and ram simultaneously. I'll go try GW2 using this setup.

[computer flat out shutting down]

I've been having a similar issue, where my computer shuts down while playing gw2, for about one month. I did the usual (this is not the first time I've had to troubleshoot a pc) tempurature checks and everything is OK (nothing above 60 celsius). I even re-installed my CPU and GPU coolers to make sure. I then proceeded to do some benchmarks (prime95, memtest, furmark) but none have been showing any sign errors.

Tonight I've managed to successfully recreate this crash (twice!) using OCCT on "power supply" mode and I suggest that you all give it a try. Something is certainly going wrong with our PSU's!

Also if you want to monitor/log tempuratures and voltages, try out speedfan.