Pc has died??

[jackinyrsax]

Hi,

My pc has died it appears and hopefully somebody can point me in a direction.
Specs are:
Asus maximus hero viii mobo
I7 6700k 4gz, liquid cooling
16gb corsair 3000mhz ram
2x Gtx 1080 in sli
Asus 7.1 pci sound card
Gold 850wat psu xtr
256 ssd
1tb hhd
2 TB sshd
Pc was built about 9 months ago all new parts.

So basically the pc was running fine all day until about 40 mins into playing the witcher 3 where it did a full shut down as if the power was pulled from the wall.

I know the gpus are fine cus I monitor them regularly, so I started running prime95 to test the cpu Temps under load as they were the only thing I could imagine causing a full shut down like that. After 10 mins testing the cpu was at 93 Celsius and rising steady so I stopped the testing and restarted into the bios to see if I could control the fans to possibly fix it.

After some fan control modifying and turning on the option of enabling 'qfan cpu fan control' I proceeded to save and exit the bios. The moment I clicked on the option to exit the pc shut down and hasn't turned on since.

Only activity I can see is mobo lights just confirming power is running.

I've since removed the gpus, sound card, ram and hard drives, cleared cmos and physically removed the battery for 5 mins and the best I can get is the pc turning on for 3 seconds twice in the last 3 hours. The fans turn on then everything goes dead again. And those times were after having been unplugged and drained before each of those 3 seconds.

In my frustration at seemingly bricked my mobo I downloaded latest bios on a USB, renamed it appropriately and ran it using the USB flash button at back of mobo. To no avail..

Please someone any ideas?

 

[captaincharisma]

if it died while playing a game. odds are good its the power supply

 

[sizzling]

What exact make and model PSU?

 

[jackinyrsax]

It's the xfx xtr 850 watt gold modular psu

U think Psu even with the cpu Temps mentioned above?

I've been doing intensive gaming probably the last 4 days in a row and nothing happened but tw3 was the first game to have much cpu intensity involved.

On another note however on different occasions in the past months the pc refused to start from sleep and stayed in the sleep mode but with the power light having changed to on. It also on occasion refused to start from standby without a few clicks to the power button. However I mostly start from a fully cold boot so I havnt encountered this is in quite a while.

 

[g-unit1111]

It's the xfx xtr 850 watt gold modular psu

U think Psu even with the cpu Temps mentioned above?

I've been doing intensive gaming probably the last 4 days in a row and nothing happened but tw3 was the first game to have much cpu intensity involved.

On another note however on different occasions in the past months the pc refused to start from sleep and stayed in the sleep mode but with the power light having changed to on. It also on occasion refused to start from standby without a few clicks to the power button. However I mostly start from a fully cold boot so I havnt encountered this is in quite a while.

What kind of monitor are you running? And have you done any overclocking to your PC? If it's a new PSU I wouldn't immediately point fingers at the PSU - that's generally a good choice of PSU. And the reason I'm wondering is if there's any additional stress that could be put on the PSU that's causing it to short out. In theory your PSU should be able to run both cards on full load. But if the cards and the CPU are overclocked then that could be putting additional stress on the PSU which in turn would mean that you'd need a higher wattage and efficiency rating.

 

[jackinyrsax]

Hey G-unit,

Im running 2 predator monitors, one 4k gsync 60hz and one 1440p 165hz gsync. I game on the 1440p monitor. And when gaming shut down all other apps..however i think i may have left open chrome and few tabs yesterday as well as utorrent when playing the witcher. That hardly aided in a full shutdown?

The gpus are overclocked to a stable 2050mhz, but no modifying to any voltages on anything.

I didnt overclock the cpu as i felt the temps were where i wanted them to begin with, so wanted to leave them. Under load in games i averaged between 50-70 celsius.

After taking the whole pc apart other then cpu and mobo i got it to boot with just the powersupply last night. i proceeded to reinstall gpu's, ram and hhd's. then drained psu by holding down power button while all unplugged. waited 2 hours then it turned on and booted fine. now on this forum from it.

I had been unable to narrow down the source as even with all the internals taken out it still wasn't starting, thus why i went and put everything back in at the same time. also cus i was frustrated out of it, having been working on this for the guts of 10 hours yesterday.

My fear now is that i've somehow worked around the problem but it could come and bite me in the ass in more time like in days or months again.
A long time ago probably 4 months ago i was pretty drunk coming back one night and upon booting i remember a message on boot up about a power surge and that the pc shut down to protect itself. i didnt think anything of it at the time cus i was drunk and it was turning on and worked fine but could this have given the psu some problems that are now becoming less stable? it literally just came to me there after reading similar threads and people asking about surges..

Thanks again for all interest and help guys

Edit : just ran watch dogs 2 for about 15 mins to see if it would run fine and did the same full shut down as was first encountered.. Was monitoring Temps and nothing above 65 on cpu or gpu. This looking more like psu now?

edit 2: Just tested more and on 1 gpu this time with fan speeds set to default to use less power. rainbow six seige runs fine as its not pushing the psu it seems.

Just looking for confirmation that this is a psu problem guys before i go and buy one as i dont have the spare cash to buy the wrong part