Computer shuts down while running games/benchmarks

[sm69baller]

Right of the bat ... I'm having some issues with my build. I've built my computer roughly 6 months ago and i had no problems whatsoever at first, but a few months ago some problems started to occur.
I first noticed this problem when i was gaming (playing The Forest) my computer would fall out and immediately after it would boot again. At first i thought that the game was bugging or that my drivers would play a part in this. Well i'm able to run tf2/gmod/... without any problem but even CSGO seems to trigger problems (occurs uppon launching a match).

SPECS:

MOBO: Asrock Fatal1ty 990fx Killer
CPU: AMD FX 8230-Black edition (3.5 Ghz [Stock])
CPU Cooler: Coolermaster Hyper 212 Evo
Graphics Card: Sapphire tri x oc r9 290
RAM: Kingston HyperX Beast (2x8GB = 16GB)
PSU: Coolermaster G750 M
Case: Aerocool Xpredator X1 (Devil Edition)
Fans: 2 front intake fans (CM jetflo 112), 1 bottom intake fan (stock) and 1 exhaust fan(CM jetflo 112).

So being the tinkerer that I am, i started looking for people with the same problems. I found out that there were other who would have problems with their r9s, but noone had the exact same problem as me. They were all talking about bluscreens and drivers who would stop responding...

Well after running some gpu intensive benchmarks (FurMark, unigine heaven) I was able to recreate the problem. Cinebench (cpu intensive) ran fine. To be sure i tested my rig with one of my brother's dims. Atleast for a while they seemed to hold, but after a few minutes the same problem would occur. So directly after i RMA'd my GPU and they ran some benchmarks(the same as me) and my cart was able to withhold them for 3 full days. So the problem not being my GPU, my best bet was to RMA my powersupply because it could be that my 12v rails would not be loading correctly. Again they rigged my PSU with a skylake dual r9 build and still it ran fine with no problems.

I've reinstalled my drivers plenty of times(latest / beta) and i've even rolled back my OS from windows 10 to windows 8.1 (if this would even have made a difference but ...)

Yeah any input would be helpfull ... (srry for the longer thread).

EDIT: Temperatures are fairly low: GPU maxing out a 72 degrees celcius on furmark full hd preset, rest of the temperatures i can't remember and i can't check because my PSU is still in RMA :D

[taz0]

Did you lok at the event logs for errors that pop up in that when i crashes ? you say cpu and gpu temps are ok but is the ram over heating ??

[sm69baller]

[QUOTE=taz0;50229929]Did you lok at the event logs for errors that pop up in that when i crashes ? you say cpu and gpu temps are ok but is the ram over heating ??[/QUOTE]

I did not have a look at the event logs, but i know for a fact that the ram should not be overheating, they are equipped with their own heatsinks. But thank you for the intel.

edit: i'll have a go at them when my psu returns from RMA. But i don't expect it to have any outcome ...

[[EG] Pepper]

RAM can't even put out enough heat to need heat sinking lol.

It's literally just for looks.

[Levelog]

[QUOTE='[EG] Pepper;50250392']RAM can't even put out enough heat to need heat sinking lol.

It's literally just for looks.[/QUOTE]

Then why are they still making RAM water blocks, hmm?

Really... Why. Same boat as MOSFET and SB ones...

[Michael haxz]

[QUOTE='[EG] Pepper;50250392']RAM can't even put out enough heat to need heat sinking lol.

It's literally just for looks.[/QUOTE]

RAM Overclocking can require additional voltage, which in turn can heat it up a good chunk.

[Snickerdoodle]

[QUOTE=Michael haxz;50256215]RAM Overclocking can require additional voltage, which in turn can heat it up a good chunk.[/QUOTE]

Unfortunately RAM overclocking provides little benefit to system performance.

[[EG] Pepper]

[QUOTE=Levelog;50251101]Then why are they still making RAM water blocks, hmm?

Really... Why. Same boat as MOSFET and SB ones...[/QUOTE]

I've seen water cooled raspberry pi's, if someone wants it, someone else will make it.
Mosfets are a different ballgame entirely. Those can scary hot when you push them.

The only types of RAM that put out any heat you need to worry about is the old RAMBUS and FB-DIMMS.

Your typical RAM in a gaming PC is never going to get hot enough to overheat.

[Levelog]

[QUOTE='[EG] Pepper;50257516']I've seen water cooled raspberry pi's, if someone wants it, someone else will make it.
Mosfets are a different ballgame entirely. Those can scary hot when you push them.

The only types of RAM that put out any heat you need to worry about is the old RAMBUS and FB-DIMMS.

Your typical RAM in a gaming PC is never going to get hot enough to overheat.[/QUOTE]

Nah, modern mosfets are generally fine. They've even done tests without those stupid OEM heatsinks on them under very high overclocks and they still keep at solid temps.

[Vivelin]

I'm facing a very similar issue: after playing more intensive games for a while, the screen will go completely black.
Sound will continue playing for a few seconds until that stops too. At that point, I have to hold down the power button to power it off and start it up again.
I'm running a single R9 290.

It's unlikely to be overheating, as the following screenshot shows GPU/CPU temps and GPU fan speed over a period of ~2 hours or so right up until it halts:

[t]http://s.horsedrowner.net/2016/05/1462991288-MSIAfterburner.png[/t]

My GPU has run hotter and been fine before. These problems didn't start until after I got a 4K monitor.
I'm using MSI Afterburner to control the GPU fan speed to make it actually does something worth a damn, and to set the power limit to +20%.
I have not changed any clocks or voltage settings. I'm using 16.4.2 (I have not yet updated to 16.5.1 but I've experienced this issue on earlier versions as well) on Windows 10.

[lavacano]

[QUOTE=horsedrowner;50301223]set the power limit to +20%. [/QUOTE]

Are you sure that's wise?

I actually slightly overclock my 270Xs and only give them +2% extra power, and it's been fine

if you haven't changed clocks at all why change the voltage

[Vivelin]

[QUOTE=lavacano;50301853]Are you sure that's wise?

I actually slightly overclock my 270Xs and only give them +2% extra power, and it's been fine

if you haven't changed clocks at all why change the voltage[/QUOTE]

A friend of mine who's way more interested in hardware than I am told me to do that. Never really understood why. I'll set it back and see if it happens again.

It actually might make sense; considering it's not overheating, there has to be something else that's going 'too high'.

[BatHands]

If you aren't getting a BSOD or anything from this, it sounds to me like a possible power supply failure. What PSU do you have?

[Vivelin]

[QUOTE=ghostofme;50313294]If you aren't getting a BSOD or anything from this, it sounds to me like a possible power supply failure. What PSU do you have?[/QUOTE]

Corsair TX750M