gigabyte GTX 970 freezes during some game and also during stability test

justinf10000 · Mar 24, 2016

Posted this in another section, but this section is my favorite and always the most helpful, sorry!

I'm really not sure what the problem is.

I have an i5 6600k and gtx 970.
The i5 is OC'd to 4.5 at 3.45v . The GPU is not OC'd,
PSU is EVGA 650W 80+ Gold Certified Semi-Modular ATX Power Supply

I noticed my PC will randomly freeze while playing games such as smite (low gpu game, i have 150 FPS), but is fine during graphic intensive games like BDO.

When i run stability tests using CPUID the PC is fine if "stress GPU" is not checked. However once i check that off and run the test, the PC will freeze after about 8-10 seconds, the same as it does when im playing Smite. I have to hard reboot the PC to get it working again.

My CPU temps look fine, never go above 70.
My GPU temps look fine (as far as i can see until it crashes). I don't see any abnormalities.

Also, i do have the latest NVIDIA drivers.

Any idea what is causing this?

Thanks in advance

justinf10000 · Mar 24, 2016

OK. Just tested. with the CPU at stock, it doesn't crash.

What does this mean? I need more voltage to the mboard?

Shaun o · Mar 24, 2016

It means what it means.
Back your cpu overclock off by 100Mhz.

Test again for stability and freezing clocking it down by 100Mhz is not going to see much of a hit to notice on performance anyway.

It`s better that the system is stable isn`t it ?
backing it of by 100Mhz will no wonder resolve the problem.
Higher frequency, requires more power as you know.

joshyboy82 · Mar 24, 2016

I don't think more voltage will help you. It will bump up your temps and then the CPU might throttle. Your GPU is capable of 280w under full load, your Mobo consumes 300, So you only have 70w of flexibility in all your other parts, ie: Hard Drives, Optical Drives, Fans, Lights, controllers, pumps. Overclocking drives up your CPU wattage, and it's possible that you're running out of power.

Try running your CPU OC at ~4Ghz and run the stress test again to see if it crashes.

justinf10000 · Mar 24, 2016

Shaun o :

But i see lots of i5 6600k at 4.5 or even higher. Why shouldn't mine be able to do the same? its a pretty standard OC for this CPU

justinf10000 · Mar 24, 2016

joshyboy82 :

So there's no way to keep the 4.5 OC? Did i get a bad chip or something?

joshyboy82 · Mar 25, 2016

justinf10000 :

No, Your chip is great. I feel your powersupply can't handle the demand. By pulling the OC down, you bring your power under control. Then you end up with a (STILL) overclocked CPU, and no crashes. Is turbo still ON in your OC settings? Maybe leave it at 4.5 and turn off Turbo.

justinf10000 · Mar 25, 2016

joshyboy82 :

justinf10000 :

No, Your chip is great. I feel your powersupply can't handle the demand. By pulling the OC down, you bring your power under control. Then you end up with a (STILL) overclocked CPU, and no crashes. Is turbo still ON in your OC settings? Maybe leave it at 4.5 and turn off Turbo.

Yes turbo is still on. I'm not even quite sure what turbo does once the cpu is already overclocked? Can you elaborate? I'm kinda newbie.

justinf10000 · Mar 25, 2016

and if i bring the clock down but keep the same voltage, wouldn't that still be the same exact strain on the PSU? i'm confused.

Th3-Hunter333 · Mar 25, 2016

justinf10000 :

Pretty sure you mistyped your voltage, 3.45v?

I doubt its THAT high, what is the actual vcore voltage you have applied?

Overclocking takes alot of tinkering

justinf10000 · Mar 25, 2016

Th3-Hunter333 :

justinf10000 :

Pretty sure you mistyped your voltage, 3.45v?

I doubt its THAT high, what is the actual vcore voltage you have applied?

Overclocking takes alot of tinkering

Oops sorry i meant 1.345

I tried lower voltages but it won't load to windows at a lower vcore. Will going higher fix the GPU freezing?

joshyboy82 · Mar 25, 2016

justinf10000 :

No. Your CPU uses extra overhead power and temperature to Self-Overclock when it can. So if you are at 4.5Ghz and your CPU turbos, it might bump to something crazy like 5Ghz and crash your system. This could be because your CPU can't handle that and loses stability, or if it (amazingly) can, it draws too much power and overloads your PSU.

Your CPU runs stock at 3.5Ghz and turbos to 3.9. If you change your base overclock to 4.5 and leave turbo on, it tries to go even higher. This is because the turbo is a set multiplier of it's own. so if it's .2 Turbo clock, well .2 at 3.5 is much smaller than .2 @ 4.5

Th3-Hunter333 · Mar 25, 2016

joshyboy82 :

justinf10000 :

No. Your CPU uses extra overhead power and temperature to Self-Overclock when it can. So if you are at 4.5Ghz and your CPU turbos, it might bump to something crazy like 5Ghz and crash your system. This could be because your CPU can't handle that and loses stability, or if it (amazingly) can, it draws too much power and overloads your PSU.

Your CPU runs stock at 3.5Ghz and turbos to 3.9. If you change your base overclock to 4.5 and leave turbo on, it tries to go even higher. This is because the turbo is a set multiplier of it's own. so if it's .2 Turbo clock, well .2 at 3.5 is much smaller than .2 @ 4.5

Precisely this^

Start by turning turbo boost off and then stress testing with that voltage and frequency (watch those temps always)

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