CPU suddenly unstable

s1l3ntshadowz · Jun 13, 2015

Ok so I have previously been able to run anything and never suffer an instability crash, now every single time I play GTA I crash within 20 minutes, most of the time 1-10 mins. I downclocked my CPU and Bus speed, CPU by 200MHZ and Bus down to default (100 MHz), this fixed it, however I moved it back to 4.5 (now 4.6) GHz and am crashing again. Why is this happening? It was always fine until I installed my new Strix GTX 980 (probably why somehow). I don't understand how a stable OC goes unstable by almost nothing, anyways I up'd voltage from 1.320 to 1.350 n will continue to go up until this stops or I get too high to be comfortable with. If anyone can explain why this is happening suddenly or a better way to resolve this please do.

mo · Jun 13, 2015

Overclocking your cpu can have cascading effects on other hardware, in this case your newly installed GPU. This is especially true if you have modified your base clock because base clock impacts everything (even pci lanes and your gpu may be getting unstable because of this). You may want to only limit to using your cpu mulitplier to OC it and leave the base clock alone.

barto · Jun 13, 2015

It's not recommended to overclock the BCLK because it affects everything else including USB, SATA and PCIe ports. You installed a new GPU with an overclock BCLK. Sounds like you know exactly where to start.

s1l3ntshadowz · Jun 13, 2015

mo :

I am aware of the effects of the bus speed overclocking, I liked it for that but since it was causing me problems I removed it under assumption it had messed my RAM up (though it didnt mess it up). Also I have already lowered it back to the default, so its not the issue. However I am trying GTA V again after buffing the voltage up a bit and I'll report back if this solved it, however I still want to know why my CPU crashes on the same voltage it was before the GPU. Weird.

s1l3ntshadowz · Jun 13, 2015

barto :

It's been back to the default since I posted this and since last night, still suffered a crashing today. Not sure if I didn't mention the default part in the OP, if so my bad.

barto · Jun 13, 2015

Sure. I don't find it very odd. You introduced new hardware into the system. Drop back down and work your way back up a higher frequency. The components aren't completely independent. You may have been able to achieve a higher clock with that voltage because of the increased BCLK. Now that the BCLK dropped, you have changed a factor.

Welcome to overclocking. Just to make sure it's not completely OC related, can you post your entire build? (Make and models)

s1l3ntshadowz · Jun 13, 2015

barto :

i7-3770k @4.6GHz no bus OC now
STRIX GTX 980
16gb DDR3 Transcend 1600MHz RAM
250GB A-Data SSD and a 500gb Seagate & 2tb Western Digital black
Asus Maximus V Formula mobo
Corsair H60 CPU Cooler
1000W forgot the name PSU. Gold rated

barto · Jun 13, 2015

Efficiency really isn't a concern. Build quality of a PSU is. I doubt it's an issue, but it's always something good to know.

I would start fresh at 4.0 and work your way back up.

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