5820k OC'ing woes

Goose · 4 Jul 2016 at 14:12

I recently bought a 5820K (J Batch) and an Asus X99-A II mobo and have begun trying to OC it with mixed success. My first attempt was to enable XMP and go for 4.2ghz with a Fixed vcore of 1.2v which passed 2 hours of RealBench with temps around 70c.

After discovering that Fixed meant it would run at 1.2v 24/7 I tried again but this time used Adaptive vcore which i set at +0.25v. After running RealBench the vcore sat at just under 1.3v with temps nudging in to 80c. After about 10 minutes I got a windows message of "Something went wrong with your PC" (or something to that effect.

I found this rather puzzling since it was fine at 1.2 but failed at 1.3 despite both attempts being 4.2ghz. I was also disappointed in the performance of my NH-D15, I was expecting better temps than this.

Anyone have any idea whats going on here?

Thanks

OLDPHART · 5 Jul 2016 at 07:00

All l did was set my Bios at 4.2 every thing is left at Auto, Vc never goes over 1.28v and it down clocks the CPU speed+voltage as well.

At 4.4/1.29v

Reset your mobo to default settings before you do anything else, l always do this if the overclock fails.

Hows the air flow in your case?

Voltage checked with CPU-Z.

Running a 5820k+Asus x99-A myself.

Goose · 5 Jul 2016 at 14:58

I tried again with Offset mode (not really sure what the difference is with Adaptive) and it was much happier this time running 4.2 at 1.25v.

Airflow is ok, my case is a Phanteks Evolv with 2 intake and 1 exhaust, gonna add a 2nd exhaust today on the top panel which might a help a little more.

tyler_jrb · 5 Jul 2016 at 15:15

Ensure max power is increased aswell. Should be under CPU power management and should be something like long/max duration power limit. That could be your problem pushing the higher volts. Just set it to 250, it will only use what it needs.

My 5930k will do 4.5ghz at 1.25v. Also best to run it in manual rather than XMP and use speedstep if you'd rather it downclock if required.

And yes those temps should be quite a bit better with the noctua. Ensure good airflow, good contact, seated square and paste spread correctly over the IHS.

AdamScott85 · 5 Jul 2016 at 20:17

Try turning off XPM and go from there. I followed this guide for my 5960x an I was able to use the exact settings, I lowered my ram from 2666 to 2133 as it was much more stable at 4.5ghz. http://www.tweaktown.com/guides/675...-spec-qfra-cpu-overclocking-guide/index4.html

Dirk Diggler · 5 Jul 2016 at 20:35

Goose said:
My first attempt was to ... go for 4.2ghz with a Fixed vcore of 1.2v which passed 2 hours of RealBench with temps around 70c.

...I tried again but this time used Adaptive vcore... "Something went wrong with your PC" ...

Anyone have any idea whats going on here?

I think the answer may be staring you in the face, fella.