Ryzen 5 2600 always freeze in Prime95 blend test or Intel Burn

[tramtalala]

Hello guys,

I am currently running Ryzen 5 2600 with ASrock b450 fatal1ty K4 motherboard and Patriot 2x8GB 3200Mhz

If overclocking I can not get stable on almost any CPU requency form 4Ghz up to 4.2Ghz
PC always hard freeze in Prime95 blend test or Intel Burn test. Some time after 20min sometime after 70min it depends... Need to push the restart button to get it to the Windows again.

I tried Changing almost every entry in BIOS and also tried almost everything I found on internet but no luck.

I have tried changing voltage from 1.1 to 1.4 incrementally, also SOC voltage 1.1 to 1.2, DDR voltage, VDDP voltage. Turning XMP off and ON. Turinng off C states also the Processor boost. Always the same result.

I am using Mugen 5 rev B on CPU and I think I have to high temp somehow.
I got on 1.33V 4.050Ghz in Prime 95 85+C degrees. I found the temp is not affecting the frequency of system freeze because my longest run (2h) was on 1.4V 4.050Ghz and have whole time cca 90C.

I have also tried different RAM sticks from Crucial 2400Mhz

Any help appreciated!

 

[bmockeg]

You are going to need a better CPU cooler.

 

[tramtalala]

You are going to need a better CPU cooler.

Thank you for your contribution but please look at this post: http://www.tomshardware.co.uk/answers/id-3778324/ryzen-2600-temps-high.html
I have almost twice as big cooler than he has and also Mugen 5 is very good if you check reviews. Check his temperatures...
I have 5x12cm fans in case also 3 in and 2 out.
I tried to change the thermal paste too, still the same result...

 

[bmockeg]

Mugen 5 is a good cooler, there are definitely better ones. You need a top level air cooler or,AIO for what you want.

 

[tramtalala]

Mugen 5 is a good cooler, there are definitely better ones. You need a top level air cooler or,AIO for what you want.

I am trying to reach numbers as you can see in every Ryzen 2600 review on the internet done with stock cooler... Please read my post properly.

Also I have succesfully run 11 hour small fft without error on 4.1Ghz 1.33V
I am crashing only on blend test.

 

[bmockeg]

Good luck