PC Processors

[illesrobi]

Hi! 

I am a bit of newbie, sorry for this. 

Using mainboard X570-A Pro (ms-7c37) with 32 gig Kingston Fury Beast Black CL18 (KF436C18BB/32), 1TB Kingston SSD M.2 NVMe KC3000 meghajtó (SKC3000S/1024G). 

I am running all kind of benchmark to test my new cpu, and there is something wrong here. 

I tested CPU-Z, single thread score was ok, 684 points. But multithread point was only 1147 points... too slow.  (11841 is ok). 

I tested passmark. It gave 19375 pts instead of 45800 pts. (Extended instructions SSE are too low, instead of 39954 pts, it gave me only 2989 points. 

I tested geekbench, single core is ok, multicore score is 8860 pts, instead of 16470 pts  ....  

WHAT is going on? 

Could you help me please, I am devastated.... 

THX in advance!

Robert 

[illesrobi]

Another thing is, If I run cpu-z benchmark, again, again, again. On every 10 ocasion it gives me the REAL high results (11900), and on every other ocasions it gives me the very low 1140 points result. 

...

[MADZyren]

Maybe this will explain it https://www.youtube.com/watch?v=xbyWKufthS4&t=775s 

Your motherboards VRM (= components in power delivery) is not build for 16 cores. Maybe sell previous CPU and motherboard and get a more suitable motherboard for your CPU.

[illesrobi]

Hi MADZyren, thanks for your answer. 

You are telling me that the motherboard I bought does not support all of the 16 cores properly?

So my processor is working properly then?

That is a great news.... Any other solution please, maybe some BIOS setup thingy, or anything, but not changing my motherboard....

Could you recommend me some good-price motherboards that are surely working fine?

THX again!

[MADZyren]

It is a bit difficult to diagnose with this amount of data and not seeing the machine myself, but test software usually stresses components more than normal use and you have a 16-core CPU and a motherboard, which could not run a 12-core 3900X without overheating and throttling. Dare I even ask what PSU you have?

Correct thing would be to get a motherboard with powerfull enough VRM. From the link I send, for instance Asus X570-P and Asus X570 TUF are ok while people usually get more expensive boards with 16 core CPU's. I have used Asus motherboards for quite some time and I think next one will be one too. People who use other brands seem to have a lot of issues. Not sure that is the reason, but when was the last time I encountered someone with Asus motherboard, who had problems with his machine. Now that I start to think about it... I can't recall a single case.

What you can do is undervolt the CPU to reduce power consumption, but I would rather just negotiate if you can return that motherboard and get a good one instead. Also, please don't run a 16 core CPU with some cheap PSU...

[illesrobi]

Thanks MADZyren!

I will try my best!

Take care

[illesrobi]

Hi All! A last question... 

Is there an amd cpu tester software which tests and look for bugs in cpus?

thx, Rob