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Low Hashrate CPU Mining xmrig v.6.20.0

General
#1

Hello fellow miners,

I am having trouble mining on my AMD Ryzen 9 3900x rig. I am mining Zephyr with XMrig v6.2. Since somewher in october i have been getting a hashrate of around 2 kH or lower, while before it was between 15 and 20 kH. I did not make any changes and the cores are running at very low temperatures. I have no idea where i should be looking to troubleshoot.
I tried to run s-tui stresstest and with that everything starts churning up (AIO fans), but as soon as i stop it, everything goes back to low temps and the hashrate stays low. What could it be?

I realise i might not be providing enough information to troubleshoot, but maybe someon has had this before?

#2

Check clocks and voltages are properly set in bios.
Check memory is set to xmp enabled

With a 3900x you should be between 12-14kh on normal settings with decent ram

#3

Hey @keaton_hiveon , i have set the clocks and voltages properly, but no xmp. It was however working without xmp

I have a bit of overkill of ram, 32gb

#4

Youll want xmp enabled for randomx.

#5

Hi.

I have the issue that 1 of my rigs is doing 12KH on randomx and the ither just 7kh. everything is the same exept the motherboard. cpu is 5900X, What could be the issue for th elow hasrate?

#6

What motherboard/settings? Usually i see people using very low end boards with little to no vrm cooling causing throttling.

#7

Hi.

Well im leaning on the Motherboard its Asrock B550M-HDV.

It has hit one time 13 KH but then just around 7 KH.

#8

That is 100% your problem with that board.those are not good at all for mining as they have no heat sinks on the vrmsand just peg at 100c

#9

Well, I have an X570 board and I enabled xmp, but still 1.8kh

#10

Can you post a screenshot of the console/ miner log when xmrig is first starting?

#11

Actually, i have just set the cpu speed manually in the bios and it suddenly started hashing again at 13kh!