4 gpu claymore, worse than 3 gpu ?

Dear Sirs,

What I experienced;

4 gpu (1x assus strix rx470 + 3x msi rx470).

Claymore was showing me 2100 h/s on screen but pool hashrate is 1700 h/s. (after 12 hours test)

After start use xmr stak, screen hashrate and pool hashrate almost same. (after 9 hours test)

When I was using 3 gpu (all msi rx470), there was no such a gap between pool and machine.

there was only memory overclock, from 1650 to 1745. Now I stop this oc as well. Started new test with claymore. But according first hours, still same problem.

What could be the reason?

 

what is your memory brand? hynix samsung or micron. Do you flash the bios?

 

All 4 memory brands are hynix. There is no bios mod.

 

encouter this when i having the samsung chip. u might need to flash the bios to get back the speed.

 

Sorry, I don't want to be like in argument. But;

Why I need to be flash bios, if I did not make any mod? By the way; xmr-stak gpu miner has no same problem. When xmr-stak works well, I try to understand; claymore' s problem.

br

 

Hi,

As I mentioned before, I stop memory OC. After 5 hrs test. Claymore reports 2100 h/s. And minexmr pool result is 2070 h/s. Seems, claymore runs good now.

Can I say, memory OC main cause? If I can, why?

BR

 

Sounds like your OC was not as stable as you thought

 

Can we say your comment, for all OC thecknology? or there are some other ways for stable OC?