Windows Mining or Linux Mining / help with config.

Hi Guys,

I'm new to mining and struggling with this over clocking / undervolting..etc... I'm downloading so many bios..etc.. then using certainly examples of claymore config to get the extra juice out of these cards.

However what I have noticed I get completely different results if I'm using linux or windows with the same command line. Can claymore under volt in linux?

I cannot get up to 30mhz its always this - I mean 167mhz is better than nothing however I know it can do more...

ETH - Total Speed: 167.393 Mh/s, Total Shares: 63, Rejected: 0, Time: 00:26
ETH: GPU0 27.937 Mh/s, GPU1 27.862 Mh/s, GPU2 27.862 Mh/s, GPU3 27.868 Mh/s, GPU4 27.929 Mh/s, GPU5 27.935 Mh/s

This is in linux and the same in windows using this bios - http://1stminingrig.com/best-bios-rom-sapphire-nitro-rx-580-8gb-oc-hynix-memory-30-mhs/ for the Sapphire, and for the XFX I've just changed the strapping 1750 and 2000..etc.. I have tried copying the Sapphire config within the bios editor to the xfx via the bios editor and the results were the same.

The graphic cards are:

Sapphire AMD Radeon RX 580 8GB NITRO+ Graphics Card x 3
XFX RX-580P8DBRR GTR Radeon RX 580 8GB Black Edition 1405 Mhz OC Core clock x 3

I'm not asking for the exact figures to put but some guides on what all these figures mean, so then I can test various setups and get to the best for me. this is what I'm putting in claymore

-tstop 85 -tt 65 -fanmin 60 -fanmax 100 -cclock 1130 -mclock 2150 -cvddc 850 -mvddc 850

sorry to ask such a basic question, however just think I'm missing something...

Thanks in advance, hopefully you can point me in the right direction.