I build 2 Rigs
1)
Asus b250 mining expert
8 x sapphire rx 580 8gb nitro+
Corsair tx750w x 2
120gb ssd
Windows 10 64
16gb ram
I3 7100
2)
Asus z270-p
6 xfx gts xxx rx 580 8gb oc
Raidmax cobra 1200w gold +
120gb ssd
Windows 10 64
4gb ram
Dual core processor
Both cards are giving only 18mh/s and temperature is between 72 to 77 for all cards hashrate out of the box & i don't know y. And the 1st rig displays every few minutes errors in miner & keeps on disconnecting from internet, plus it stops mining if you stop using keyboard or mouse
Which 2 cards on which rig?
Which miner are you using, and what driver versions for your GPUs?
Did you use any BIOS modifications? Have you changed clock settings at all, and if so, using what software?
On your first rig, have you checked the driver for your NIC?