Bitcoin Forum

Alternate cryptocurrencies => Mining (Altcoins) => Topic started by: felix920506 on February 01, 2021, 10:19:23 AM



Title: Rig won't post after installing 4th card
Post by: felix920506 on February 01, 2021, 10:19:23 AM
Building a new mining rig
Specs below:
Amd athlon 3000G
Team DDR4 8GBx1
Asrock B450 Gaming K4
WD Green 120gb m.2 sata ssd
radeon rx580 8gb *4
evga 850w GA power supply

all works fine with 1~3 cards
when I plug in 4th card it doesn't post


Title: Re: Rig won't post after installing 4th card
Post by: nbminer on February 01, 2021, 10:44:55 AM
Have you enabled Above 4G Decoding in bios?


Title: Re: Rig won't post after installing 4th card
Post by: felix920506 on February 01, 2021, 11:18:07 AM
I can't find that option on this board
bios version is P3.90


Title: Re: Rig won't post after installing 4th card
Post by: miner29 on February 01, 2021, 01:47:21 PM
Are you plugging all 4 directly in the mobo...if you are try using risers for some / all of the gpus.  When plugging directly into the pcie bus...it requires the mobo provide power through the pcie slots.  Riser remove this power draw from the pcie bus. 



Title: Re: Rig won't post after installing 4th card
Post by: nbminer on February 01, 2021, 02:14:16 PM
I can't find that option on this board
bios version is P3.90

It should be in the Boot Screen options