Sapphire RX 480s not booting up (no display output) on my mining rig

ShagMother

Commendable
Jan 31, 2017
4
0
1,510
my gpu is unable to start. Fans dont turn on but the sapphire led lights work fine as well as the cpu heatsink fan.

I took an old gpu, plugged it in and it works like a charm, so i thought the 480 was faulty but that is not the problem cos it worked fine on a normal computer (i checked myself).

please help cos iv literally tried every thing i could think off :(

mining specs:

Mobo: MSI 970a-g43

Ram: 4 gigs ddr3

Gpu: sapphire rx480 (3 nos)

PSU: cooler master 700 watts

cpu: amd sempron 145

Ps: this is a mining rig. thats y the specs are a little weird :p
 

ShagMother

Commendable
Jan 31, 2017
4
0
1,510




found the problem :) 2 gpus were actually faulty :(

plugged in another gpu and it worked


thank you so much for ur fast replies :)
 

ShagMother

Commendable
Jan 31, 2017
4
0
1,510



yeah 2 seems to not work at all :(. i checked all gpus on my personal computer (which works fine obviously :p) and only these 2 gpus dont turn on :(