Rx 580 not going above 22,14 MH/s

[Timpiepc]

Hi all,

Just purchased a used Gigabyte Aorus RX 580 8gb. I was planning to add it to a new rig.
Whilst installing it in my rx 6700 & rx 6800 rig today to try it out I noticed it was doing between 18-22 hash max. If I removed all overlock settings it does 22,14 it seems to be capped as it never went over it.

It has Hynix memory. What I find strange is that next to the Hynix memory label in hive it only shows xxxxxxx and not any information like my other cards do.

What have I tried:

• I flashed to the original bios, no difference
• I flashed to better timings using the bios flash tool to auto optimise timings with one click
• I tried a bunch of overclock profiles. No matter what I change in Hive OS the hashrate will only go down
• I installed the card in two different rigs

Is this a faulty card or am I overlooking something? The card runs around 60-75 degrees Celsius but it sure feels very hot.

This issue makes me wonder if I like to scale up with rx580s and buy them cheap in a used state. If it’s like the lottery if they do more than 22 hash then I prefer a 1660 super for sure.

[Timpiepc]

I must have done something wrong during the one click bios update. Went through the process again and now it does 27 hash without further oc settings

[rkulov]

Or you flashed it with errors. When flashing use forve flash option. Not OC it properly and it will run closer to 30.

[Smining570]

i have one 580 that dont tolerate high mem…so with lower mem and high core&vdd its hashing over 32 but if i go like 2140-50 it stays aroun 25-8mh…maybe mem is dying on my gpu…dont know if this is any way related to your gpu, just my experience with one 580