Problem with my hash rate

[Waamoom]

I have 8 rx580 mining rig  my problem is that 4 of my gpu are working fine with 27 hashrate another 4 have 16 hashrate

Mining etherum in claymore


What can cause this problem?

[darkneorus]

have you switched the last 4 cards to compute mode?

[Waamoom]

have you switched the last 4 cards to compute mode?

Thanks bro that solved it for me

[markiz73]

Guy, we're not clairvoyants
Write the full configuration, operating system, driver version. Have the bios been modified?  27 Mh/s very small performance for rx580.
I have several versions, but I do not want to talk about them until I get the necessary information.