TB250-BTC PRO not seen more than 4 gpu

[ismail-uk]

Hi everyone

i hade a problem with Biostar tb250-btc pro motherboard.

From bios i upgrade bios to latest version via internet

pci e card i did all gen 2

mining mode When click enable black screen come one on dos screen not not opened windows.

If mining mode close i cant see more than 4 card.

When put 1more card (5th) 3 gpu from device manager show exclamation mark.

i got 5 rx 580 , 8gb graphic card, 4 x armor, 1 x red devil.

what am i missing?

Thanks

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[totko]

Hmm try manually updating bios , in bios set mining mode on 6+ card, and set everything to GEN 1 not 2
Problem is resources on mobo and how the bios manages it!

[Johny101010]

2 things:

1. Check to make sure you are using mining Mode UEFI unless you are using a custom Linux distro.

2. And most importantly check your risers. Usually, in every pack of 4 you have a bad one. That will screw up the whole setup.

[Cereberus]

This fix is easy. As long as you see 5 GPU-s recognized although with exclamation mark it is no problem. I have already advised to many persons to do this and the majority of them have been successful.

Download DDU(Direct Display Uninstaller) google it.
Uninstall the driver/s of all cards completely.
Reboot.
Download and install the latest drivers from AMD website.

Also you better change every PCIE to Gen1 and not Gen2 from Auto.

[ismail-uk]

i tired all but still same, so i gave this back and get asus b250h , can connect up to 8 card its working fine now.

Thanks

[Metroid]

i tired all but still same, so i gave this back and get asus b250h , can connect up to 8 card its working fine now.

Thanks

Is this one with 6 or 12 slots?

[ismail-uk]

i tired all but still same, so i gave this back and get asus b250h , can connect up to 8 card its working fine now.

Thanks

Is this one with 6 or 12 slots?

6 slot pci express and 2 slot m2 sata connection, i bought m2 to pci express converter. right now 7 card working fine with etc and musicoin but not with etherium.

[bitraj]

Hmm try manually updating bios , in bios set mining mode on 6+ card, and set everything to GEN 1 not 2
Problem is resources on mobo and how the bios manages it!

Had same issue ..used your method and worked like charm......but hashrate got decreased ......do you why did that happened