Problem with msi b250 PC MATE installing more then 2 Graphic cards

AminElEl

Prominent
Jun 18, 2017
10
0
510
OK i am using win10 64bit, sata HDD, and B250 PC MATE by MSI.
Problem is next:
When i connect rx480 to PCIe1 and r9 370 to PCIe4 everything is working perfect, but when i try to connect one more r9 370 with rise cable nothing happens. i tried all combinations and cable is working,but with 2 GPUs.
 

tyron.bennett

Prominent
Aug 30, 2017
3
0
510
Hey,

Dont know if this has been answered but if you read the manual you will see that some of the PCIe slots are disabled if you use the other. Slot 2 is disabled if you have something in 5 or something like that. That is because there are only so many busses available on the card. With rizers I can get 3 cards working, but not a 4th. Im looking for a solution since according to the specs I should be able to get a 4th going, but probably thats the max.