Hey guys. Need your experience on this.

I recently changed to Win7 in order to try to get a stable build for my 5 GPU rig.

I'm using 5 AMD RX480 GPUs on this rig with Driver 16.9.2 and it looks very stable so far. The only problem is, the driver doesn't seem to recognize a 5th GPU, it only sees 4 of them.

I know that the issue is not a bad riser or the Motherboard. I had been able to run 5 GPUs on Win10 before but it eventually crashed after just 30 minutes or so. The difference was that I was able to hook up al 5 GPUs before.

Now, Windows7 can see all 5 cards on Device Manager, also I can see all 5 with GPU-Z. It seems that my problem is that I can't get the driver to manage all 5 cards. Wattman and can only see 4 of them.

Any ideas on how I can fix this?