Just got the Z590 Dark and swapped out my Z490. System has a 3090 KPE and an EVGA 1600 T2 PSU. When I start the system I get stuck on POST code 97. This appears to be related to the GPU. I've tried a few things listed below:
- Updated the Z590 Dark BIOS to 1.03 (most recent) - No change
- Tried different BIOSes on the Z590 and the 3090 - No change
- Disable PCIe 1 (Turning off the 3090 effectively) - System boots fine with iGPU
- Disable iGPU - No Change
- Reseated the 3090 - No change
- Swapped out the 3090 for a GTX 750 - System boots fine with the GTX 750
- Enabled ReBAR - No change
So the system works fine with other another card and the iGPU. Any other suggestions for things to try?
As a last resort I could try the 3090 with the old Z490 board again, but the 3090 has the HydroCopper block on and is in a loop, so I'd had to drain the loop and pull it to test (and do a quick test to POST)