I have a pretty strange problem here and I would appreciate your help. I recently bought a new graphics card (MSi R9 390 8GB) and a new case as part of an ongoing upgrade to my existing, fairly ancient PC. I transferred all existing components to the new case and it works just fine – that is with all the components as they were in the old case.
When the new graphics card is inserted in place of the old one, I get an error message before I can even load the BIOS; "A bootable device has not been detected" and then a URL for Intel motherboard support. I don't think the GPU is faulty, because I am still getting an image on the screen. So what could it be? Could it be that the motherboard is simply too ancient for this GPU? Am I connecting power to the GPU incorrectly?
Things I have tried, among others:
- Resetting CMOS.
- Using Guru3D to make sure old drivers are deleted.
- Checked every connector – the computer works exactly as it should with the old GPU in place.
- Reseated the RAM.
- Updated motherboard BIOS to latest version.
- Checked every setting of new BIOS, PCI-E slot is selected, boot drives are in right order.
- Attempted to boot in safe mode.
- Disconnected and reconnected every drive between attempting to boot.
PC current specifications:
- Intel DP35DP Motherboard
- Intel Core 2 Duo 2.66GHz CPU
- Samsung SSD + 2x HDD Drives
- 4GB RAM
- Msi R9 390 8GB GPU (new)
- Msi GeForce 630 GPU (old – working)
- 750W PSU (within range for GPU and only a couple of weeks old)
- Windows 10 Pro 64bit (no install disc available)
Best Answer
I managed to solve the issue, so I am posting for anyone who might have the same problem.
Despite PCI-E being backwards compatible, there was an issue with my particular model of motherboard (Intel DP35DP) making it incompatible with the graphics card, even after updating the BIOS.
My solution was to buy a new motherboard, and this solved the issue completely.