Changing from a Ryzen 3 1200 to a Ryzen 7 5800X causes the motherboard to stop working with VGA.
Changing from a Ryzen 3 1200 to a Ryzen 7 5800X causes the motherboard to stop working with VGA.
GPU model: XFX 6600 XT
CPU: RYZEN 3 1200 4C/4T
Processor: RYZEN 7 5800X 8C/16T
Motherboard: MSI MPG x570 Gaming Plus
BIOS Version: 7C37vAF3 (latest)
RAM: 4x8GB G.Skill Ripjaws V F4-3600C14D-16GVKA (CL14-14-14-34 1.45V)
Power Supply: be quiet!
System Power: 9 600W
Issues encountered:
- 5800X initially worked but failed after RMA return.
- New Ryzen 3 1200 temporarily fixed it.
- Board accepts new CPU but freezes on VGA with EZ-Debug LED.
- Only bare system, one RAM stick, no drives, keyboard, and VGA only.
Actions taken:
- Reseated components multiple times.
- Changed BIOS defaults.
- Reset BIOS without AC or battery didn’t resolve.
- Used default settings, swapped CPU, unsuccessful.
- EZ-Debug loop detected: CPU → VGA/BOOT → OFF → reset → CPU repeatedly.
Notes:
- Considered upgrading to a SeaSonic 750W 80 Gold PSU.
- If problem persists, check IOMMU and precision overdrive settings.
- Cache hierarchy instability on Ryzen 3 1200 may cause boot resets.
Unfortunately, I don't think so. I could easily get a used copy. However, having a faulty CPU twice is... unpleasant. I returned the old one two weeks ago and received the new one with issues just two days later (sealed). I haven’t tried re-seating the M.2 slots, but that seems unlikely. What concerns you most? Is it the power delivery system or the PSU? I’ve been upgrading my 3400G PSU and got a x570 UD from GigaByte.
I recommended the M.2 reseat based on past experience. My 5900X was experiencing boot problems similar to yours during installation—specifically cycling in the debug LED—because the M.2 wasn’t seated correctly. The CPU’s PCIe controller might struggle under those conditions. If power delivery is the issue, it could stem from the 12V rail on the power supply unit. Both the CPU and GPU connectors rely on that rail. You mentioned you suspect problems regardless, so perhaps the 5800X’s higher power consumption is exacerbating the situation.
I have a modular sharkoon 600W available as a backup, with its own 12V supply per connection. I’m considering using it.
Trying to share this info uses minimal energy, typically under 150W (around 60–100W across several setups). Power output could make POST difficult. Have you considered placing the GPU in a slot that uses dedicated PCIe lanes? Also, what caused the problem with the earlier CPU?
I tested both slots again, but the issue persisted. I cleaned the contacts carefully to ensure proper connection. The earlier chip functioned until BIOS glitches appeared. I enabled the U-key setting, yet data transfer to USB failed. That was resolved. The CPU with cache hierarchy had problems on the Gigabyte x570 UD. I plan to use that board with my spare PSU tomorrow. My wife isn’t happy right now, hehe.
Gigabyte is performing well with both the old PSU and the spare unit; using the spare is a safer choice even though the Sharkoon 600W 80 Bronze is outdated. The MSI board seems to be fine after I reflash it—old PSU or spare doesn’t matter, and the slot isn’t an issue. It looks like the board is functioning properly. In any case, the GigaByte model works better overall, though I’m missing PCIe Gen 4 and only have one M.2 slot. After a one-hour Cinebench R23 run, CPU temps reach around 82°C, which is acceptable for default settings. Note: On GigaByte X570 UD, you’ll need to turn off IOMMU if you want it to show up in searches. IOMMU can cause the PC to restart without a BSOD when entering sleep, hybrid, or suspended states.