- Sep 7, 2021
- 2
- 0
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Hey all, just posting this to try and help some people as it's a unique issue I've had.
Quick note: I have one more step to try, which is trying a Ryzen 3600 CPU that I have - to isolate this issue to the CPU or Motherboard.
Trying to boot a Ryzen 5600X with an MSI Tomahawk X570 motherboard. Issues and order of them are below:
With all parts in place, booting up shows the following Debug LED's: BOOT, VGA and CPU (DRAM is Off). Tried just one RAM stick in the 2nd slot (Was using slots 2 and 4 as per recommendation for 2 sticks). Trying to remove GPU and RAM had the same result.
I tried flashing the BIOS, which appeared to be working as the LED at the back of the motherboard flashed for 5-6 minutes. But then the PC didn't reboot as it should. In some cases I waited up to 30 minutes.
I did a CMOS reset, which showed the following Debug LED result: BOOT, VGA and DRAM On. CPU Off.
Long story short I then removed all parts from the motherboard, including the CPU. I left only the 24-pin motherboard and 8-pin CPU power supply cables in.
I was then able to successfully complete a BIOS update, as the PC did restart this time. On booting up, ONLY THE CPU Debug LED was on. (Which made sense)
As soon as I put the CPU back in, I get the following LED Debug lights: BOOT, VGA and CPU. DRAM was Off.
I also had several instances where resetting the CMOS would result in the Debug LED's randomly interchanging their pattern, but always having 2 or 3 lights on. Not consistent at all.
My final step is to try my Ryzen 3600 CPU in the motherboard, to isolate this issue to the 5600X CPU or the motherboard. I can't do this for a couple of days as I need to wait for thermal paste to come in the mail.
Would be cool if it were possible to get into the Bios without needing a CPU. Alas we need to take these steps.
Quick note: I have one more step to try, which is trying a Ryzen 3600 CPU that I have - to isolate this issue to the CPU or Motherboard.
Trying to boot a Ryzen 5600X with an MSI Tomahawk X570 motherboard. Issues and order of them are below:
With all parts in place, booting up shows the following Debug LED's: BOOT, VGA and CPU (DRAM is Off). Tried just one RAM stick in the 2nd slot (Was using slots 2 and 4 as per recommendation for 2 sticks). Trying to remove GPU and RAM had the same result.
I tried flashing the BIOS, which appeared to be working as the LED at the back of the motherboard flashed for 5-6 minutes. But then the PC didn't reboot as it should. In some cases I waited up to 30 minutes.
I did a CMOS reset, which showed the following Debug LED result: BOOT, VGA and DRAM On. CPU Off.
Long story short I then removed all parts from the motherboard, including the CPU. I left only the 24-pin motherboard and 8-pin CPU power supply cables in.
I was then able to successfully complete a BIOS update, as the PC did restart this time. On booting up, ONLY THE CPU Debug LED was on. (Which made sense)
As soon as I put the CPU back in, I get the following LED Debug lights: BOOT, VGA and CPU. DRAM was Off.
I also had several instances where resetting the CMOS would result in the Debug LED's randomly interchanging their pattern, but always having 2 or 3 lights on. Not consistent at all.
My final step is to try my Ryzen 3600 CPU in the motherboard, to isolate this issue to the 5600X CPU or the motherboard. I can't do this for a couple of days as I need to wait for thermal paste to come in the mail.
Would be cool if it were possible to get into the Bios without needing a CPU. Alas we need to take these steps.
Last edited:
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