EU Gigabyte Mainboard MC12-LE0 Re1.0 AMD B550 AM4 Ryzen
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I don't mind asking a dumb question but I've been through the whole thread of 31 pages now, more than once.
I purchased two of the boards + cooler from the ebay seller. I purchased the closest to a QVL memory these_ones and an Amazon refurb Ryzen 7 5700X. I went through the whole dance of updating BMC and BIOS. BMC updated, BIOS not, still reads F06 and no POST, no output from VGA nor serial.The BIOS upgrade to F15 and to F13 goes to 100% and powercycles but to the same BIOS.
Going by the posts, the likely problem barring faulty CPU (new one delivering tomorrow) and memory not being _exacly_ compatible as the manufacturer claims, it leaves me it seems with a too new a CPU for the BIOS, so I need to find an older CPU to update the BIOS first to see if that cures the problem of no POST. The BMC does detect the correct CPU at present it seems, but the memory is mis-identified with all slots populated when in reality there is only one or two in. Used one only then two. A banks from thread but also B for good measure.
So the dumb question is this: is there no alternative to sourcing an older CPU to do the BIOS flash?
I purchased two of the boards + cooler from the ebay seller. I purchased the closest to a QVL memory these_ones and an Amazon refurb Ryzen 7 5700X. I went through the whole dance of updating BMC and BIOS. BMC updated, BIOS not, still reads F06 and no POST, no output from VGA nor serial.The BIOS upgrade to F15 and to F13 goes to 100% and powercycles but to the same BIOS.
Going by the posts, the likely problem barring faulty CPU (new one delivering tomorrow) and memory not being _exacly_ compatible as the manufacturer claims, it leaves me it seems with a too new a CPU for the BIOS, so I need to find an older CPU to update the BIOS first to see if that cures the problem of no POST. The BMC does detect the correct CPU at present it seems, but the memory is mis-identified with all slots populated when in reality there is only one or two in. Used one only then two. A banks from thread but also B for good measure.
So the dumb question is this: is there no alternative to sourcing an older CPU to do the BIOS flash?
I had similar issues. When I populated only 2nd slot (if I remember looking from cpu) it booted for me and I was able to flash bios through the uefi console - any other memory configuration was not booting at all. And it was no a CPU problem.
Try it again.the inventory items are update by the BIOS in successfull POST.
as long as you don't have a POST you will see the last working components.
Thanks Szala and RolloZ170. I will try again all other memory slot permutations. I have used Supermicro BMCs and HP iLos but these from GigaByte are nice and modern but their procedures are madening.
So, no old CPU, no boot ?
I get the POST = read and update BIOS. That was clear. Isn't there a way to do it with existing components? It is wasteful to have to buy an old CPU just to update a BIOS when there is a BMC that can update itself but not the BIOS on its hardware. In the hope of a way.
So, no old CPU, no boot ?
I get the POST = read and update BIOS. That was clear. Isn't there a way to do it with existing components? It is wasteful to have to buy an old CPU just to update a BIOS when there is a BMC that can update itself but not the BIOS on its hardware. In the hope of a way.
the BIOS chip is connencted to the AM4 socket. the BMC can only access the BIOS chip if CPU is powered and the secure-chip inthe IODIE is working, this needs memory. i can't check if this works with not supported CPU.
also note in cold boot the machine needs 2 minutes and more to come up, black screen before.
if you are loc. in EU i can borrow you a Ryzen 3 3100.
I think last time I was doing that with 5700 or 5600 so not sure if CPU is an issue.
Oh my word. More to follow probably. There is post now. I do not know what was, the leaving it off overnight again, or the removal of one memory and moving the only one left into B1. Did you see that? B1 !!! Bonkers!
Thanks, this was the ticket to getting my board from F06 to F15.
for anyone struggling with this, grab AfuEfix64.efi from Custom UEFI/BIOS - Aptio & AMBIOS
the run that from the EFI Shell: AfuEfix64.efi image.bin /p /b /n /l /k /reboot
then select option E
Moving to b1 is solution. And someone also posted how to do things in uefi so now you have everything.
Well too early it seems. B1 got Post and got to read the new BIOS, F15. Install the second identical stick to B0 and no post.
I've moved to A0 and A1 and no post either. I'm going through the permutations now.
I've moved to A0 and A1 and no post either. I'm going through the permutations now.
on other gigabyte AM4 B550 boards the RAM slots are called A1/A2-B1/B2
A0/A1 = A1/A2
B0/B1 = B1/B2
2 DIMMs A2/B2 = A1/B1 at MC12-LE0
Thanks but there seems to be some sort of incompatibility.
I have two identical sticks. Any one only stick, only posts if on B1. That ruled out a faulty stick.
When using both sticks, one stick on each slot A1 & B1 (and sticks swapped but same slots), or A0 & B0, fails to post.
I can only post with two sticks if using A0 & B1 which I imagine are two halves of different channels. But the worse part of it is that the inventory still only recognises one, the one on B1. Any ideas?
p.s. I'm on BMC Firmware 12.61.21 and bios F15
I have two identical sticks. Any one only stick, only posts if on B1. That ruled out a faulty stick.
When using both sticks, one stick on each slot A1 & B1 (and sticks swapped but same slots), or A0 & B0, fails to post.
I can only post with two sticks if using A0 & B1 which I imagine are two halves of different channels. But the worse part of it is that the inventory still only recognises one, the one on B1. Any ideas?
p.s. I'm on BMC Firmware 12.61.21 and bios F15
Are you even able to boot into the system and do some stress tests? If everything else works than it could be damage memory channel (either paths on mobo, or cpu controller)
What memory and cpu are you using?
ok but I fail to see how it can be (not challenging it, just trying to follow the logic).
CPU fault can make see only see any one of two sticks at the time.
Same for the board.
Is that something you're sure of?
I can boot with any one of the two sticks, yes. I could put a live usb, download a stress utility and run it .
Again thanks for the ideas but would a damaged memory channel show only when two sticks used?
Memory: these_ones "NEMIX RAM 16GB Replacement for Samsung M391A2K43BB1-CTD DDR4-2666 ECC UDIMM 2Rx8". I bought two sticks of 16 GB each.
CPU: Ryzen 7 5700X