Gigabyte MJ11-EC1 EPYC 3151 Mystery

Notice: Page may contain affiliate links for which we may earn a small commission through services like Amazon Affiliates or Skimlinks.

kedzior

Active Member
Mar 21, 2018
126
27
28
51
Poland
Hey, bought 3 G431-MM0 servers (natural habitat of MJ11-EC1), doing some modifications, so they can feed my OCP v1 GPU server's 3x80A power.

4x SXM2 V100 16GB, baby!

That means, I will not need the 10x PCIe Backplane boards.

If someone needs a CPBG8A0 Backplane board for 10x PCIe using the MJ11-EC1, let me know, I have 3 of them for sale, shipping worldwide.
50 eur+shipping/each (SAS cable not included, I'll still need that, cheaper then ebay.

If you really need it, I could give you the empty 4U server case (without HDD bay, PSUs) too, but that's heavy, so shipping would be very expensive.
I'm building something and I'm wondering if anyone connect this PCIe Backplane to normal ATX power supply direct ?
 

Debtor8100

New Member
Dec 12, 2022
16
1
3
I've managed to get myself quite locked out of my machine. My server running password manager had some trouble yesterday and as a result I lost my IPMI password and access to the host OS (TrueNAS).

I can still SSH to BMC. Is there any way to reset the IPMI interface password from there? Or is there any way to reset BMC to defaults on this board?

My only other option available seems to be to get VGA cable and adapter so that I can get video output from the VGA port, reset the TrueNAS password that way and then reset IPMI password through ipmitool inside TrueNAS.

E1: ... And the VGA does not work on my board. This is not a good situation.
E2: Phew, had one SSH Public key sent to server. Got access again!
 
Last edited:

chobpt

New Member
Jun 27, 2025
2
0
1
I got the full box with the 10x pcie and have been losing my mind on why it won't even one GPU. Any ideas?

- tried in F09 and F02
- Tried enabling SL_SAS to pcie, and change the different pcie modes
- updated BMC (pcie inventory shows no pcie devices)
-Booted windows and the Device manager didn't show anything, although it shows many pcie bridges
- power is connected to the board
- 3 psus are plugged, 1 orange (also tried with just 1 or just 2 psu)
- tried with both SMT, AER enabled and disabled
- tried a P40, a 2080ti, a 1060 and a sata controller

Getting desperate as I spent 300 on this apparent 4U paperweight

Thanks
 

chobpt

New Member
Jun 27, 2025
2
0
1
Has anyone successfully booted from a disk attached to the integrated SATA controller (SATA0-4)? The boot drive I carried over from my old system gets detected but never shows up in the boot options.

A bit late for the party but for reference, a workaround would be to use easy2boot to manually boot from the drive. Not elegant but good for emergencies