Gigabyte MJ11-EC1 EPYC 3151 Mystery

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rtech

Active Member
Jun 2, 2021
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Is that at UEFI shell waiting for input? Or with Linux running?
Linux booted idle. I have noticed some servers in UEFI do consume a lot of power but if you boot into OS power consumption will be lower.
 

MSameer

Active Member
May 8, 2025
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Linux booted idle. I have noticed some servers in UEFI do consume a lot of power but if you boot into OS power consumption will be lower.
I will wait for it then to finish the memtest rounds (66 watts heater mode), install Linux and see.

Thank you for your response :)
 

HavoK

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Feb 24, 2022
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_Dejan_

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Aug 18, 2022
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MJ11 use AST2500 AMI which is same as use motherboard MC12 and user zr0dfx write in MC12 thread that new FW is availible... So periodic chck on gigabyte support site of MC12 board if there is new FW do job but it can be also parsed by some script and send you notification ...
 

Wari

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Aug 5, 2025
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Hello o/
Thought I might ask here as well, since this is the only place I found thats semi-acitve. I recently got a MJ11-EC1 rev1.0 board, but i seem to have some issues with it: the first one is the P_V5A sensor reads 4.2919V, while the other P_V5S reads the correct (used a multimeter to test the PSU, and it read ~5V) ~5V. The second one is the BMC shows a memory from the previous configuration that it had, and I can't seem to get it to show the RAMs that I have, tried with multiple sticks, while reseting BIOS with the CMOS jumper. At this point I am a bit hopeless, maybe someone has any idea what could be the cause of the issues?
 

ronkapa

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Mar 11, 2024
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Hi, some documentation of my experiences, I don't remember if all were mentioned in this thread.
Confirming that Samsung M393A4K40BB1-CRC0Q (appears to be B-die) works 4 DIMMs 2400Mhz on all Auto timing settings (tested with memtest, y-cruncher, occt). Default bios settings ran the ram at 2133Mhz with 4 DIMMs.
If anything, even just the cable, is plugged into the internal USB-header the system will only boot(or access bios) from a cold boot (full power off), otherwise a boot-loop occurs after the POST selection screen.
Edit: It turns out not being able to access the BIOS/boot menu is caused by an SSD (with an OS installed) being connected with a SSD-USB adapter. Or maybe just the SSD-USB adapter by itself. Also, to clarify the system would boot fine from the USB-SSD but you could not enter the bios when booting.
Disabling Quiet-boot from the bios limits the host OS (at least Windows) screen resolution to 800x600 (without a separate GPU) over remote control, otherwise the connected display resolution is used. Did not notice to test without a display still attached.
I haven't received SATA-cables or m.2 breakout cables yet, but plan to run a ConnectX3 nic in the m.2 lanes.
 
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rkantos

New Member
Mar 17, 2023
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Finland
Is someone aware of a riser for the slimsas connector that is economical for more PCI-E lanes than x1?

Are there any experiences using different types of ASM2824 cards like the ones meant for M.2 drives?
For example something like this https://www.aliexpress.com/item/1005005812978939.html

Additionally what should currently be the most economical option for two x4 lanes? Should one of the slimsas PCI-E cards work with a riser with the crossflashed bios and bifurcation enabled?
 

xevz

New Member
Sep 26, 2024
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i have an issue with the web ui of my board. I connected to it first time and enabled all one touch firewall (basic) settings. afterwards i was not able to access the web ui anymore. It is reachable via ipmitool but really want the web interface to be available again. Can someone help me with that?

currently i am connected directly with static IPs.

what i tried:
cold reset through ipmi tool
clearing cmos (but the ipmi has its own flash i think)
removing battery for a couple of hours.

there is also a jtag interface but i do not know the pinout. i saw in one post that it was used for serial communication. Is it SWD?

thanks in advance!
I had the same issue over the weekend. I uploaded the wrong image into the firmware flashing tool, and after it told me off and reverted it wouldn't come up on the network again.

Some investigation showed that it networked just fine, it had just reverted to VLAN 1contrary to the settings that were untouched according to ipmitool.Disabling VLAN tagging, enabling it and restarting the MC made it come up again on the correct VLAN but it didn't listen on HTTP.

I was fortunately able to login over SSH and with the help of the error message logged by lighttpd (something similar to (network.c.290) setsockopt: No such device and some digging around with Ghidra (unfortunately it is a modified version of Lighttpd 1.4.35 so the upstream source code didn't help me) it turns out that it gets the network interface to listen to from /conf/ncml.conf, which was incorrect in relation to my actual VLAN tag (interface_name=bond0.1 rather than interface_name=bond0.201).

Granted, there are probably more issues that can result in this scenario, and the fix requires SSH or serial console access, so not sure how useful this is for anyone else.

Lighttpd would probably start and respond just fine if I'd just reset the network config and reconfigured my switch port, but I didn't know that at the time.
 
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huas

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Oct 23, 2025
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MJ11 use AST2500 AMI which is same as use motherboard MC12 and user zr0dfx write in MC12 thread that new FW is availible... So periodic chck on gigabyte support site of MC12 board if there is new FW do job but it can be also parsed by some script and send you notification ...
Is there also a way to get a newer Bios? In this package is a Bios but its not compatible right?
 

dreunion61

New Member
Nov 22, 2023
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MJ11 use AST2500 AMI which is same as use motherboard MC12 and user zr0dfx write in MC12 thread that new FW is availible... So periodic chck on gigabyte support site of MC12 board if there is new FW do job but it can be also parsed by some script and send you notification ...
You talk about BMC fw, not BIOS fw, right?
 

huas

New Member
Oct 23, 2025
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BMC is working fine acording to _Dejan_ but im asking about Bios if there is a possibility :)
 

hmartin

Well-Known Member
Sep 20, 2017
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Is someone aware of a riser for the slimsas connector that is economical for more PCI-E lanes than x1?

Are there any experiences using different types of ASM2824 cards like the ones meant for M.2 drives?
For example something like this https://www.aliexpress.com/item/1005005812978939.html

Additionally what should currently be the most economical option for two x4 lanes? Should one of the slimsas PCI-E cards work with a riser with the crossflashed bios and bifurcation enabled?
I'm not sure what's being asked here with respect to the "more PCIe lanes than x1"

The cheapest option for two x4 devices would be an NVMe to x4 adapter and SlimSAS 4i to PCIe adapter. Boot from SATA.

Next cheapest option would probably be SlimSAS 8i to PCIe and then a bifurcation card to become two PCIe x4, although depending on the cost of the bifurcation card you might be better off just going with SlimSAS 8i and 4i to PCIe.

BMC is working fine acording to _Dejan_ but im asking about Bios if there is a possibility :)
This seems unlikely as the MJ11 is based on Zen+ and the latest MC12 BIOSes doesn't support older than Zen2, IIRC.
 

Bingo600

New Member
Sep 15, 2024
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Could a kind soul post a link to the updated BMC firmware that could be used on the MJ11 boards

TIA
Bingo
 

RolloZ170

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Apr 24, 2016
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Could a kind soul post a link to the updated BMC firmware that could be used on the MJ11 boards
gigabyte's BMC FW is universal to all motherboards with same BMC chip(e.g. AST2500)
use the link from e.g. MC12-LE0
Zwischenablage_10-23-2025_02.jpg
edit: i have a Gigabyte MS33-CPA-V10 OEM motherboard not listed anywhere at gigabyte site, but the BMC FW from any MS33 motherboards works for me, they are all same link, MS03/MS33/MS73 all same link, same file.
 
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