dxe bios pci bus enumeration 94

reddit.com › r/homelab › h12ssl-i stuck at bios pci bus enumeration 94

r/homelab on Reddit: h12ssl-i stuck at bios pci bus enumeration 94

October 26, 2023 -

Long story short the iommu setup wasn't idea on my board so I did a bios update to see if it would split things up better and since the update it's just sitting at the boot screen with the dxe--bios pci bus enumeration 94. It's been about an hour now so I know something must be wrong at this point. Also when in the ipmi it still lists the old firmware as being on the board.

Any ideas?

Top answer

1 of 3

Have you tried resetting CMOS?

2 of 3

Try turning it off. Then upgrade the bios again via IPMI? Sounds like maybe you didn't flash it successfully the first time. You should also not preserve anything when asked during the bios upgrade. Always best to start fresh.

Supermicro

supermicro.com › support › faqs › faq.php

FAQ Entry | Online Support | Support - Super Micro Computer, Inc.

May 27, 2022 - Question 120U-TNR issue : Server keeps on rebooting after displaying "DXE-BIOS PCI BUS Enumeration 94" DEL key has no effect.

reddit.com › r/homelab › x11sdv-8c-tp8f - stuck on dxe - bios pci bus enumeration code 92

r/homelab on Reddit: X11SDV-8C-TP8F - Stuck on DXE - BIOS PCI Bus Enumeration Code 92

April 17, 2025 -

Hello, I got 2x SuperServer E300-9D-8CN8TP with X11SDV-8C-TP8F motherboards from my work place. I found some AC adapters that power on the device and now am troubleshooting them. They startup and go to "DXE - BIOS PCI Bus Enumeration" with a code of 92, it stays there and then reboots. I plugged in the ethernet cable to the IPMI port in hopes that I could do something from there. The BMC got the ip 192.168.1.152. If anymore information is needed I will provide it to the best of my abilities. Thank you.

tldr: Does anyone know how I could get passed DXE - BIOS PCI Bus Enumeration Code 92 on a X11SDV-8C-TP8F?

After this part the system will restart. The right label is IPMI, when I go to 192.168.1.152 it asks for a username and password. I put the username as ADMIN and the password as 002590B8FDE9 but that doesn't work. I don't see any other place that lists a password for IPMI. Top down view of the E300-9D-8CN8TP with X11SDV-8C-TP8F motherboard

Edit: So I got 32GB DDR4 ECC RAM and with that I was able to boot and get into bios. There are other issues involving code 79 but that will have to be a different issue.

Thank you for your help!

Top answer

1 of 5

If you've cleared CMOS, try different ram? Could be bad board?

2 of 5

Check the event logs. I have the same board the it gets in a reboot loop when there’s a faulty ram module plugged in.

Supermicro

supermicro.org.cn › support › faqs › faq.cfm

FAQ Entry | Online Support | Support - Super Micro Computer, Inc.

June 15, 2020 - Question C9X299-RPGF With i9-10900x,install a V100 GPU in slot1 or slot7, hear 5 short beeps during POST, and screen hang at 94, "DXE:BIOS PCI bus enumeration"

reddit.com › r/supermicro › pci bus enumeration

r/supermicro on Reddit: PCI Bus Enumeration

August 20, 2022 -

Hello. I am new to Supermicro servers so please bear with me. I just purchased a 1u Xeon system to run pfsense.

When it boots, it gets stuck on DXE--BIOS PCI Bus Enumeration... 92, then eventually loops back only to get stuck here again.

I have already tried removing all peripherals and CMOS battery but no luck. I have a deadline to get this system deployed so any help is much appreciated.

Top answer

1 of 2

What other hardware do you use? I get this with some m.2 SSDs (with some configurations and also on other boards) they sometimes seem to conflict other things.

2 of 2

Is this of any use? https://support.snapstream.com/hc/en-us/articles/360014569914-SnapStream-Server-Boots-to-SuperMicro-PCI-Bus-Enumeration-Message

VOGONS

vogons.org › viewtopic.php

Error code 94 on pci diagnostic card \ VOGONS

January 18, 2021 - Basically code 0x94 should be interpreted as 0x0205 and that means "PCI bus enumeration". Makes a bit better sense I suppose... Also, I found another board that has a similar problem: https://rog.asus.com/forum/showthread.php?748 … ode-94-Problems

reddit.com › r/homelab › boot issue with supermicro e300-d9

r/homelab on Reddit: Boot issue with Supermicro E300-D9

December 19, 2021 -

Got a SP E300-D9-4CN8TP brand new from Newegg.com and it's stuck at booting time with code DXE--BIOS PCI Bus enumeration 92. It reboots after ~10sec at this point. It's doing this with no storage attached and only one RAM module attached. I can't access to the BIOS neither. I have tried all I could imagine including reset CMOS and acceding using IPMI getting same result. Very poor experience for an almost 1K mini server. Idk what I'm missing here.

Top answer

1 of 3

No storage? I'm using an e300-8d but I've never tried booting it without a drive.

2 of 3

Do you have any PCI cards installed?

Tom's Hardware Forum

forums.tomshardware.com › home › systems

[SOLVED] - New mobo and cpu won't boot | Tom's Hardware Forum

April 17, 2021 - If you can't get into the BIOS in this configuration then start looking at your PSU, CPU, and GPU as the culprit. ... Well the manual says 94 is PCI Bus Enumeration and 0D is 'reserved for future AMI SEC code errors'. Since your testing points to memory, have you tried your RAM in a different ...

GitHub

github.com › tianocore › edk › blob › master › Sample › Bus › Pci › PciBusNoEnumeration › Dxe › PciEnumeratorSupport.c

edk/Sample/Bus/Pci/PciBusNoEnumeration/Dxe/PciEnumeratorSupport.c at master · tianocore/edk

// if we can find something, it means we are in the 2nd round of enumeration or the device has no rom image · // else we should try get it from Configuration Table. ... PciIoDevice->PciBar[BarIndex].Length = PciIoDevice->PciBar[BarIndex].Length | LShiftU64 ((UINT64) Value, 32);

Author tianocore

ServeTheHome

forums.servethehome.com › index.php

Supermicro AOC-S3008L causing boot loop code, "94 PCI ...

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Unraid

forums.unraid.net › home › unraid os support › general support › in need of some help with supermirco motherboard issues

In need of some help with Supermirco motherboard issues - General Support - Unraid

March 25, 2018 - So I purchased a Supermicro X11SAT-F-O motherboard. I got this since I wanted to use the NVMe support this board offered. Also I have a new Xeon E3-1275v6 CPU and 64gb of DDR4 ECC ram. From day one I had some issues with the board. Random stuff etc. Then after having Jon from Lime-Tech remote it ...

Nutanix Community

next.nutanix.com › how-it-works-22 › new-kb-articles-published-on-week-ending-march-5-2022-40658

New KB Articles Published on Week Ending March 5, 2022 | Nutanix Community

March 6, 2022 - KB 12776 - NX Hardware: Node hung at DXE--BIOS PCI Bus Enumeration · KB 12789 - Era - Linux operating system pre-requisites (/tmp and /dev/shm directories) KB 12793 - Foundation - Cluster create failure for new HPE DX nodes and AHV hypervisor · KB 12795 - Windows VSS snapshot failed with VSS shadow copy Service error: The security ID structure is invalid ·

TweakTown Forums

tweaktownforum.com › forum › tech-support-from-vendors › asrock › 51203-asrock-extreme-4-stuck-at-error-93

Asrock Extreme 4 stuck at Error 93 - TweakTown Forums

DXE Initialization (PCH module ... 8F - OEM DXE initialization codes 90 - Boot Device Selection (BDS) phase is started 91 - Driver connecting is started 92 - PCI Bus initialization is started 93 - PCI Bus Hot Plug Controller Initialization 94 - PCI Bus Enumeration 32 95 - PCI ...

Tom's Hardware Forum

forums.tomshardware.com › home › motherboards

Boot issues I've been having. | Tom's Hardware Forum

February 10, 2015 - The Hero has 2x PCIe x 16 slots (marked by the red colour) can you try putting your GPU in the second PCIe x 16 slot and see if it works? ... Hi there, Q-codes 94, 96 does indeed sound like your GPU (I'm unsure what AE is trying to say though), considering the fact that the Q-code description tells something about the PCI slot in which your GPU is normally placed in.

CFD Online

cfd-online.com › Forums › hardware › 247483-sm-issues-h12dsi-n6-2.html

SM issues H12DSi-N6 - Page 2 -- CFD Online Discussion Forums

February 8, 2023 - There is an amibios post code manual on the SuperMicro website. The one I found is applicable to boards up to the X11 generation. Not sure if there

Stack Overflow

stackoverflow.com › questions › 54249383 › bios-stuck-after-pcie-enumeration

x86 - BIOS Stuck after PCIe Enumeration - Stack Overflow

Top answer

1 of 1

We got it working. It seems that the expansion ROM was enabled. It works fine after disabling it. Thanks @Margaret Bloom.

GitHub

github.com › xCuri0 › ReBarUEFI › issues › 265

Boot-loop (sometimes) a few times on BIOS PCI Bus Enumeration · Issue #265 · xCuri0/ReBarUEFI

January 4, 2025 - I decided to try UEFI Tool anyway and it would get past that phase of boot but would randomly reboot anywhere during the boot phase. Sometimes I could get to the BIOS (and I immediately reset everything, saved, rebooted to BIOS facing same random reboot issues).

Author xCuri0

Nutanix

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Overclock.net

overclock.net › home › forums › amd › amd motherboards

Asus Dark Hero Q-CODE 94 impossible boot | Overclock.net

April 25, 2022 - UPDATE: i've just tried reseating both nvme, mounted the GPU on the second pcie slot, tried a 780 ti insteaad of the 3090 and I'm still unable to boot (still stucked to q-code 94). So clearly not a gpu issue or something, dunno how to proceed now... ... Ok it's not your GPU that is in question, you just have to see the other PCIe (try a single ram memory on each slot, see if a pin is not bent on the CPU chipset). Have you checked all USB devices? Start the PC with the bare minimum (without cooling system, unplug all sata and molex ports and without M2 nvme SSDs. And finally reflash the bios.

OCAU Forums

forums.overclockers.com.au › threads › computer-not-getting-past-post-screen.1268214

SOLVED - Computer not getting past POST screen | OCAU Forums

Hi all, i got a headache for ya. System Specs: Intel i7 7700k Nvidia GTX 1080ti Gigabyte Z270x-Gaming5 Samsung 960EVO SSD Samsung 500GB 850 SSD 2TB...