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Reddit
reddit.com › r/homelab › dxe code on boot usb device detection
r/homelab on Reddit: Dxe code on boot USB device detection
August 11, 2022 - How to Get USB Dongles (Security Keys, Hardware) Working in a Hyper-V VM? r/HyperV • · upvotes · · comments · Msi z490 ace code 63 cpu dxe initialization is started · r/MSI_Gaming • · 2 · comments · Booting from USB/SD card on old PC. How? r/vintagecomputing • ·
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PCPartPicker
pcpartpicker.com › forums › topic › 398015-upgrade-to-new-motherboard-has-post-halting-at-system-agent-dxe-initialization
Upgrade to new motherboard has POST halting at System Agent DXE initialization - PCPartPicker
This seems different from the scenarios I have seen in Google searches in that the problem seems to be the initial supply of power. But I'm not a computer engineer, so... After that, I started incrementally reconnecting drives, starting with the boot drive. I was able to boot to Windows 10 successfully. Then I reconnected USB headers, the GPU, and front panel audio. Up to that point, everything continued to work provided I followed the same startup routine as above. So now one of my problems is solved - the last issue between this rig mostly working and completely working is how to get it to boot without special provisions.
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Reddit
reddit.com › r/homelab › can’t get past the dxe–cpu initialization on supermicro mb
r/homelab on Reddit: Can’t get past the DXE–CPU initialization on Supermicro MB
October 24, 2024 -

This is my first time getting into more enterprise hardware. I got a, Supermicro H11SSL-i with an Epyc 7702 combo from ebay. along with A-Tech 128GB 4x 32GB DDR4 2133 MHz ECC LRDIMM Cooler Master MWE Gold 1050 PSU I can’t get past the DXE–CPU initialization with code 63 I can get into BMC the Firmware Revision is 01.52.00 and the bios version is 2.1 I’ve tried only using one stick placing it where it says in the manual. tried all of the 4 of my sticks (32gb 2133 MHz ECC LRDIMM DDR4) cleared the CMOS reseated the CPU all the fans spin up fine when it starts. sometime i get a DXE–USB initialization with code 62 i’ve unplugged and plugged in the PSU Any Sugestions would be appreciated

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Nzxt
cdn-g.nzxt.com › dl › 1621349145-nzxtn7z390bootcodes.pdf pdf
bios boot codes
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 · 95 · PCI Bus Request Resources · 96 · PCI Bus Assign Resources · 97 · Console Output devices connect · 98 · Console input devices connect · 99 · Super IO Initialization · 9A · USB initialization is started ·
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Techilop
techilop.com › cpu-dxe-initialization-is-started
CPU Dxe Initialization Is Started - Common Causes And Fixes!
November 9, 2024 - If the power supply is insufficient or failing, it may struggle to support the CPU initialization process. Verify that the power supply meets your system’s requirements and check all connections to ensure proper power delivery. Importance of Updates: Updates often resolve compatibility issues, stabilize memory settings, and address bugs that cause DXE errors. Update Procedure: Methods such as USB BIOS Flashback allow users to update firmware even if the system cannot boot.
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Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
Stuck on cpu dxe initialization then restart | Tom's Hardware Forum
February 8, 2023 - I have gigabyte z170x gaming 5 and I7 6700k and out of 10 to 15 turning on or restart the PC the computer will stuck on debug code cpu dxe initialization for 5 seconds then turn off then turn on automaticlly to try for a second attempt and it post and boot to desktop it happen only 1 time out of 10 times sometimes less maybe out of 7 times .
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Supermicro
supermicro.com › support › faqs › faq.php
FAQ Entry | Online Support | Support - Super Micro Computer, Inc.
September 1, 2017 - Question We’ve one Supermicro server using DP motherboard, can’t boot and stop in DXE-USB Device Detection screen. Can’t touch any key (TAB/DEL/F11/F12).
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Techi Loves
techiloves.com › home › cpu dxe initialization is started – fixing q-code errors!
CPU DXE Initialization Is Started - Fixing Q-Code Errors! - Techi Loves
January 6, 2025 - IOH DXE Initialization prepares the I/O Hub (IOH) for communication with the CPU and other system components. It ensures the correct operation of peripherals like USB ports and storage devices during startup.
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Reddit
reddit.com › r/buildapc › first build: no screen and error - pch dxe initialization is started. i need some advice. thank you!
r/buildapc on Reddit: First build: No Screen and Error - pch dxe initialization is started. I need some advice. Thank you!
September 25, 2021 -

Hello guys,

So i decided to try building my first gaming PC with the following components:

- AMD Ryzen 5 5600G 6x 3.90GHz
- Asus ROG Strix B550-E Gaming Motherboard Socket AM4; 
- ASUS ROG Strix GeForce RTX 3060 Ti V2 OC; 
- Corsair Vengeance LPX 32GB (2 x 16GB) DDR4 3200MHz
- SAMSUNG 970 EVO Plus

So far, it was actually really fun to progress with the setup of all components etc.

However, as I try now to power on my computer, I don't get any screen on my monitor. I've got the error "pch dxe initialization is started" via my MB number screen.

I've reviewed various posts now and some things: starting without GPU, changed both RAM and slots and also tried them separately). I also think, that my MB does support the required bios for CPU. Nevertheless, i could not even try to update bios, since I don't get any display on my monitor screen.

As i don't get anything displayed on my monitor with and without my GPU and by ruling out the possibilities described, I would guess that my CPU might be damaged?

Maybe you guys have some ideas. I would bring my computer to a service shop if nothing will help. However, I would appreciate your help in any case.

Best

Find elsewhere
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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...
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Reddit
reddit.com › r/buildapc › error code pch dxe smm initialization is started and vga led warning
r/buildapc on Reddit: Error code pch dxe smm initialization is started and VGA Led warning
February 20, 2022 -

Hello,

My computer was totally fine yesterday, except a small problem with an ethernet pilote that I fixed with a restart.

However this morning the computer is not even booting.

It's an old one with

i7 4790K

Gigabyte GTX970

2*4 Go Ram

I tried to remove the graphic card as the VGA led is advising, but it's not working with a HDMI on my motherboard. I also removed my Cmos battery cause I think it is dead (my bios was returning to default after a power failure in my appartment)

I also removed one RAM and all by HDD/SSD but it still not work ...

Can you help ?

Thank you !

Edit : The turn on button is also not working after I removed the power supply, I need a CMOS reset. It might be due to the missing battery

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Reddit
reddit.com › r/pcbuildhelp › help!!! asus q-code 63 “cpu dxe initialization is started”. i’m at my wit’s end trying to fix this. can anyone help me?
r/PcBuildHelp on Reddit: HELP!!! Asus Q-Code 63 “CPU DXE initialization is started”. I’m at my wit’s end trying to fix this. Can anyone help me?
June 6, 2022 -

Where to begin… I guess a little back story would help.

This build of mine was made back in 2014 and has lasted me until now. The last thing was in the beginning of last year upgrading my GPU and it’s been working fine. Never had an issue like this before and it was running smoothly until one day recently it just… won’t… post. Everything turns on (as in the cooler, case fans, gpu and hdd, ect) EXCEPT the monitor. Mind you the monitor does receive power and connected to the computer.

I guess now is a good time as ever to give my pc specs:

Mobo: Asus Z97 Pro Wifi AC CPU: Intel i7 4770K RAM: 4x Corsair Vengeance (32 GB) PSU: Corsair AX760i GPU: AORUS GeForce RTX™ 2060 XTREME 6G (rev. 2.0)

Now that that’s out of the way, I look at my motherboard and see that the q-code says 63 which in the manual book says it means: CPU DXE Initialization is started and the light that always stays on is the VGA led.

I search everywhere on google and even here on reddit and I’ve tried several different approaches for instance:

  1. Disconnecting GPU and use the onboard DisplayPort. (Did not work)

  2. Changing the DisplayPort cable. (Did not work)

  3. Booting with one stick of RAM. (Did not work)

  4. Booting with one stick of RAM and testing it in all slots. (Did not work)

  5. Booting with 2 sticks of RAM (in Dual Channel mode). (Did not work)

  6. Tried bios flashback. (Did not work)

  7. Tried using another set of known-working RAM (Did not work)

  8. Tried Clearing CMOS by jumper (Did not work)

  9. Tried Clearing CMOS by removing battery (Did not work)

  10. Tried removing motherboard from case and powering it up outside of the case. (Did not work)

I don’t have another motherboard to rule out the CPU or another CPU to rule out the motherboard.

I’ve been attempting this repair for about a month now. I have a video that shows what always happens when I turn on the computer.

Any ideas what it could be? Any help is appreciated.

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PCPartPicker
pcpartpicker.com › forums › topic › 283423-motherboard-not-lighting-up-all-other-components-reset-evry-4-seconds-after-a-click
Motherboard not lighting up, all other components reset evry 4 seconds after a click - PCPartPicker
B2 Legacy Option ROM initialization. B3 System reset if needed. B4 USB device hot plug-in. B5 PCI device hot plug. B6 Clean-up of NVRAM. B7 Reconfigure NVRAM settings. B8~BF Reserved. C0~CF Reserved. E0 S3 Resume is started (called from DXE IPL).
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Best Motherboards
bestofmotherboard.com › home › troubleshooting › “cpu dxe initialization is started”: fixed
"CPU DXE Initialization Is Started": Fixed - 2026 Best Motherboards Guide
January 22, 2023 - Meanwhile, if you get the “CPU DXE Initialization Is Started” code and your system is running OK, and posting does not halt, you have nothing to worry about.
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Asus
rog-forum.asus.com › t5 › amd-800-series › quot-cpu-dxe-initialization-is-started-quot-crosshair-x870e-apex › td-p › 1123434
"CPU DXE initialization is started" CROSSHAIR X870... - Republic of Gamers Forum - 1123434
November 9, 2025 - Just bought a new ROG CROSSHAIR X870E APEX motherboard. Flashed the latest BIOS on it (Version 1715, 15.79 MB 2025/09/25)/ CPU is AMD 9 9950. After a ridiculous long memory training session, motherboard seems stuck on code 64: "CPU DXE initialization is started."
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B&H Photo Video
bhphotovideo.com › lit_files › 642701.pdf pdf
1 Quick Start Quick Start
These connectors allow you to connect USB 2.0 ports on the front panel. ... MSI® DRAGON CENTER utility. ... This connector is for TPM (Trusted Platform Module).
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Reddit
reddit.com › r/buildapc › pc doesn´t enter bios/turn on after 5 years of working properly. motherboard error: pch dxe initialization is started
r/buildapc on Reddit: PC doesn´t enter BIOS/turn on after 5 years of working properly. Motherboard error: PCH DXE initialization is started
November 29, 2020 -

CPU: Intel Core i7 4820K

Motherboard: Asus Rampge IV Black Edition

GPU: Asus STRIX GTX 980-Ti OC

RAM: G.skill Ripjaws 6x4GB

The problem started right after the Windows 10 April 2018 update installed on my computer (don´t know if thatś a coincidence). Today the computer showed q-code error 34, which means it was unable to enter BIOS. I tried the BIOS switch on my motherboard, which had no effect. I then did a BIOS flash through a USB and the ROG connect feature on the motherboard to externally update the bios, which I assume was successful. When I tried to start it again, it went to q-code error 70: PCH DXE initialization is started. Now it just sticks to the Republic of Gamers screen which says: Press DEL or F2 to enter BIOS. Except my inputs don´t work and the BIOS switch doesn´t either. Please help.

Edit: I got it working by following u/rtey31 's advice and taking out the CMOS battery and putting it back in. Hopefully my computer will stay working.

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Linus Tech Tips
linustechtips.com › computer hardware › cpus, motherboards, and memory
Am I screwed? - CPUs, Motherboards, and Memory - Linus Tech Tips
June 21, 2020 - So I was gaming last night, and pc randomly shut off. Thought it was an unstable OC but when I turned it back on it gave me the temp warning. Idle was sitting at 75C and not moving even sitting in bios. So I popped out the cpu and remounted it. It sat at 65C but I know it was not that hot since t...