clear CMOS by shorting the cmos pins before you turn it on with the new RAM You should also list the exact model of the motherboard, CPU, and RAM Answer from ButchyBanana on reddit.com
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Reddit
reddit.com › r/buildapc › 4f "dxe ipl is started" with new ram
r/buildapc on Reddit: 4f "dxe ipl is started" with new RAM
March 6, 2024 -

A friend sent me some better RAM. Going from 8x2gb 2400 to 16x2gb 3200 DDR4. Way back when the PC was 4x2gb and I just turned the sucker off, swapped the RAM, and turned it on. This time around I'm getting 4F error on boot which corresponds to "DXE IPL is started" on my motherboard manual.

What's the next step here? If I swap to the old RAM, pc loads just fine.

Edit:
Motherboard - MSI Z270 M5 (MS-7A78)
CPU - Intel I5 - 7600k 3.8GHz

RAM (new) - SP016GXLZU320BSAJ7 - DDR 4 3200 16gb

RAM (old) - G.Skill F4-2400C15-8GVS - DDR4 2400 8gb

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Tom's Hardware Forum
forums.tomshardware.com › home › motherboards
need help with error code 4f DXE IPL is started | Tom's Hardware Forum
July 3, 2016 - Update I finally got it to boot to bios again it reconizes my cpu but i still get the error. Seems the only way I can get it to boot out of the error is resetting my cmos jumper let it beep till it shuts it self down and restart then it will beep for ever if I press the reset switch it'll keep on beeping but if i'm lucky it will boot.
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Asus
rog-forum.asus.com › t5 › z370-z390 › code-4f-when-booting › td-p › 748253
Code 4F when booting. - Republic of Gamers Forum - 748253
February 17, 2024 - Carbonicdk wrote: The error 4F is "dxe ipl is started". From that my guess would be to try with other memory blocks if you have that option, if not try a single stick and if that doesn't work try another. Thanks for the suggestion.
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Reddit
reddit.com › r/buildapc › replaced motherboard, pc now won’t boot q code 4f dxe ipl is started
r/buildapc on Reddit: Replaced motherboard, PC now won’t boot Q code 4f dxe ipl is started
January 26, 2023 -

My dad broke the 1st slot of his motherboard trying to insert a new graphics card. Everything would work fine when moving the card to the second slot but he still wanted to get a new board with all slots being functional. We got a new mobo and I swapped all the components onto the new board and then hooked everything up. Now the PC won’t boot even to bios and i just get the debug code ‘4F’ which in the asus manual says it means “dxe ipl is started”. I have no idea what that means or what that is suppose to indicate what’s wrong. I tried reseating the RAM and the CPU. I made sure all the power supply cables are in place and all the components’ RGB are lighting up so everything is getting power. I’ve double checked everything and still have no idea what’s wrong. If anyone could offer some help or advice as what to try next I would really appreciate it.

Specs: CPU i9 10900k RAM trident 32gb 4000mhz GPU Rtx 3080 gigabyte AORUS master New mobo Asus ROG strix z590-E Gaming Wi-Fi

Old Mobo Gigabyte AORUS z490 XTREME

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Leonieclaire
leonieclaire.com › common-questions › what-is-dxe-ipl-is-started
What is DXE IPL is started? – Leonieclaire.com
April 18, 2021 - DXE IPL = Driver Execution Environment Initial Program Loader. Pull everything from the system expect CPU and heatsink, 1 stick of RAM and power. Doubt it will help but you should always do it. According to this forum post, 4F is a faulty BIOS Chip.
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Linus Tech Tips
linustechtips.com › the workbench › troubleshooting
I'm derped on this error code my motherboard is giving - Troubleshooting - Linus Tech Tips
July 2, 2016 - every time I boot this pc up I am constantly getting 3 beeps and error code 4f when I look in the manual it says DXE IPL is started. I can get the pc to boot but unsure I googled it and can't seem to find anything usefull about my mb specifically most people are saying bios with asrock boards but...
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Overclock.net
overclock.net › home › forums › intel › intel motherboards
[OFFICIAL] Asus Strix/Maximus Z690 Owners Thread | Page 184 | Overclock.net
October 27, 2021 - Sorry it's 4F: DXE IPL is Started. Driver Execution Environment (DXE) phase is where most of the system initialization is performed. Shut down the system due a clear c'mos. Turn off the power supply and take out the battery for a few five minutes.
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Team Fortress
teamfortress.tv › 8593 › new-build-wont-stay-on
New Build Won't Stay On - teamfortress.tv
:) 4F 36 69 ...they are what I mean by beeps.I'm pretty sure that these are q-codes (page 48/49) 4F = DXE IPL is started 36 = CPU post-memory initialization 69 = System Agent DXE initialization is started Everything that was or could ever be suggested is in the list
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Compalserver
compalserver.com › media › servers › download › file › SR124-2A__SR224-2A_BIOS_Manual_v1.4.pdf pdf
BIOS Manual SR124-2A/SR224-2A/ SR121-2A/SR221-2A Revision : 1.4
October 2, 2025 - Post-Memory South Bridge initialization is started · 0x3C · Post-Memory South Bridge initialization (South Bridge module specific) 0x3D · Post-Memory South Bridge initialization (South Bridge module specific) 0x3E · Post-Memory South Bridge initialization (South Bridge module specific) 0x3F-0x4E · OEM post memory initialization codes · 0x4F · DXE IPL is started ·
Find elsewhere
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Reddit
reddit.com › r/buildapc › new build | screen lacking and infinite reboot
r/buildapc on Reddit: New build | screen lacking and infinite reboot
June 14, 2021 -

This weekend I went to build a computer for a friend, taking the time to assemble everything. No problems encountered and finally the moment of truth .. The computer started up properly and immediately entered the bios, nothing changed and let it restart. Then I got the following two options "F1" for Intel default CPU settings "F3" to unlock limits for increased performance.

Selected "F1" and the computer rebooted, and this continued to repeat every 10 seconds. Sometimes it stayed on a little longer and I got a green error screen but with the "Republic of Gamers logo" still visible. Also sometimes I just get a bright black screen with the logo and the option to go to BIOS but then the keyboard doesn't respond.

When I do a BIOS reset everything is back to normal and I get the two options "F1" & "F3" again but I can't get into the BIOS itself anymore.

Qcodes the motherboard indicates between reboots in different sequences:

  • 4F: DXE IPL is started

  • 60: DDXE Core is started

  • 61: NVRAM initialization

  • 62: Installation of the PCH Runtime Service

  • 63: CPU DXE initialization has started

  • 68: PCI host bridge initialization

  • 70: PCH DXE initialization is started

  • 79: CSM initialization

  • 90: Boot Device Selections (BDS) phase has started

  • 92: PCI BuS initialization has started

  • 99: Super IO Initialization

  • A1: IDE Reset

  • A9: Start or Setup

Relevant software and hardware I use:

  • ASUS Rog Strix Z490-E Gaming

  • Intel Core i7-10700K Boxed be quiet! DarkPro 4

  • Corsair RM850

  • G.Skill Trident Z RGB F4-4000C18D-64GTZR

  • Samsung 970 EVO 1TB ASUS

  • ROG Strix GeForce RTX 3070

  • Cooler Master Cosmos C700M

What I have already found or tried:

Cables checked and connected again, Video card removed to make it a bit easier with the reset. RAM was hard to get to because of the cooler but put it out and in. I suspect the processor has a problem, but I'm only basing that because the first boot everything went well and only gave problems when selecting "F1". Hope you can guide me in this. Thanks in advance.

Below some pictures that could help.

https://tweakers.net/i/CbUI03ltq70eGvFdIIXS_GKZ424=/800x/filters:strip_icc():strip_exif()/f/image/3s17BVCxT29cJmTDCNWJZ4VU.jpg?f=fotoalbum_ https://tweakers.net/i/Fn7fJ0qGXcCwAsbXgLM3fxGPNck=/800x/filters:strip_icc():strip_exif()/f/image/IEWjXj74AwIP4WxJaEHwBQjS.jpg?f=fotoalbum_large https://tweakers.net/i/dCxoSBEaYkThNGPfbU4x2OagQB8=/800x/filters:strip_icc():strip_exif()/f/image/PZPxv5T4ejN6O8YhJasvPNuu.jpg?f=fotoalbum_large

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EVGA Forums
forums.evga.com › EVGA-Z170-CLASSIFIED-4WAY-4F-DXE-IPL-IS-STARTED-m2580756.aspx
r/TEAMEVGA
November 11, 2016 - Wow.. this is pretty big news, although I'm guessing it'll probably be a few years before we see it. Also makes me wonder if we'll be seeing a RTX 6000 series or much beyond that if NVidia decide to head more towards an all-in-one solution.
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UEFI
uefi.org › specs › PI › 1.8 › V1_PEI_to_DXE_Handoff.html
9. PEI to DXE Handoff — UEFI Platform Initialization Specification 1.8 documentation
PEI must also provide a mechanism for components of DXE and the DXE Foundation to discover the state of the system when the DXE Foundation is invoked. Certain aspects of the system state at handoff are architectural, while other system state information may vary and hence must be described to DXE components. The PEI Foundation uses a special PPI named the DXE Initial Program Load (IPL) PPI to discover and dispatch the DXE Foundation and components that are needed to run the DXE Foundation The final action of the PEI Foundation is to locate and pass control to the DXE IPL PPI.
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Linus Tech Tips
linustechtips.com › computer hardware › cpus, motherboards, and memory
Asus Z97 deluxe error code 4f - CPUs, Motherboards, and Memory - Linus Tech Tips
July 22, 2016 - So when I boot my computer from cold 75% of the time it will hang on error code 4f (DXE IPL is started) I don't know what that means is half the problem. From looking around on the internet I think it's one of these 3 problems: CPU is dying Ram is ...
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Linus Tech Tips
linustechtips.com › the workbench › troubleshooting
Asus PRIME X299-A stuck on boot with Q-Code 4F [SOLVED] - Troubleshooting - Linus Tech Tips
January 2, 2023 - FIXED: The motherboard simply needed a BIOS recovery. I ued the FlashBack option. Here are the instructions: https://www.asus.com/us/support/FAQ/1038568 Hi there. I am having an issue with one of the workstation from my college computing lab. It is a system wit the aforementioned MoBo, a Core i7 ...
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GitHub
github.com › tianocore › edk2-archive › blob › master › IntelFspPkg › FspDxeIpl › DxeIpl.c
edk2-archive/IntelFspPkg/FspDxeIpl/DxeIpl.c at master · tianocore/edk2-archive
IN CONST EFI_DXE_IPL_PPI *This, · IN EFI_PEI_SERVICES **PeiServices, · IN EFI_PEI_HOB_POINTERS HobList · ) · { · EFI_STATUS Status; · · DEBUG ((DEBUG_INFO | DEBUG_INIT, "FSP HOB is located at 0x%08X\n", HobList)); · · // ·
Author   tianocore
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Asus
rog-forum.asus.com › t5 › other-motherboards › dxe-errors-rive › td-p › 478602
DXE Errors? RIVE - Republic of Gamers Forum - 478602
March 6, 2024 - But for some reason the monitor's resolution is all messed up. Video card is acting very weird, EVGA Precision X not seeing it, etc. Thinking a restart will help I shut down and power on the computer. This time it doesn't even boot, it's stuck on debug code 4F. 4F: DXE IPL is started Ok, never ...
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GitHub
github.com › tianocore › edk2 › blob › master › MdePkg › Include › Ppi › DxeIpl.h
edk2/MdePkg/Include/Ppi/DxeIpl.h at master · tianocore/edk2
If this PPI does not exist, it is an error condition and · an ill-formed firmware set. The DXE IPL PPI should never · return after having been invoked by the PEI Foundation. · The DXE IPL PPI can do many things internally, including the following: ·
Author   tianocore
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Overclockers
overclockers.com › home › forums › hardware › motherboards › intel motherboards
ASUS P8Z68 DELUXE - ERROR 4F | Overclockers Forums
August 13, 2012 - Unfortunately this did not solved my problem. Changed names to *.CAP. But it only goes as far as 4F and stays on it. Still no vision, no any longer USB flashing than before, pushed all keys on keyboard nothing happened. 4F in the manual stays as: DXE IPL is started Whatever that means...
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MSI
forum-en.msi.com › home
Z690 Ace debug code E0, can't boot
I fixed the heating issue on Vector 16 HX A8WHG.