Troubleshooting: Alternating 04/4F errors on Maximus X Formula w/8086k - - An Overclocking Community
Forum Jump: 

Troubleshooting: Alternating 04/4F errors on Maximus X Formula w/8086k

Thread Tools
post #1 of 2 (permalink) Old 05-11-2019, 11:31 AM - Thread Starter
New to
Escatore's Avatar
Join Date: Nov 2010
Location: Some warm place
Posts: 667
Rep: 32 (Unique: 32)
Troubleshooting: Alternating 04/4F errors on Maximus X Formula w/8086k

Hello everybody!

I was wondering if you guys could help me:

My system has been hanging with loud buzzing noises through the speakers (no bluescreen) for a little while, and now, refuses to boot entirely. When booting, it alternates between 04 (PCH initialization before microcode loading) and 4F (DXE IPL is started) code errors. I got a 62 (installation of the PCH runtime services) error once. Google search indicates it could be a corrupt BIOS, or faulty mobo/RAM/CPU hardware - a pretty big spread of possible issues.

I have tried reseating the RAM, reseating the processor, and clearing the CMOS - each one seemed to work around the problem for one boot attempt or two, but the problem always returns.

System is as follows:
  • i7-8086k, delidded. Used to be pretty aggressively overclocked (~4.7Ghz on all cores), but currently at stock. Temps were never a problem during overclocking.
  • ASUS Maximus X Formula
  • ASUS Strix GTX 1080Ti x2 in SLI
  • Samsung 980 PRO x2 in RAID 0 using an intel driver.
  • Corsair Dominator 8 GB 2666 MHz x4 - running at 2133 MHz; never bothered to enable XMP.
  • Corsair AX1600i
  • CPU, VRMs, and GPUs are in a custom EKWB loop.

I don't have a bunch of secondary parts (PSUs, DIMMs, etc...) laying around to try substituting things. I could take everything apart and try test benching it, but the system weighs about 150-200 lbs, and I want to see if anybody has any ideas which don't involve doing that.

Thanks in advance everybody.

FOLD ALL THE PROTEINS!Warning: Spoiler! (Click to show)
Originally Posted by GunSkillet go_quote.gif

YES! I needed a power supply capable of running multiple refrigerators in SLI.

Escatore is offline  
Sponsored Links
post #2 of 2 (permalink) Old 05-20-2019, 03:45 AM
New to
Join Date: May 2010
Location: C:\Countries\EU\Denmark
Posts: 1,258
Rep: 57 (Unique: 56)

Try to flash the motherboard with USB - download the newest bios from here and rename the file M10F - stick the USB in the port labeled BIOS and hold the BIOS button on the back until it starts flashing. (PC has to be off) Wait until it stops - takes up to about 5 mins. Power it on and wait until the new bios is installed. Screen is off the whole time. -

And if that works, enable XMP, works alot better than auto.
DoctorNick is offline  

Quick Reply

Register Now

In order to be able to post messages on the - An Overclocking Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Forum Jump: 

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off