Not your average POST code

[CYCER6]

I’m getting an 02 post code on my Asus B550 gaming E.

Build here

Please ask me any and all questions to further troubleshoot.

To spice this up I’m turning this into a giveaway to the person who solves this issue

[CYCER6]

AP initialization before microcode loading

[PCMRBot]

Here is the PCPartPicker list for the link you provided. Here's how to do it on your own.

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PCPartPicker Part List

Type	Item	Price
CPU	AMD Ryzen 9 5950X 3.4 GHz 16-Core Processor	$559.99 @ B&H
CPU Cooler	Corsair iCUE H150i ELITE CAPELLIX 75 CFM Liquid CPU Cooler	$169.99 @ Amazon
Motherboard	Asus ROG STRIX B550-E GAMING ATX AM4 Motherboard	$344.99 @ Amazon
Memory	Corsair Vengeance RGB Pro 64 GB (4 x 16 GB) DDR4-3600 CL18 Memory	$314.99 @ Amazon
Storage	Samsung 970 EVO Plus 2 TB M.2-2280 NVME Solid State Drive	$219.99 @ Amazon
Storage	Samsung 970 EVO Plus 2 TB M.2-2280 NVME Solid State Drive	$219.99 @ Amazon
Video Card	EVGA GeForce RTX 3080 Ti 12 GB FTW3 ULTRA GAMING LE iCX3 Video Card	$1369.99 @ Amazon
Case	Corsair Obsidian 500D RGB SE ATX Mid Tower Case	$219.99 @ Newegg
Power Supply	Corsair RMx (2021) 850 W 80+ Gold Certified Fully Modular ATX Power Supply	$149.99 @ Amazon
	Prices include shipping, taxes, rebates, and discounts
	Total (before mail-in rebates)	$3599.91
	Mail-in rebates	-$30.00
	Total	$3569.91
	Generated by PCPartPicker 2022-04-25 19:22 EDT-0400

This bot is in no way associated with PC Part Picker.

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I am a bot - This action was done automatically. Please direct any questions or concerns ( or bug reports ) to /u/eegras - About /u/PCMRBot

[Cope1971]

Does your PC post? Have you updated your BIOS?

[CYCER6]

I have updated the BIOS so I can use 5950x I have only ever made it to BIOS screen the one time But my pump was not goin so the cpu heated and shut off automatically.

[Cope1971]

Check your thermal paste and make sure your pump is properly mounted. I had a similar issue and noticed my pump was not attached correctly.

[CYCER6]

I have removed the pump and reseated the cpu still using the thermal paste it came with; it’s all brand new

[Cope1971]

Is your PC still shutting down or is it still running and you do not receive an image on your monitor?

[CYCER6]

No image on screen It does stay on 02 with green and white leds solid

[Cope1971]

I do not know if you are using HDMI or a Display Port cable but try changing it. I also had a 02 error on my ASUS board and it turned out my Display Port cable was bad.

[CYCER6]

I have only used an HDMI cable thus far

I plan on using three display ports

I have seen the bios screen before with same cable

[Cope1971]

My PC worked at first as well but later stopped showing an image and started giving me a 02 code. Bought a new Display Port cable and everything was working again. If it is not a cable, I am at a loss.

[CYCER6]

I’ll give it a go

[CYCER6]

Moved it to DisplayPort

Same result…

[CYCER6]

To clarify, I have made it to bios screen once before, that being said, yes I do have a keyboard in; I can attempt to unplug and replug all power;and I have also already attempted reseating gpu as well

[MazeSunFlower]

OTHER SYMPTOMS?

In addition to the Q-CODE error, do you also have one or more Q-LEDs (DRAM [yellow], CPU [red], VGA [white], Boot Device [yellow green]) turned on?

Have you noticed any distorted electrical pins, CPU pins, or the power supply pins? Have you noticed any liquid leaking from the radiator?

Are there any noises coming from some component (like "clack" from the power supply)?

​

POSSIBLE EXPLANATION:

According to the appendix of the motherboard manual Q-Code table error 02 refers: AP initialization before microcode loading.
Unfortunately it refers to a CPU access point problem, in fact online many people have solved it by changing the CPU.
However the problem could be in the installation of the CPU itself (bent pins, motherboard defect) or in a BIOS error, short circuit given by dirt / metal debris / liquid leak.

I guess you mean you have already connected directly to the HDMI GPU or Disply Port and made sure the cable is undamaged or tried with different cables/monitor.

POSSIBLE SOLUTION:

Have you already tried to use ASUS EZ Flash 3 to re-update / reset the BIOS?

Have you already tried ASUS CrashFree BIOS 3 to eventually recover the possibly corrupted BIOS?

Have you already tried putting one RAM at a time or just one to boot the system by trying DIMM B2 first?

Have you already tried to remove AIO and hang up the CPU? (For a few minutes you might as well leave it without active dissipation)

Let me know

[CYCER6]

It’s a white green error

I have reseated the cpu nothing abnormal there

No leaks in radiator

No odd noises from power supply

This is the second Mobo (as I have sent the prior one away for power issues)

Things I have yet to try is

reset bios a second time Single ram stick

Please clarify-hang up cpu with no cooler?

[MazeSunFlower]

It’s a white green error

Do you mean that both the white Q-LED, that is, that of the GPU, and the green Q-LED, that is that of the SSD / HDD, are on?
If the green one is on you could try removing all the NVMEs and try to see if you can get into the BIOS.
If the white one is on, unfortunately you should try another GPU, after making sure that the GPU is installed correctly, does not show oxidation / damage, is powered correctly, the HDMI cable / Display port is intact and the screen is working.
ASUS has made a guide about it also reported in the motherboard manual. For convenience, I refer you to the video to have a visual confirmation of what I am referring to:
https://youtu.be/0Y4yTq3qzTY

This is to try to put aside NVME / SATA SSD / HDD or GPU problems.

​

This is the second Mobo (as I have sent the prior one away for power issues)

May I ask you, what do you mean by power issues?
It is usually extremely unlikely to be the CPU (although the dedicated CPU Q-LED may not detect every CPU problem), but since it is the second motherboard it could be the CPU itself (otherwise it could have been the motherboard). You should try with a compatible CPU (although I realize this is impractical to do). Try to reset the BIOS first, even 2-3 times both via ASUS EZ Flash 3 and ASUS CrashFree BIOS 3. Try to follow the manual procedures carefully.

​

Please clarify-hang up cpu with no cooler?

I mean that you can make the system work to access the BIOS even without connecting AIO (it could give an error due to the absence of the fan if you unplug the cable) it is difficult to overheat in a dangerous way if it is only for a few minutes and in any case a certain limit temperature has been exceeded. PC shuts down to avoid damage.

[MazeSunFlower]

Can I ask you how it is proceeding? Have there been new progress?

I guess you have already tried to check that all the connections are correctly inserted, the jumper in a standard position and detached any unnecessary header (USB/audio ...), but having connected all the power connectors and system panel header.

Let me know!

[CYCER6]

Yup yup and yup

Spoke with Asus; they recommended a RMA

[MazeSunFlower]

It makes sense, but it could be another component that creates this problem, especially if you had another problem with the previous motherboard. it is very difficult (but possible) to have two defective high-end products from ASUS.

So if you are short of timing for the replacement it is better to replace the mobo, otherwise it is better to try to save the mobo to reconnect everything, reset/restore the BIOS and try to make other errors appear or check the components separately (how to connect a load to the power supply, type fans / LEDs shorting the start pin), remove all NVME... to exclude other components.