Z790 Hero codes

[The_Barronator]

Hey everyone,

I have an awesome PC I had a shop build me. It has this one weird issue that crops up from time to time.

Here's the specs:
Z790 Hero Motherboard
Core i9 13th gen
64 GB Corsair Dominator DDR5 RAM
MSI Liquid Suprim RTX 4090
2TB SSD

Great super PC.....99% of the time.....once in a while, I will notice that the LED lights on the RAM are not responding to my LED software (iCUE). This is my indicator that the following is about to happen.....I will reboot the PC...for whatever reason....and the PC will not post and will give me error code 55 or error code 53. However, power cycling the PC always always fixes this, and the PC and RAM etc all boot and work normally.

This is a rare issue, but a concerning one. I have a warranty with this PC so if it ever sticks me with one of these codes and won't boot no matter what, I am covered for a free repair/replacement of any hardware. But because power cycling the PSU fixes the issue every time I haven't had a permanent issue.

WTF is causing this? Honestly I wonder....the Z790 hero never really fully shuts off. When you shut down the PC, it remains in a low power state where it has a push-to-start button illuminated and you can see on the back of the motherboard that it is still giving low power to the keyboard and mouse etc....so like...it neveer FULLY shuts down until you turn the PSU off....I wonder if that contributes. Maybe I just have bad RAM? Maybe DDR5 RAM is just glitchy sometimes?

So weird.

[✨Saint✨]

Make use of your warranty; you see, the moment you start putting your hands on it, opening the case and-what-not, they can make a lot of "excuses" it was your fault.

[The_Barronator]

Publicado originalmente por ✨Saint✨:

Make use of your warranty; you see, the moment you start putting your hands on it, opening the case and-what-not, they can make a lot of "excuses" it was your fault.

:saint:

They're pretty lax with the warranty rules, good shop for that. I can replace components and I am still covered. You're not wrong tho that it's a good idea to take advantage, problem is guys....this almost never happens...and when it does it's only upon a reboot, never a cold boot.

It would be hard for the shop to reproduce the issue.

[The_Barronator]

ALSO want to add, ran memtest86 and it passed with flying colors....maybe it's a motherboard issue?

[✨Saint✨]

Publicado originalmente por The_Barronator:

Publicado originalmente por ✨Saint✨:

Make use of your warranty; you see, the moment you start putting your hands on it, opening the case and-what-not, they can make a lot of "excuses" it was your fault.

They're pretty lax with the warranty rules, good shop for that. I can replace components and I am still covered. You're not wrong tho that it's a good idea to take advantage, problem is guys....this almost never happens...and when it does it's only upon a reboot, never a cold boot.

It would be hard for the shop to reproduce the issue.

The cause of that error can be many things, the only person who knows best, is the one that actually made your PC, so, again, I would really advice going back to the shop.

[PopinFRESH]

Your board uses a custom AMI AptioV UEFI based firmware.

AMI AptioV Status Codes[www.congatec.com]

There are different phases of the boot process but what you're referring to is most likely the PEI process

0x53 is Memory Initialization Error, No usable memory detected
0x55 is Memory not installed

Given this only occurs during a warm-boot / reboot, and not from a cold boot it may be due to a software-side issue interfacing with the firmware, such as what iCUE does to control those LEDs. Try completely removing both the iCUE software and if you also have it installed the ASUS Armory Crate software.

Also, if you're comfortable workin within the UEFI/BIOS for configurations you can try to disable the ASUS "AI Tweaker" settings (their auto-overclocking), and reset the memory speeds to SPD rather than XMP and test out to see if you still get the error.

[76561199502155650]

My PSU is older and does similar things, with a usb led light plugged into my motherboard usb slot, it remains powered on even when the computer is shut down.

i recommend switching off the power strip or the power button on the back of the PSU

it is possible that a bad setting will also cause your computer to boot by itself, before i started turning off my power strip, i woke up several times to find my pc was running all night and rebooted itself after i shut it down.

its better for your electric bills as well.

i recently replied to a forum post by someone who had a so called "smart pcie-5 PSU"
this thing would change the voltage when the PC was preforming work loads to over clock it

ultimate it would cause the system to become unstable from the voltage change.

i recommend reviewing what your Power supple unit is "PSU" and see if this might be a issue for you as well.

[Bad 💀 Motha]

If you find yourself having to power cycle the PC to get the Motherboard features to act right; it's the Motherboard like 99% of the time. RMA it. The worst that can happen is that they deny it.

But it always helps to have an extra decent quality PSU laying around as a reliable backup that you could connect up to everything and re-test and see if that alone is your problem.