Question ASUS ROG STRIX X-399E Motherboard Fails to Boot and Displays Q-code 62, 64, or 33.

[Frank9999]

My computer has been stable for years and has had no hardware changes in years. The last hardware change and the last time the case was open was in April 2022 when I replaced the graphics adapter. A few weeks ago, it started hanging during bootup. When it hangs, the displayed Q-code is most often 62, sometimes 64, and once was 33. So far, I have always gotten it to boot into Windows by repeatedly trying.

I have no idea where to go from here. What is the likely culprit?

Any help will be greatly appreciated.

 

[Lutfij]

When posting a thread of troubleshooting nature, it's customary to include your full system's specs. Please list the specs to your build like so:
CPU:
CPU cooler:
Motherboard:
Ram:
SSD/HDD:
GPU:
PSU:
Chassis:
OS:
Monitor:
include the age of the PSU apart from it's make and model. BIOS version for your motherboard at this moment of time.

Can you drop in another processor onto the board or the processor you currently have onto another known working motherboard? Try removing sticks of ram and see if that helps change the CPU post codes.

 

[Frank9999]

I didn't include complete system information because I didn't realize that it was relevant to my question. Here it is:

CPU: AMD Ryzen Threadripper 2950X

CPU cooler: Cooler Master MasterAir MA621P RGB

Motherboard: ASUS ROG STRIX X399-E GAMING Rev 1.xx Serial No. 170910551900132 BIOS version 1206

Ram: G.SKILL Ripjaws V Series DDR4 Model F4-3000C14Q2-128GVRD (8 x 16GB)

SSD/HDD:
Boot drive: Samsung 980 PRO 2TB M.2 SSD

Crucial M4-CT256M4SSD2 SATA SSD 256 GB

Samsung SSD 840 EVO SSD 1TB

Samsung 970 PRO 1TB M.2 SSD

Seagate ST16000NM001G-2KK103 SATA Hard drive 16 TB

Toshiba THNSNH512GBST SATA SSD 512 GB

Western Digital WD30EZRZ-22Z5HB0 SATA Hard drive 3 TB

GPU: EVGA GeForce RTX 3090 24G-P5-3987-KR

PSU: EVGA SuperNOVA 220-GP-1300-X1 850W; 5 years, 8 months old

Chassis: Phanteks Enthoo Pro series PH-ES614PC_BK ATX

OS: Windows 10 Professional (x64) Version 2009 (build 22631.3810)

Monitor: Samsung Odyssey Neo G9 Series Model No. LS57CG952NNXZA

I shall try removing all but two RAM modules. If the problem persists, I will try a different pair.

Any further help narrowing down the cause of the problem will be greatly appreciated.

 

[Ralston18]

As I understand your post there are 7 (seven) installed drives - correct?

Just as a general observation of installed the installed components along with the old PSU my thought is that the PSU is simply no longer up to supporting the host system.

And thus a likely culprit.

Likely at or nearing its' designed in EOL (End of Life) and starting to falter and fail when loaded. Especially at peak load times.

Look in Reliability History/Monitor for error codes, warnings, and informational events.

The timeline format may prove helpful if there is some pattern involved.

Overall, increasing numbers of errors and varying errors make the PSU even more suspect.

All the more so if the host system has a history of heavy use for gaming or video editing.

 

[Frank9999]

Yes.

I don't know how relevant it is. The PSU has a 10-year warranty.

I will looks at the logs as you suggest.

Thank you!

 

[Frank9999]

I am still gathering information. I plan to eventually post more. I'm not going to ber able to work on this for a while, but I will be back.

Thanks for the help offered so far.

 

[Frank9999]

I want to tell people what happened. I started getting popups at shutdown that said memory at some address could not be read. the addresses varied, but they were always all zeros except the lowest two digits, which meant they were in the address range assigned to ROM. I concluded that the motherboard was the problem. Almost no suitable replacements were being offered for sale, and the ones that were were very expensive. I decided that the best solution was to build a new compputer, so that's what i did.