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No Post - Asus Rog Strix X570 - Code 00

enios
Level 9

Hi everyone,
I have a custom-built PC running a Ryzen 3950X on a Asus ROG Strix X570-E motherboard, with 64GB of G.Skill Trident Z Neo RAM, and a Samsung 970 Evo Plus SSD. Cooler is Dark Rock Pro 4 and PSU is Seasonic Prime Ultra Titanium.
GPU is EVGA GeForce RTX 2080 FTW3.
This has been running fine for 3.5 years, with the occasional restart, and I am suspecting the 970 Evo Plus since it runs quite hot (usually 58°C in Samsung Magician in idle)

I finally had enough and decided to swap the thermal pads with Thermal Grizzly Minus Pad 8.
I also took the opportunity to replace the CPU's thermal paste.

Upon restart, I went to the bios and the temperatures seemed nice and low.
It didn't boot further and gave me an error message since I forgot to attach the extra PSU cables to the GPU, my bad.
Upon the next restart, I noticed that the outside CPU fan was not running, ups, I put it back the wrong way.
I removed it and set the CPU fan to 100% in the bios to see if the inside CPU fan (from the Dark Rock Pro 4) was also wrongly installed. It wasn't.
I turned the outside fan over and all of a sudden, everything died.
Power button didn't work, everything was dark.

Eventually, power button did work after 20 minutes or so, and started the system, but:
- the CPU fans rotate and then stop
- the exhaust case fan takes over, the only one that runs
- there is no POST or anything displayed on the monitor
- motherboard shows code 00
- speaker does not beep
- RGB on motherboard, RAM and GPU seems to work
- neither the power button nor the reset button work anymore
- the only way to shut down the system is via the PSU's switch

to reiterate, the power button does start the system, but then pressing it does not shut it down anymore. Reset button doesn't work either.

The 00 code seems to indicate an issue with PSU, CPU or motherboard, from what I've read.

Based on the above, how likely is it the motherboard is dead?
I don't have any spare PSU, motherboard or CPU to test, unfortunately.
I do have a spare GPU that I am about to swap but I doubt that's the issue.

Any help would be appreciated 🙂

 

 

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1 ACCEPTED SOLUTION

Accepted Solutions

Silent_Scone
Super Moderator

Hello,

Have you tried reseating the CPU? Although, it sounds like somewhere during the process the motherboard / CPU has died/become damaged.

9800X3D / 6400 CAS32 / ROG X870 Crosshair / TUF RTX 4090

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6 REPLIES 6

Silent_Scone
Super Moderator

Hello,

Have you tried reseating the CPU? Although, it sounds like somewhere during the process the motherboard / CPU has died/become damaged.

9800X3D / 6400 CAS32 / ROG X870 Crosshair / TUF RTX 4090

thank you for your reply

I didn't try, no, since I didn't touch the CPU, other than removing the cooler, cleaning the thermal paste, and reinstalling the cooler again.
I could try I guess, not much to lose.

could a dead CPU explain why the power button stops responding once the power is on?

is there any way to know without purchasing a new CPU or a new motherboard?

EDIT: I forgot to mention, the motherboard has 4 LEDs next to the RAM (Boot, VGA. CPU, DRAM) and none of them light up.
I don't remember if they ever lit up in the past though

thank you very much for the suggestion!!!

that was actually the issue... when I removed the CPU cooler, the CPU came with it, despite the AM4 lock still in place!
so it somehow got unseated. I carefully reseated it and now everything works, I am writing you from that PC 🙂

Luckily, all the components survived this ordeal.

thanks again, feel free to delete this thread

enios
Level 9

in an interesting new development, after removing the CMOS battery for a few minutes, when I boot, all the fans are now working full time.

sadly everything else is the same, no beeping, no post, and power button stops responding

enios
Level 9

thank you very much for the suggestion!!!

that was actually the issue... when I removed the CPU cooler, the CPU came with it, although the AM4 lock was still in place!
so it somehow got unseated. I carefully reseated it and now everything works, I am writing to you from that PC 🙂

Luckily all the components survived this ordeal.

thanks again, feel free to delete this thread

Hello,

No problem. Perhaps just needed a reseat after many heat cycles 👍

9800X3D / 6400 CAS32 / ROG X870 Crosshair / TUF RTX 4090