Q code c5 ROG Strix x870e boot failure

[Dcarter]

New build

rog strix x870e-e wireless

Amd Ryzen 9800x3d

gskill 64gb(2x32) ddr5 6000 c30

asus prime rtx5080 16gb

rog Thor 850 power supply

wd black sn850x 2tb

after assembly unit would not boot to bios receiving following q code c5 15 00

inspected memory and memory slot  inspected  memory in another PC no issue memory fine

tried alternate ram no change 

inspected CPU And am5 slot no issue 

inspected and re seated all power connection no change 

removed gpu no change 

cleared cmos by removing battery

so how can I determine if the problem is the cpu or motherboard?or any other suggestions to try?

[Dcarter]

used Bios flashback to go to latest bios 1103 beta version dated 2025 02 12 bios flashback completed successfully codes go thru the following 00/46/15/C5 it is staying on C5 for +30 minutes

[Nate152]

Helo Dcarter

Checking the Q-Code table, I don't see code C5, I do see code 5C.

Scroll to page 57.

E25504_ROG_STRIX_X870E-E_GAMING_WIFI_EM_V2_WEB.pdf

Can you double confirm the code is C5?

[Dcarter]

Can confirm c5 code. I did further investigation this morning can confirm bent pins on the socket.  
plan is to return board for an exchange but am worried about possible cpu damage also. So will try to work with microcenter to get it right. Have not had a bent pin on me since pentium 3 days. So it happens! The am5 socket force for closing cpu to board seems excessive. 
thanks for the quick repsponse. Will inform what microcenter does it is ASUS service center in my area. 

[Nate152]

Ah, that's unfortunate.

Good job finding the problem though. I doubt there is any cpu damage, just one socket pin being off will cause some kind of problem.

 I guess we'll wait for your response from Microcenter, let us know how it goes.

[Dcarter · Accepted solution]

microcenter was great replaced motherboard and cleanup CPU.  traveling this week will get back to the new build next weekend

[Dennis_HaYang]

Hi Dcarter
I'm sorry to hear this news, but I want to tell you that I had the exact same problem as you before, my new motherboard was Q5 on the first day. After checking is the CPU pin crooked three, finally Asus after-sales center gave me a new (may be) motherboard.

Although I have no definitive proof, I highly suspect that it was a QC defect (Made in Vietnam), not a squeeze caused by our misinstallation of the radiator.
This story tells us that unboxing have to record videos, like youtubers LOL