Question B450i No POST/cpu debug

SCHARKBAIT11

Reputable
Feb 19, 2020
5
0
4,510
No post/cpu debug light
TLDR: tried to go to itx board //used 2 cpus no avail /lights and fans on running but cpu light on no post


R 9 3900x///spare/// r 5 2600x both confirmed working(post) in b350 board
Mobo — b350f going to b450I(used)
Same ram 4x8gb crucial (using one for testing)
Rtx 3070



Okay so I was trying to downsize from a rog strix b350 f motherboard to a rig strix b450i to put ina smaller case


I get red cpu light on b450 mobo with with 3900x so I tried 2600x same thing
Cpu fan spinning
Gpu fans spin at star then stop after a bit
Rgb Lights on motherboard are on


So I took both cpus tried in b350
Ram one stick
And 3070

And worked fine..

Am I missing something or???

I looked to see about bios updated says 2600x compatible from 0207 update and the lowest the website has is 05** and it description says first update .

Idk if I been looking at this too long or what?

Any help appreciated.


Pc parts
main
Cpu Ryzen 9 3900x
Cooler. Wraith prism for testing (aio usually)
Gpu Rtx 3070 8gb
Ram. 8x4gb(32gb) using one stick for testing
Mobo. Rog strix b350f
Case out of case
Psu Corsair cx750 age idk a few years never any issues
Ssd. Sata Kingston 240 boot drive

Pc parts —
New to me (used)
Motherboard rog strix b450i
Gpu
-same 3070
Cpu 2600x for testing (thinking bios is older)
Cooler —wraith prism for testing (aio usually)
Ram same single 8GB stick for testing
Case out of case
Psu same Corsair cx750
Ssd sata kingston 240 boot drive( unplugged others for testing purpose)
 
Last edited:
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.

In your instance we'll be seeing two or more sets of specs considering how many parts you've swapped out.

If you're going along with the B450I board;
turn to page 3-28, section 3.11.3, Asus CrashFree BIOS 3 using the latest BIOS version on the flash drive.
See if that helps you out.
 
  • Like
Reactions: SCHARKBAIT11
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.

In your instance we'll be seeing two or more sets of specs considering how many parts you've swapped out.

If you're going along with the B450I board;
turn to page 3-28, section 3.11.3, Asus CrashFree BIOS 3 using the latest BIOS version on the flash drive.
See if that helps you out.
Oh I do apologize I believe I’ve updated with correct format now ..

Also thanks for that I shall retry when I get home hopefully this works
 
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.

In your instance we'll be seeing two or more sets of specs considering how many parts you've swapped out.

If you're going along with the B450I board;
turn to page 3-28, section 3.11.3, Asus CrashFree BIOS 3 using the latest BIOS version on the flash drive.
See if that helps you out.
Unfortunately it did not help no change

Jump pins usb in … just wait a few seconds and Cpu light on