Now power after new CPU and BIOS

ephilus · 11 Jan 2025 at 22:21

Hi all got a head scratcher here

So I have a B650e-e motherboard, today I have just tried to install my new 9800x3d, it threw a 0d error code so I swapped back to my old CPU and downloaded the new BIOS to a USB, made sure it was named correctly and the USB was Fat format. Put in new CPU back in and ran the BIOS flash.

Then went to hit the power button and nothing, no power at all, the only light I have is the RGB on the MB

Been through all the cables so no issues

Any ideas I'm stumped

Done the whole clear CMOS remove battery and all that. Ethernet still blinks green so some power is there.

mickyflinn · 11 Jan 2025 at 22:27

Hi and welcome.

If you put your old cpu back do you get the same symptoms?

Things to try

Check the CPU socket on the motherboard for bent pins.

Try clearing the CMOS on the motherboard

Try booting with one stick of memory

Quartz · 11 Jan 2025 at 22:40

ephilus said:
So I have a B650e-e motherboard, today I have just tried to install my new 9800x3d, it threw a 0d error code so I swapped back to my old CPU and downloaded the new BIOS to a USB, made sure it was named correctly and the USB was Fat format. Put in new CPU back in and ran the BIOS flash.

Flash the BIOS with the old CPU installed.

mickyflinn · 11 Jan 2025 at 22:41

Quartz said:
Flash the BIOS with the old CPU installed.

Good spot.

ephilus · 11 Jan 2025 at 23:01

mickyflinn said:
Hi and welcome.

If you put your old cpu back do you get the same symptoms?

Things to try

Check the CPU socket on the motherboard for bent pins.

Try clearing the CMOS on the motherboard

Try booting with one stick of memory

Hi, just done a reflash with the old CPU and same symptoms no power at all

ephilus · 11 Jan 2025 at 23:03

mickyflinn said:
Hi and welcome.

If you put your old cpu back do you get the same symptoms?

Things to try

Check the CPU socket on the motherboard for bent pins.

Try clearing the CMOS on the motherboard

Try booting with one stick of memory

Hi, just done a reflash with the old CPU and same symptoms no power

mickyflinn · 11 Jan 2025 at 23:44

ephilus said:
Hi, just done a reflash with the old CPU and same symptoms no power

Did you check the motherboard CPU socket for bent pins ?

ephilus · 11 Jan 2025 at 23:44

mickyflinn said:
Did you check the motherboard CPU socket for bent pins ?

Yup nothing that I can see

mickyflinn · 11 Jan 2025 at 23:50

ephilus said:
Hi, just done a reflash with the old CPU and same symptoms no power

Are you flashing the bios with the bios flash button, presuming you can access the bios with your old cpu ?

ephilus · 11 Jan 2025 at 23:53

Flashing from the button, even with the old CPU there is no power so no access to BIOS screen

mickyflinn · 11 Jan 2025 at 23:57

ephilus said:
Flashing from the button, even with the old CPU there is no power so no access to BIOS screen

Long shot but try jumping the power on pins on the motherboard with a screwdriver after disconnecting the front panel power on button in case there's a problem with it.

ephilus · 12 Jan 2025 at 09:11

mickyflinn said:
Long shot but try jumping the power on pins on the motherboard with a screwdriver after disconnecting the front panel power on button in case there's a problem with it.

I have just tried that and no luck. Could it be a dead MB?

mickyflinn · 12 Jan 2025 at 09:24

ephilus said:
I have just tried that and no luck. Could it be a dead MB?

Yes but it could also be the PSU .

Check the CPU socket again Take a picture of the CPU socket and post it so we can check it also, there been a few lately where one pin is bent they didn't notice and posted a pic and I found it.

ephilus · 12 Jan 2025 at 09:51

https://pin.it/5cQUmSz4X

So on closer inspection with a mag light to me that looks damaged........

Rob_B · 12 Jan 2025 at 09:55

Yup, those are some damaged pins. You can try to fix them, I guess you have nothing to lose. Looks like at least 4, maybe even 6 if that bottom section covers 3 rows.
Do not put your CPUs back in while they are still bent, you risk bricking those too.

Quartz · 12 Jan 2025 at 09:56

Yes, two pins in the top half and at least two in the bottom half.

ephilus · 12 Jan 2025 at 10:10

Would those pins be causing the 0 power issue?

Looks like a new MB for me then, had a go at trying to straighten them but not looking much better

mickyflinn · 12 Jan 2025 at 10:16

ephilus said:
Would those pins be causing the 0 power issue?

Looks like a new MB for me then, had a go at trying to straighten them but not looking much better

Sure would.

You could attempt to fix it but it looks difficult ,there's a guy on here called @Vince He does this sort of thing. Even if you get aother motherboard it mite be worth it .

What's your budget for a board ?

ephilus · 12 Jan 2025 at 10:27

mickyflinn said:
Sure would.

You could attempt to fix it but it looks difficult ,there's a guy on here called @Vince He does this sort of thing. Even if you get aother motherboard it mite be worth it .

What's your budget for a board ?

I have already written it off, had a quick go at straightening them but it's beyond my tools and ability.

Have ordered another ROG B650E-E should be here Saturday

Royally annoyed myself as I was gentle as hell putting that new chip in but apparently now enough! Oh well expensive lesson

Thanks all for the trouble shooting!

mickyflinn · 12 Jan 2025 at 10:31

ephilus said:
I have already written it off, had a quick go at straightening them but it's beyond my tools and ability.

Have ordered another ROG B650E-E should be here Saturday

Royally annoyed myself as I was gentle as hell putting that new chip in but apparently now enough! Oh well expensive lesson

Thanks all for the trouble shooting!

Your welcome.

Update the bios and put the CPU in before putting it in the case which is a lot easier, you can test it on the motherboard box not the bag before hand if you prefer.

Let us know how you get on.