New CPU not working with upgrade

charlie8926 · 10 Jan 2025 at 21:00

Hi guys, this is my first time posting and upgrading my PC.
I'm upgrading from an AMD Ryzen 5 3600 to an AMD Ryzen 7 5800X aswell as a new Graphics card, new RAM and a new CPU cooler which is a MSI MAG CORELIQUID 240R V2.
The new cooler isnt installed yet because of missing brackets to install it so I've been using the old cooler which is an AMD stealth socket.
The RAM and Graphics card work fine with the old CPU and cooler. But when I put in the new CPU with the old cooler all the lights turn on, all fans spin, but the red light for cpu stays on and there is no display on the monitor.
Anyone know if this is due to a problem with the new CPU or the old cooler not being the right spec. I can list all my parts if needs be.

charlie8926 · 10 Jan 2025 at 21:06

Motherboard - MSI B450 TOMAHAWK MAX ATX AM4 Motherboard
CPU - old is 6 core, new is 8 core
Graphics card - Radeon RX 7600 XT 16GB
RAM - Corsair Vengeance LPX 32 GB (2x 16gb)
CPU cooler - listed above

charlie8926 · 10 Jan 2025 at 21:10

tamzzy said:
update the bios: https://www.msi.com/Motherboard/B450-TOMAHAWK-MAX/support

Thank you, will do

charlie8926 · 17 Jan 2025 at 01:47

tamzzy said:
update the bios: https://www.msi.com/Motherboard/B450-TOMAHAWK-MAX/support

So today I was able to find time to do this, and it's not working. The red CPU light is still on and no display is showing. Should I take it to a tech shop and have them take a look at it or what should I do.

charlie8926 · 17 Jan 2025 at 12:40

freddie64 said:
What bios did you flash to?

Latest is a beta version (but should be ok).

If you flashed to this, try the one before (7C02v3J). You may have to use "bios flashback" to downgrade.

I watched a video about the same motherboard as mine, so I used the non-beta bios, used the msi mflash to do it, waited the full time for everything to download and stuff like that so I think I done it correctly

charlie8926 · 17 Jan 2025 at 12:43

SpellowHouse said:
Did you clear the BIOS? Make sure that the RAM is set to default speed and not EXPO. Could be that the RAM worked with the old CPU but not the new one.

I'm not one for overclocking as I wouldn't understand what I'm doing, so everything is set to default. The new RAM is the same as my friends who has the same cpu and his works fine so I'm not sure.

charlie8926 · 17 Jan 2025 at 12:46

jms198 said:
^^^I have am4, not sure I have EXPO with ddr4.

The old cooler if installed properly should see you into windows I would have thought.

Pins ok?

Does the bios need that incremental flash business where you need to wipe Bristol ridge with a flash before getting 5000 support with another flash.

I've been installing the old cooler the same way with old and new cpu, works with old but not with new. All the cpu pins are straight and none are missing.
I'm not too sure about the incremental flash as I know next to nothing about stuff like this

charlie8926 · 17 Jan 2025 at 12:48

tamzzy said:
If you're 100% sure the bios upgrade was done correctly then it's a DOA chip

How can I check if the bios upgrade is done correctly? And would it be worth just taking it to a tech guy to be certain

charlie8926 · 17 Jan 2025 at 12:58

mickyflinn said:
Can you test the new CPU in your friends pc ?

I possibly could, we're going on holiday in a day so it'll have to be next week. Just checked with him he has the same cpu and same ram just he has 4 of them rather than 2.

charlie8926 · 17 Jan 2025 at 13:01

WARburton said:
where did you buy the cpu from?

I'm pretty sure my dad got it off amazon like the rest of my parts old and new

charlie8926 · 17 Jan 2025 at 14:22

Vinno said:
I did this same upgrade on the same board, although to the X3D version. I can't remember specifically what the issue was but I remember having a similar problem where the new chip wouldn't work even after updating the BIOS. Try to keep playing with it, update the BIOS again, try different versions, reset CMOS etc.

Oh so is it a bit of a problem with the compatability of the motherboard then? Would I just find a youtube video for resetting CMOS?

charlie8926 · 17 Jan 2025 at 14:48

tamzzy said:
does the pc work with your old cpu? if it does then you can check the bios version in bios

Just checked it there, it is the right version. However the website release date, text file date, and bios build date are all different.

charlie8926 · 17 Jan 2025 at 14:49

OldKitMan said:
what method did you use to flash the bios? Did you download it using MSI Center or did you download it to USB, extract it and then update the BIOS by rebooting and going into the bios update facility in the BIOS itself? I've never got the MSI Center method to work so always do it via USB and BIOS utility. if you go into your BIOS though it should show you there what version you have installed?

I used the USB with M-Flash and it is saying the bios version is correct

charlie8926 · 17 Jan 2025 at 14:56

WARburton said:
the CPU box was sealed right?

Yes, fully sealed, all pins are straight and none missing

charlie8926 · 17 Jan 2025 at 15:39

WARburton said:
id report it and request a replacement, you have time to post it before you leave and new one would be waiting for you when you get back

Sounds like a good idea, I think that might be best

charlie8926 · 17 Jan 2025 at 15:40

WARburton said:
also pulling a stick of ram can for the board to recheck.

For how long and pc off I assume

charlie8926 · 17 Jan 2025 at 17:53

mickyflinn said:
There is a jbat jumper next to the bios battery this resets the cmos, download the manual it shows how to reset the CMOS

I prefer to wait 15 mins go make a cup tea and drink it

Makes sure you've unplugged the PSU from the wall

Thank you cheers

charlie8926 · 17 Jan 2025 at 23:25

I

freddie64 said:
Looking at the CPU compatibility list there are 2 x 5800X, one is B0 stepping and the other is newer B2.

If you have the B2 you will need the latest beta bios.

I'll have a look when I'm home as I'm not too sure.