Question New CPU not working with red light on mobo but old cpu works

[dthomas1266]

I upgraded my PC with 3 brand new parts
CPU- ryzen 5 5600x
GPU- 6800xt
PSU- 750W


Here are the rest of my specs I have been using before the upgrade

CPU- ryzen 5 2600
GPU- RX 580
PSU- 600 W Evo
Mobo- B450 ATX
16 GB RAM ( slot 2 and 4)


After putting everything in , the cpu red light comes on with the new cpu with no display . So I put my old CPU back in and it boots up for a min or 2 but then shuts off.

Side note - I used a very small amount of thermal paste . I ordered more but idk if that could be it for it not working . But what do you guys think?

 

[beyondlogic]

I upgraded my PC with 3 brand new parts
CPU- ryzen 5 5600x
GPU- 6800xt
PSU- 750W


Here are the rest of my specs I have been using before the upgrade

CPU- ryzen 5 2600
GPU- RX 580
PSU- 600 W Evo
Mobo- B450 ATX
16 GB RAM ( slot 2 and 4)


After putting everything in , the cpu red light comes on with the new cpu with no display . So I put my old CPU back in and it boots up for a min or 2 but then shuts off.

Side note - I used a very small amount of thermal paste . I ordered more but idk if that could be it for it not working . But what do you guys think?

when upgrading remove the always reset your settings in bios.

also what is the new psu called.

remove the watch battery or coin battery in the motherboard with old cpu and cooler installed and 1 ram stick in slot 2 from the cpu cooler.

then put the battery back in after 2 minutes have passed.

try booting into bios then and update the bios you need to update the bios to run 5600x.

you may need to swap out 6800 xt back to your rx 580. aswell.

remove all amd graphic drivers from the windows os once you get back in.

 

[dthomas1266]

when upgrading remove the always reset your settings in bios.

also what is the new psu called.

remove the watch battery or coin battery in the motherboard with old cpu and cooler installed and 1 ram stick in slot 2 from the cpu cooler.

then put the battery back in after 2 minutes have passed.

try booting into bios then and update the bios you need to update the bios to run 5600x.

you may need to swap out 6800 xt back to your rx 580. aswell.

remove all amd graphic drivers from the windows os once you get back in.

Wow i appreciate the fast response man! And the new psu says “Sama X Series XF750w” I never heard of this brand but it was on sale lol and I will begin to troubleshoot now

 

[beyondlogic]

Wow i appreciate the fast response man! And the new psu says “Sama X Series XF750w” I never heard of this brand but it was on sale lol and I will begin to troubleshoot now

return psu if you can you may have got a melon unit

https://www.lttlabs.com/articles/psu/sama-xf750w

see if your psu boots with your old power supply and graphic card.

 

[dthomas1266]

when upgrading remove the always reset your settings in bios.

also what is the new psu called.

remove the watch battery or coin battery in the motherboard with old cpu and cooler installed and 1 ram stick in slot 2 from the cpu cooler.

then put the battery back in after 2 minutes have passed.

try booting into bios then and update the bios you need to update the bios to run 5600x.

you may need to swap out 6800 xt back to your rx 580. aswell.

remove all amd graphic drivers from the windows os once you get back in.

Fixed ! I feel kinda dumb but I was kinda lazy went changing the psu and used the same cords from my old psu since they looked identical and fit the slots but I used the cords that came with the new one and now it works lol thanks !!

 

[ohio_buckeye]

NEVER EVER EVER EVER use the old psu cables. They make look identical but could be wired differently. You’re fortunate you didn’t fry something.

 

[dthomas1266]

NEVER EVER EVER EVER use the old psu cables. They make look identical but could be wired differently. You’re fortunate you didn’t fry something.

😅😅😅

 

[steveb1976]

did you check if the bios was upto date to accept the new cpu? if not you will need to install old cpu .. then bios flash and then put new cpu in and you should be good to go

 

[ohio_buckeye]

😅😅😅

Maybe I came across as too dramatic, but I’m pretty sure there are folks who’ve done that who’ve come to this forum. So just better safe than sorry. But anyway if you got the new psu and gpu going now then as Steve suggested, you’ll want to make sure your bios is updated for the newer cpu.

 

[beyondlogic]

Fixed ! I feel kinda dumb but I was kinda lazy went changing the psu and used the same cords from my old psu since they looked identical and fit the slots but I used the cords that came with the new one and now it works lol thanks !!

glad that its working as someones already said never use another psus cords only what comes in the box

update the bios as b450 needs a bios update to fully work with 5000 series