Question PC blackscreen after installing a new CPU

Mar 5, 2025
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I bought a Ryzen 5600 2 years ago to replace my 2600. After installing it i got a black screen. I fixed it by switching my RAM slots from A2 and B2 to B2 and A1 and forgot about it. Yesterday I tried to switch them back to A2 and B2 but got a black screen again. Then i switched them back to B2 and A1 like last time, but this time it didnt work and i got a black screen again. I also have a red CPU light burning on my MSI b450 Tomahawk which indicates CPU issue but the pins were undamaged atleast

Computer Boots normally with one ram stick. Doesnt matter where the RAM stick is or which RAM stick it is.
Tried to reset CMOS
Tried to boot with one stick and change xmp and boot with 2 sticks --> blackscreen

I have some rather important official matches coming and i need to fix my pc asap
 
Welcome to the forums, newcomer!

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. BIOS version for your motherboard at this moment of time.

I bought a Ryzen 5600 2 years ago to replace my 2600.
Did you update the BIOS prior to swapping the processors?

I fixed it by switching my RAM slots from A2 and B2 to B2 and A1 and forgot about it.
Rams should always be on slots A2 and B2. If you're having to swap ram slots, then it's possible that the integrated memory controller in the processor is faulty.
 
Welcome to the forums, newcomer!

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. BIOS version for your motherboard at this moment of time.

I bought a Ryzen 5600 2 years ago to replace my 2600.
Did you update the BIOS prior to swapping the processors?

I fixed it by switching my RAM slots from A2 and B2 to B2 and A1 and forgot about it.
Rams should always be on slots A2 and B2. If you're having to swap ram slots, then it's possible that the integrated memory controller in the processor is faulty.
Oh sorry!

R5 5600
HYPER 212 EVO
MSI B450 TOMAHAWK
2X8 G SKILL RIPJAWS 3200MHZ CL16
ASUS 1070TI CERBERUS
550W Seasonic FOCUS PLUS GOLD (7 years old)
KINGSTON SA400S37240G
BARRACUDA 1TB HDD SATA III 7200rpm 64mb
FOCUS G WINDOWED ATX
WINDOWS 11
AOC 25G3ZM/BK 24,5"

I downloaded the latest BIOS when I upgrade my CPU 2 years ago, on my way to buy a USB stick to download the newest version

Rams should always be on slots A2 and B2. If you're having to swap ram slots, then it's possible that the integrated memory controller in the processor is faulty. any possible fix to this or do I just need to finally upgrade to a 7800x3d