Windows won't start after CPU change
Solvedgugu01 Posted messages 15669 Registration date Status Contributor Last intervention -
I upgraded today from a Ryzen 5 3600 to a Ryzen 9 5900x, and I also added water cooling.
However, as soon as I start the computer, it doesn’t boot into Windows; I get an "automatic repair" with a blue screen.
I tried updating the BIOS, but nothing changes. I have an MSI B450 Gaming Plus Max motherboard (it's stated to be compatible).
I have no idea how to make it work; I don't understand.. does anyone have an idea?
Thank you
11 answers
Hello
And after "automatic repair," what happens?
For the BIOS, it would have been necessary to flash it beforehand, with the 3600, because the B450 chipset on your motherboard only accepts Ryzen 5xxx with the latest versions.
You would need to put the 3600 back in to check the BIOS version and flash it.
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So it's good on that side, if you can see the last one in the BIOS.
If you have multiple drives, disconnect them except for the one where Windows is.
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W10 or W11?
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The repair message may be due to your disk being in MBR and not in GPT, which is necessary for Windows 11. The latest versions of BIOS validate this option by setting the BIOS to UEFI mode, which makes it impossible to boot Windows 10.
In this situation, the simplest thing is to format the disk and reinstall Windows on the disk in GPT.
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Well, you at least have access to Windows, back up as much of your data as possible,
then the best thing would be either to reinstall Windows properly or to repair it without data loss.
Thank you for your help.
I have some news... after seeing that, I changed the boot in the BIOS to the hard disk instead of the Windows disk and it works!
However... the processor is at 55 degrees on the desktop and as soon as I launch a game, it goes up to 85 degrees and suddenly there's a blue screen, the computer crashes and restarts, and it keeps doing that in a loop.
I don’t understand why, the water cooling seems to be working well though.
Water cooling is overrated; you will find many posts on the forum due to issues with this equipment, which was originally and should be reserved for overclocking.
Make sure to check your setup, because yes, 55 degrees at idle is not normal. Personally, I only use airflows; it's just as effective, easier to implement, and more reliable.
UPDATE :
After fiddling around a bit I have a better understanding.
When I'm in the BIOS for the PC to boot into Windows, I have to set the "BIOS CSM/UEFI Mode" to CSM. Once that's done, I see "Hard Disk" appear. I can then select it to BOOT from there instead of "UEFI Hard Disk: Windows Boot Manager," which doesn't work.
Once that's done, I ran two tests:
One on the latest version of the BIOS -> Windows loading very slowly and then not working
One on the second to last version of the BIOS -> Windows loading works, I can access my session, etc., but as soon as I do something resource-intensive, it crashes with a blue screen and restarts.
Good evening!
""55 degrees on the desk and as soon as I launch a game it jumps to 85 degrees all of a sudden""
Did you forget to put thermal paste between the processor and the water block (or put too much)?
And did you remove the protective plastic film from the water block (the surface in contact with the processor)?
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Good evening!
I think I didn't go wrong on this side, the thermal paste is already pre-applied on the water cooling I bought, so I just had to place it on the processor.
It's the iCue H100i Elite Capellix
After taking the time to position it correctly on the processor, I moved it a bit, I'm not sure if that affects the "spreading" of the paste, but I don't think it's a problem in itself.
Info for assembly > https://help.corsair.com/hc/en-us/articles/360049453232-How-to-Install-the-iCUE-Elite-Capellix-liquid-CPU-cooler-for-AMD-sockets
Check this assembly, I don't think your Windows had anything wrong, but it could be related to this overheating issue, a hardware problem.
(starting up, blue screen, ... once your PC starts, it reaches 85 degrees in 3 clicks, at Windows startup it requires resources so it must be overheating from the start)
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Yes, that's exactly what I did in terms of assembly.
I'm wondering if I should go buy a cooler this afternoon to test, but I'm afraid of wasting my money if that's not the issue...
But if it's not that, I don't see why there would be overheating... There's a track that seems strange to me, but I've seen several comments saying they disabled the "4.9GHz boost of the processor," but I don't know where to check that. I should clarify that it's not overclocked; I haven't touched anything in that regard.
Well,
I finally succeeded.
To recap, I changed the BIOS version to the one that corresponds to my processor.
Then in the BIOS I disabled the core boost that was increasing the processor above normal.
It seems to be working very well now (40-45 degrees on the desktop and 55 degrees in-game)
Thanks to everyone for trying to help me
Thank you, but as I mentioned in my comment, the card is indeed compatible according to MSI on their website.