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c2
n00b
Joined: 14 Mar 2025
Posts: 37
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 Posted: Thu Apr 17, 2025 10:56 pm Post subject: What to do before upgrading cpu |
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Hello, so I am upgrading from a 7800x3d to a 9950x3d, what do I need to do before I install the new CPU. If possible I would like to do as much of the recompiling on the new CPU but I assume i will need to reinstall firmware kerrnel and microcode.fir the record I have March=native in my make.conf
Also any advice on any advice for getting things working the best with a dual ccd system |
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Ralphred
l33t
Joined: 31 Dec 2013
Posts: 779
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| Posted: Fri Apr 18, 2025 3:27 pm Post subject: Re: What to do before upgrading cpu |
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| c2 wrote: | | Hello, so I am upgrading from a 7800x3d to a 9950x3d, what do I need to do before I install the new CPU. If possible I would like to do as much of the recompiling on the new CPU but I assume i will need to reinstall firmware kerrnel and microcode. |
Actually no, the 7800 and 9950 both use the same /lib/firmware/amd-ucode/microcode_amd_fam19h.bin file. | c2 wrote: | | For the record I have March=native in my make.conf |
That will pretty much cover it, there are no "missing extensions" when comparing zen5 to zen4, just new ones added. | c2 wrote: | | Also any advice on any advice for getting things working the best with a dual ccd system |
My understanding for the zen5 series is "it just werks", but I could easily be wrong. Enabling the active pstate driver and perfcore (amd_pstate=active amd_perfcore=enabled) on the kernel command line is always nice though. |
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c2
n00b
Joined: 14 Mar 2025
Posts: 37
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| Posted: Fri Apr 18, 2025 3:55 pm Post subject: Re: What to do before upgrading cpu |
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| Ralphred wrote: | | c2 wrote: | | Hello, so I am upgrading from a 7800x3d to a 9950x3d, what do I need to do before I install the new CPU. If possible I would like to do as much of the recompiling on the new CPU but I assume i will need to reinstall firmware kerrnel and microcode. |
Actually no, the 7800 and 9950 both use the same /lib/firmware/amd-ucode/microcode_amd_fam19h.bin file. | c2 wrote: | | For the record I have March=native in my make.conf |
That will pretty much cover it, there are no "missing extensions" when comparing zen5 to zen4, just new ones added. | c2 wrote: | | Also any advice on any advice for getting things working the best with a dual ccd system |
My understanding for the zen5 series is "it just werks", but I could easily be wrong. Enabling the active pstate driver and perfcore (amd_pstate=active amd_perfcore=enabled) on the kernel command line is always nice though. |
Thanks, so there no prep before installing it, just put in the new CPU and recomplie for zen 5 |
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Ralphred
l33t
Joined: 31 Dec 2013
Posts: 779
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| Posted: Fri Apr 18, 2025 4:55 pm Post subject: Re: What to do before upgrading cpu |
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| c2 wrote: | | Thanks, so there no prep before installing it, just put in the new CPU and recomplie for zen 5 |
I'd do a bios update first if one exists, but yeah, pretty simple swap in this case. |
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Kernel & Hardware
