System abnormally slow during win installation

[Finnedsgang]

Hi I recently build a new pc with these components

9800x3d
X870P Asus prime
32gb Kingston fury 6000mhz cl30
7900xt Radeon gpu

but I used the old disks from the previous setup (7900x b570 mb) without doing a fresh install.
The system was very slow at boot (like 15min ) but the first time I was able to load windows and worked just fine. I updated to 24h2 and rebooted but this time the system didn’t boot. It was locked on the Asus motherboard logo at boot. I tried everything, then I decided to make a fresh install because i thought that it was a os issue, but the system was still extremely slow (like an hour for every blu screen of the installation process) running from the bootable usb, so slow that I restarted multiple times thinking of a freeze. I noticed that was only extremely slow and not freezes when I left for like 4 hours and found some of the installation screens fully loaded.

I tried multiple ports. I changed usb keys. Used an nvme. I also made a new usb bootable with Rufus and the Iso file and not the media creation tool from ms store.

I was in despair so i removed the old disk (an nvme from Kingston fury pcie 4.0 and installed a new one (Samsung nvme 990 pro ) But same issue.
So I reinstalled the old disk with the win11 installation and left the entire day on the booting screen and at the return I found the pc doing a “correction” and booting. The system worked normally but at the reboot the same issue. Hours on the boot Asus logo

don’t know what to do. Please help!

 

[eidairaman1]

Update your motherboard bios

 

[Finnedsgang]

Thanks for the reply and the help. I forgot to add that I Already done the bios update with the latest Agesa available on the site

 

[eidairaman1]

Do a clear cmos first, no drives attached at all, let the system boot up to post screen only

 

[nomdeplume]

AMD+ ASUS = Memory Training that takes ages is my guess.

 

[Gunbound]

AMD+ ASUS = Memory Training that takes ages is my guess.

Referring to using EXPO by chance? If so I never figured that out. I use whatever automated config to enable it in bios and during every boot it turns on, shuts off, does its weird thing for 15-20 seconds.. boots again and finally starts like normal almost like what you would expect after putting in a different ram config but EVERY time.

 

[nomdeplume]

Referring to using EXPO by chance? If so I never figured that out. I use whatever automated config to enable it in bios and during every boot it turns on, shuts off, does its weird thing for 15-20 seconds.. boots again and finally starts like normal almost like what you would expect after putting in a different ram config but EVERY time.

I'm going off relayed experiences of 30 minute memory training. Not a one and done either. I did wonder if they kept interrupting this. Which had the effect of forcing BIOS to take more drastic measures.

 

[Finnedsgang]

Yes I’m aware of the memory training issue, but should not affect the windows installation, only the post time, right ? On my other pcs is only affecting the reboot time (and sometimes not booting or restarting at all )
Why it take ages to load every single screen of the installation process ?

Referring to using EXPO by chance? If so I never figured that out. I use whatever automated config to enable it in bios and during every boot it turns on, shuts off, does its weird thing for 15-20 seconds.. boots again and finally starts like normal almost like what you would expect after putting in a different ram config but EVERY time.

Knowing the issue, I didn’t activate expo, and left anything to auto

 

[nomdeplume]

Fair enough.

Patriot low level flash tool on flash drive then load OS again might prove helpful. Wouldn't hurt to reseat the RAM and do a full CR32 out clear CMOS beforehand.
When things get weird PSU/cables are always suspect.
Maybe someone with a bit more experience on AMD will take the ball.