Question for Z790 users - new BIOS

I recently upgraded the BIOS in my Gigabyte Z790 UD AC motherboard because it had new microcode updates for Intel damage mitigation on 13th and 14th generation CPUs. It worked great, but now the PC is as slow as treacle in January. The solution to the micro-code issue seems to be to have all of the cores parked all the time. Boot and shutdown times have lengthened considerably since the upgrade as well.

Has anyone else noticed this? Or is this unique to my Gigabyte mobo? I don't really want to revert to the previous BIOS if the new one has more fixes that will lengthen the life of my CPU. This PC has really been messing up lately and I am not really sure why...

No, not on my Asus z790 board.

Hi.

Sorry for the trouble you are experiencing. Have you done a BIOS reset after the update ? Some of the BIOS settings may have changed. Do you have a BIOS settings backup ?

There is a fix in Intel web site for Asus M/B. It may not be related to your BIOS update problem but I thought it might give you a clue:


Hope this helps.

My recommendation is that you review all the BIOS options and check if there are any new or changed values from the previous version. But of course, for that you should have taken a note or captured in pictures how you had the previous BIOS, something I always recommend to do.

I have read the case of a user with an MSI motherboard who described a situation similar to yours. It turns out that the new BIOS had changed some values and introduced new options that must be revised and optimized.

Another recommendation is to completely reset the BIOS, preferably by using the physical BIOS reset button or by clear CMOS. After an upgrade, there may be options with values that are not suitable for the new BIOS.