Question Apps or bios at fault?

[Hotrod2go]

Hi,
I have a weird situation here with my Z590 Aorus Ultra (F5 bios) & CPU-Z v1.98 + HWiNFO v6.5 under win10 21H1.
Doing some RAM oc testing & dialling in 4133MHz for RAM, booting then running Memtest86, it passes but upon booting into windows & running CPU-Z & HWiNFO, they both show RAM at only 4000MHz?
Rechecking the bios certainly shows 4133MHz is dialled in & set.
Not sure what is at fault here? is this a problem with the windows apps or the bios itself?

Thanks.

 

[UsandThem]

If your BIOS and Windows 10 shows the RAM running at DDR4 4133 speeds, it would be the apps that are incorrectly reporting the speed.

 

[Hotrod2go]

Thanks UsandThem, I did check windows task manager & yep its reporting the correct RAM speed from bios. Must have got bogged down in the details of my RAM oc to remember to check there.