Help Needed with ring Voltage Control on MSI Z790 Carbon (i7-14700K)

Joined
Oct 12, 2024
Messages
1
Hi everyone,

I’m running an Intel i7-14700K on an MSI Z790 Carbon WiFi motherboard, and I’ve encountered an issue with voltage control for Pcache (Ring). I’m using the "Adaptive + Offset" voltage mode in BIOS, which works well for my P-core voltage (1.2V at 5.4 GHz), but it doesn’t seem to apply any offset to the Pcache voltage—it stays at 0V offset no matter what I try.

The system becomes more stable when I adjust the Pcache voltage using ThrottleStop, but I’d like to control this directly in BIOS for a more permanent solution. However, the BIOS doesn’t seem to have a separate option to control Pcache voltage independently of the core voltage.

Does anyone know if there’s a way to manage the Pcache voltage on this board, either by using a different voltage mode or some BIOS tweak? Would setting the voltage control to "By VRM" or another option help manage Pcache properly? Any suggestions or insight into why the Adaptive + Offset mode ignores Pcache voltage would be greatly appreciated.

Here are my current settings:

  • Adaptive + Offset (-125mV)
  • LLC5
  • ACDC 14/18
  • VRM voltage limit set to 1.35V
    7200 cl 34 1.4v
    SA voltage: 1.2v
Thanks for your help!
 
The BIOS for most motherboards only allow a single offset voltage value. This one value is supposed to be automatically written to both the P core and P cache registers within the CPU. These two registers are separate. Whoever wrote the BIOS for your motherboard must have overlooked doing this.

Try contacting MSI and see if they are willing to fix this bug. The only other option is to continue using ThrottleStop.
 
Back
Top