[RPL-U 2P+8E 15W] Fast V mode disable

[Juin]

Hi Intel,

Our board is RPL-U 2P+8E 15W that can support FVM(Fast V mode) function for IA rail. If our design of Power components can design enough to Iccmax and can pass VRTT verification for Iccmax requirement. Can I set FVM function disable on BIOS? Thanks.

[VonM_Intel]

Hi, Juin.

Thank you for posting in our Community.

What specific BIOS settings have you already tried, and are you unable to locate the option to disable FVM? Understanding what steps have been taken can help me provide more targeted assistance. Can you confirm if the current BIOS version supports disabling the FVM (Fast V mode) function? This will help determine if the option to disable FVM is available in your BIOS settings. Are there any performance or stability concerns you’re worried about when disabling FVM? This helps me identify if there are any potential drawbacks that need to be considered when making this change. Is the RPL-U 2P+8E 15W the exact model of your board? If not, could you please share the exact make and model of it?

In the meantime, I’ll need to conduct additional research on this concern and will post an update in this thread once I have more information about this matter.

Have a nice day!

Best regards,

Von M.

Intel Customer Support Technician

[Juin]

Hi Von,

Yes, RPL-U 2P+8E 15W is designed on our board. As I known, BIOS setting can disable FVM mode. But I am Power engineer, the BIOS setting may understand a little. From 686872 PDG document, Fast V mode limits Itrip current (Itrip < Iccmax), so that VR Powers (Inductor, MOSFET, etc.) don't occur in excess of Itrip. In order to best performance, we can do VR design to support Iccmax to enough to do best for processor. In summry, I want to disable FVM by default on BIOS setting for RPL-U 2P+8E 15W platform. Thanks.

[VonM_Intel]

Hello, Juin.

Thank you for the clarification. Based on your explanation, it seems that disabling FVM by default in the BIOS for the RPL-U 2P+8E 15W platform could be a good approach to ensure optimal performance while preventing any potential limitations with Itrip current. Since you're a Power engineer, your insight into VR design and the importance of ensuring Iccmax is appropriately supported for the processor is very valuable. I'll make a note of this suggestion and will conduct additional research to explore how we can implement this change in the BIOS settings.

Best regards,

Von M.

Intel Customer Support Technician

[VonM_Intel]

Hello, Juin.

To gain a better understanding of this issue, could you please provide the specific make and model of the board you are using? It is possible that "Fast V Mode" is a unique feature or setting associated with a particular device, software, or manufacturer.

Best regards,

Von M.

Intel Customer Support Technician

[VonM_Intel]

Hello, Juin.

Have you had a chance to review my previous response? Please let us know if you require any further assistance. I'm here to help.

Best regards,

Von M.

Intel Customer Support Technician

[VonM_Intel]

Hello, Juin.

I have not heard back from you, I will close this inquiry now. If you need further assistance, please submit a new question as this thread will no longer be monitored.

Best regards,

Von M.

Intel Customer Support Technician