B350-F Gaming; Cannot adjust Memory Voltage

[Arhentir]

MOBO: Asus ROG Strix B350-F Gaming BIOS ver : 4024
CPU : Ryzen 5 1400 3.8GHZ
MEM : Crucial BLS8G4D240FSB 2x8gb ddr4 2400mhz cl16 1.2v

I cannot change DRAM voltage.
Stock voltage is 1,2v. If change it to 1,35v System completely hangs on save stage.(F10 key)
After forcing hard-reset, in BIOS DRAM voltage still 1,2v.(not saved my setting.)
Dram frequency is 2400mhz.Only dram voltage adjusted.

I can adjust dram frequency to 2666mhz @ 1.2v without problem.System POST fine.
Only cannot adjust dram voltage.

I think its a BIOS bug.

[Arhentir]

UP!

[Arhentir]

UP!

[panzlock]

Support thread for the B350-F: https://rog.asus.com/forum/showthread.php?94642-ROG-STRIX-B350-F-GAMING-issues

I reckon you might want to roll back to an earlier BIOS. Read the thread above for the most stable and functional version. People seemed to like 3803 or 3805.

Maybe RAM is defective.

Does the problem occur when you apply standard D.O.C.P.? Or are you manually changing timings and voltage?

[Arhentir]

I have plans about upgrade to 3rd gen ryzen cpu.I cannot downgrade BIOS version.
I tested my memory with memtest no error reported.It's shows there is no defectived h/w.
BIOS rejects save my 1.35v setting i dont know why?