Downgrade bios, MOBO P5N-E SLI

[kamio]

Hello,

i have mobo P5N-E SLI with XEON 5460 and i upgrade bios on 1406 with microodes for xeon. But i can't overclock processor now I must downgrade bios to 608.bin and EZ FLASH 2 don't allow this operation because bios 608 is older then 1406. Is possible save 608 as newest? 1406 is from 2009 year and 1406 with microcodes is 2015.

Thanks and sorry for english.

[DeathBringer]

Did you tried to flash it from native DOS with Phoenix Award BIOS flash tool?
Read this: AWDFLASH BIOS Update Procedure!
P.S. Why you can't overclock with new BIOS?

[kamio]

Yes, i tried AWDFLASH http://postimg.org/image/3vmvbvzhz/. I don´t know why i can't OC. Primary FSB is 1333mhz when i go to 1335mhz is everything OK, but when i go to 1340 windows go down http://www.overclock.net/t/300149/3ghz-q...n-e-sli/50 (5. Post)

[DeathBringer]

Try other version of AWDFLASH.

[kamio]

Invalit opcode... write now

[DeathBringer]

awdflash 0608.bin /cd/cp/py/sn/e/f
Many version of AWDFLASH is here.