Modded ASUS P5Q/Pro/Deluxe/Premium BIOS

[JHS]

I know that i have cleared CMOS everytime i have installed mbios, but this battery remove? Is that necessary?

No, you don't need to pull the battery. All you need to do is move the jumper, wait, and move the jumper back.

Easier way is to flash with afudos and extra switches

afuXXX /i<ROM filename> [/o<save ROM filename>] [/n] [/p[b][n][c]]

/n - don't check ROM ID
/pbnc -
b - Program Boot Block
n - Program NVRAM
c - Destroy System CMOS

Removing the battery fully clears the CMOS, just setting the jumper to "clear" does not. To see this for yourself you will notice when not removing the CMOS battery the board holds various settings still such as time and date.

Not sure about the system clock but all other settings are cleared with /pbnc ( or /pc ) and never needed to move jumper or remove battery after flash. Few times after too aggressive OC though

Have to check the clock thing next time when I flash. Never really paid attention to it so not sure. But never had posting issue with those extra switches so far