help please

[23703jim]

i have a blizzard mark iv turbocard in my 1200. i lost my owners manual and wish to turn off the board and revert back to a normal 1200 on occasion. i know i can but for the life of me i cannot remember which key or keys to press at bootup?
would one of you kind folks assist me?

thanks

james portsmouth va :-?

[doctorq]

Hold down the "2" key during reset. Not on the numeric keyboard, but the other one.

[Narayan]

Some would go so far to tell you to hold the both mouse buttons pressed during reset. This way you enter the menu in which you do this.