thedark
Second Lieutenant
Joined: 30 Jul 2005
Posts: 1074
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 Posted: Thu Aug 04, 2005 1:53 pm Post subject: CLEAR CMOS |
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The following debug routine will clear CMOS, BIOS, Passwords, Settings, Viruses, and other items residing in the CMOS. During this process you may get returned characters which are an indication that the string has gone in, if you by chance get ERROR ensure that you have typed the line in correctly, if not retype. Ensure that you do not skip any lines, that it is ALL typed in correctly to help prevent problems. Before running this Debug routine also ensure that you have read the above disclaimer.
After typing debug you will get "-" which is were you can begin by typing A and pressing enter.
A <ENTER>
MOV AX,0 <ENTER>
MOV AX,CX <ENTER>
OUT 70,AL <ENTER>
MOV AX,0 <ENTER>
OUT 71,AL <ENTER>
INC CX <ENTER>
CMP CX,100 <ENTER>
JB 103 <ENTER>
INT 20 <ENTER>
<ENTER> Note: Nothing is typed on this line
G <ENTER> By pressing G this will execute the above script, ensure you have read and agree to the above disclaimer.
Q <ENTER>
Then reboot and you will get a Setup Checksum Error. Go into setup, correct all the incorrect values, time, date... |
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