To enter the CMOS, try F2. If that doesn't work, you might try holding F2 &
booting.

Most laptops that I have seen use (FN)F5 to 3-way toggle the LCD, external,
or both.

WT

wrote in message
oups.com...
I have a Twinhead laptop with the following markings: Slimnote 486SLC.
The bios information that comes up on boot is as follows:

CL-G6410VGA Bios Version 2.10C
Copyright 1992 Cirrus Logic Inc, All Rights Reserved
Copyright 1987-1990 Quadtel Corp, All rights reserved

Phoenix Bios (TM) A386 Version 1.01
Copyright (C) 1985-1991 Phoenix Technologies LTD
All rights reserved

Phoenix Bios for VLSI 82C310/82C312
80486LC Bios version 1.1, 11/22/93 All rights reserved
THAPM bios for VLSI 82C310/312 Version 1.20

Doing a system info using "Checkit" shows that the Rom bios is Phoenix
and the date is 4/19/90
The processor is identified as a 80386AT machine (A20 active),
(Protected)
Note: The diagnostic program I used, (Checkit) is rather old so it
could be mistakenly identifying this machine as a 386 when it is in
fact a 486 but that is not my concern. The machine has a VGA accessory
jack in the back so that I'm assuming you can connnect a VGA monitor to
it. I never tried to do this until today and found that it will not
work. You do see some raster changes taking place on the monitor during
bootup but you never get a display. I was thinking that perhaps I might
have to go into bios and tell the machine that it is outputing to an
external display rather than the LCD one? If so that calls for two
questions. Should I be able to get a simultaneous display on the laptop
as well as the external monitor? And then if not how do I get into
bios? (I would like to know this anyway). I have tried Delete, Alt,
Cont Z , C, F1 every combination that I could think of and nothing
works. You see, I need to connect up a video projector that came in for
repair to this laptop and need to determine that it will produce a
normal display on a VGA monitor first. Any assistance with this problem
will be greatly appreciated.
Lenny Stein, Barlen Electronics