[comp.sys.ibm.pc.hardware] Changing CMOS under Phoenix BIOS.

rjs3@cbnewsl.att.com (Robert J. Snyder, III) (09/21/90)

I have two friends with AT style clones containing the Phoenix BIOS.  I think
they need to have their CMOS configuration information updated to reflect
their current disk arrangement.  Unfortunately, the instructions they
got with their machines don't really address this issue.  On my own machine
with an AMI BIOS, I can get to a configuration screen during bootup by
typing CTRL-ESC, but this doesn't work on my friends machines.  I looked
in several books on PC hardware but couldn't find any references on how
to set the correct values, although I did find ways to save and restore
the existing CMOS values with some small assembly language programs.  Can
anybody give me some clues?  Please send me mail and I will summarize
any successful answers in a later posting.

	Robert Snyder
	rjs3@cbnewsl.ATT.COM, or
	rjs@moss.ATT.COM

gettys@regent.enet.dec.com (Bob Gettys N1BRM) (09/24/90)

In article <1990Sep21.155843.24804@cbnewsl.att.com>, rjs3@cbnewsl.att.com (Robert J. Snyder, III) writes...
> 
>I have two friends with AT style clones containing the Phoenix BIOS.  I think
>they need to have their CMOS configuration information updated to reflect
>their current disk arrangement.  Unfortunately, the instructions they
>got with their machines don't really address this issue.  On my own machine
>with an AMI BIOS, I can get to a configuration screen during bootup by
>typing CTRL-ESC, but this doesn't work on my friends machines.  I looked
>in several books on PC hardware but couldn't find any references on how
>to set the correct values, although I did find ways to save and restore
>the existing CMOS values with some small assembly language programs.  Can
>anybody give me some clues?  Please send me mail and I will summarize
>any successful answers in a later posting.
> 
>	Robert Snyder
>	rjs3@cbnewsl.ATT.COM, or
>	rjs@moss.ATT.COM



	I have a Phoenix Bios in my 386SX and it is accessed by hitting
ctrl-alt-S at the dos prompt. The rest of it is pretty much self explanatory
and easy to follow. 

	/s/	Bob

cgordon@vpnet.chi.il.us (Gordon Hlavenka) (09/26/90)

>>        I have a Phoenix Bios in my 386SX and it is accessed by hitting
>>ctrl-alt-S at the dos prompt. The rest of it is pretty much self explanatory
>>and easy to follow.
>
>Aparently, there is no standard method even under the same brand BIOS.
>My Phoenix 386 BIOS uses CNTRL-ALT-ESC.  The original poster may want
>to try that too.  Some computers also use CNTRL-ALT-ENTER.

Mine takes CTRL/ALT/S, but if you're not in a reasonably vanilla display
mode the screen will be trashed or truncated when you return.

-----------------------------------------------------
Gordon S. Hlavenka            cgordon@vpnet.chi.il.us
Disclaimer:                Yeah, I said it.  So what?