Bios upgrade help needed

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Article #8821

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#8821

From: Bill Endter RCU/DEC
Date: Mon, 01 Apr 1991 17:13

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	   I am looking into upgrading the bios on my 386 system so I 
	can add a larger hard disk.  The current bios is Phoenix V3.06
	dated 1985,1986.  My system board is made by UNITRON and called a
	Mini 386 system.  It uses the Chips and Technologies chip set.
	   I am very confused about bioses and need some answers.  Will 
	any 386 bios probably work on this board?  I know the bios I have
	is on less dense chips (128kb) and requires a setup disk to set 
	parameters.  The newer bioses I have seen are on 256kb chips.
	Will these work, or is a change required on the mother board?  Do
	companies sell upgraded bioses on the lower density chips?
	   Also, I know that some companies use a modified bios.  Is there 
	any way to tell if the bios has been modified?  My system has been 
	very stable and I have never had any incompatibilty problems.

		Thanks,

		Bill

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!samsung!olivea!apple!agate!riacs!pioneer.arc.nasa.gov!endter
From: endter@pioneer.arc.nasa.gov (Bill Endter RCU/DEC)
Newsgroups: comp.sys.ibm.pc.misc
Subject: Bios upgrade help needed
Keywords: bios
Message-ID: <1991Apr1.171323.5311@riacs.edu>
Date: 1 Apr 91 17:13:23 GMT
Sender: news@riacs.edu
Reply-To: endter@pioneer.arc.nasa.gov (Bill Endter RCU/DEC)
Organization: RIACS, NASA Ames Research Center
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