wolpert@hpisla.HP.COM (David Wolpert) (09/10/86)
PC 6300 Memory Expansion
Once upon a time, somebody posted instructions for adding memory
to the AT&T PC6300 ("640K on the motherboard"). I don't seem to
have these instructions around any more. It was fairly simple,
just plug in 256K chips and (???)...
SO... if you know how to do this, mail me instructions. So I don't
get a huge number of replies, please flip a coin first. Mail only
if it comes up "heads" twice in a row.
(If the coin says "heads" five times in a row, go ahead and post
your answer).
*!hplabs!hpisla!wolpert David Wolpert
/_ __ HEWLETT Instrument Systems Laboratory
/ / /_/ PACKARD P O Box 301 - Loveland, CO 80539
/
======================================================================
"Be joyful always; pray continually; give thanks in all circumstances"gpw@ihdev.UUCP (G. P. Wilkin) (09/15/86)
> PC 6300 Memory Expansion > > Once upon a time, somebody posted instructions for adding memory > to the AT&T PC6300 ("640K on the motherboard"). I don't seem to > have these instructions around any more. It was fairly simple, > just plug in 256K chips and (???)... > > SO... if you know how to do this, mail me instructions. So I don't > get a huge number of replies, please flip a coin first. Mail only > if it comes up "heads" twice in a row. > > (If the coin says "heads" five times in a row, go ahead and post > your answer). > *!hplabs!hpisla!wolpert David Wolpert > /_ __ HEWLETT Instrument Systems Laboratory > / / /_/ PACKARD P O Box 301 - Loveland, CO 80539 > / > ====================================================================== > "Be joyful always; pray continually; give thanks in all circumstances" One, two, three, four, oops, er five..... :-) These are the correct settings for 1.43, they were unchanged for my 6300 which has the 256k rams. gpw USE AT YOUR OWN RISK!!!!!!!!!!!!!!!!!!!!!!! |-----------------------------------------------------------------------| | SUBJECT: Motherboard Dip Switch Settings for 1.43 ROM BIOS | | PROVIDED BY: AT&T PC-Hotline | | | | THE FOLLOWING SWITCH SETTINGS ARE FOR ROM 1.43 ONLY!! | | | | MOTHERBOARD SWITCH BANK 0 - LOCATION 7T | 1=ON 0=OFF X=Not Appl | |-----------------------------------------------------------------------| |SW1|SW2|SW3|SW4|SW5|SW6|SW7|SW8| FUNCTION | |-----------------------------------------------------------------------| | 0 | 1 | 1 | 1 | X | X | X | X | 128KB RAM on Motherboard | |-----------------------------------------------------------------------| | 1 | 0 | 1 | 1 | X | X | X | X | 256KB RAM on Motherboard | |-----------------------------------------------------------------------| | 1 | 1 | 0 | 1 | X | X | X | X | 512KB RAM - 256K on Motherbrd | | | | | | | | | | 256K on Expansion | |-----------------------------------------------------------------------| | 0 | 1 | 0 | 1 | X | X | X | X | 640KB RAM - 256K on Motherbrd | | | | | | | | | | 384K on Expansion | |-----------------------------------------------------------------------| | 0 | 1 | 0 | 0 | X | X | X | X | 640KB RAM on MB - 128K Bank 0 | | | | | | | | | | 512K Bank 1 | |-----------------------------------------------------------------------| | 0 | 1 | 1 | 0 | X | X | X | X | 640KB RAM on MB - 512K Bank 0 | | | | | | | | | | 128K Bank 1 | |-----------------------------------------------------------------------| | 1 | 1 | 1 | 0 | X | X | X | X | 512KB RAM on MB - 512K Bank 0 | |-----------------------------------------------------------------------| | X | X | X | 1 | X | X | X | X | ONLY 64KB RAM Chips used | |-----------------------------------------------------------------------| | X | X | X | 0 | X | X | X | X | 256KB RAM Chips used anywhere | |-----------------------------------------------------------------------| -- George Wilkin AT&T Network Systems, Naperville, IL !ihnp4!ihdev!gpw IH 4A-157 work 312-979-4317