[comp.sys.att] AT&T Expansion Board Questions

mjw@aluxp.UUCP (03/27/87)

	I have a few questions about using the AT&T Display
Enhancement Board (DEB) and the AT&T Extended Memory Board.  Please
send email if you have the answers and I'll summarize to the net.

	(1)  Does the device driver (DEDRIVER) for the DEB contain the
	     capabilities of ANSI.SYS (or NANSI.SYS or FCONSOLE.DEV)?

	(2)  If it does not contain these capabilities, does using
	     ANSI.SYS and DEDRIVER.DEV together result in any
	     conflicts?

	(3)  Assuming the drivers are compatible, what order should
	     they appear in CONFIG.SYS?

	(4)  Recently I added enough NEC 41256-12 DRAMs to bring my
	     Extended memory board up to 2MB.  AEMM.SYS shows parity
	     errors during initialization and immediately locks up
	     the system.  Obviously a portion of the memory is not
	     functional.  Is there a quick and intelligent way of
	     determining where the 'bad' chips are?  Trial and error
	     just isn't acceptable!  Note: The hardware is a 256K
	     motherboard, AT&T PC6300 with a DEB installed.  Also,
	     without using AEMM.SYS in CONFIG.SYS, the system sees
	     an additional 384K on the extended memory board and
	     reports no errors during start-up diagnostics.

	(5)  Could someone recommend a procedure that will permit the
	     following configuration (using a 256K motherboard and one
	     AT&T Extended Memory Board):

	     640K of non-paged memory for MS-DOS, a 360K superdrive
	     ramdisk (drive D:), a 64K superbuffer, and the rest of
	     the 2MB board as a large ramdisk (drive E:).

	     Please give SW1 and SW2 (on the memory board) settings
	     as well as the entries for CONFIG.SYS and AUTOEXEC.BAT.

	(6)  Why did Olivetti place only two dual-socket slots on
	     the 6300?

--
Michael Weber					...!ihnp4!aluxp!mjw
AT&T Bell Laboratories
Allentown, Pennsylvania				(215) 770-2732

	FREEDOM...  The condition in which all sentient beings have
	a moral and social obligation to control their own destinies
	to the best of their abilities without hindering others from
	accomplishing the same.

gnome@oliveb.UUCP (03/27/87)

in article <877@aluxp.UUCP>, mjw@aluxp.UUCP (Michael Weber) says:
> 	(6)  Why did Olivetti place only two dual-socket slots on
> 	     the 6300?

Olivetti backplanes are/were available with all the expansion
slots 16-bit wide.  The two slot version was a cost-cut version
for ATT (ie: It was ATT's decision, from what I remember).

> Michael Weber					...!ihnp4!aluxp!mjw