Ref: 11420006
Title: Dell 310 386/20 as a PC Server
Date: 8/15/89

Copyright 3Com Corporation, 1991.  All rights reserved.

This article explains how a Dell 310 386 computer with an
EtherLink Plus adapter was made to run as a dedicated server
using 3COMEMM.SYS with the 3+Name, 3+File, 3+Print, and 3+Mail
services (version 1.3.1) installed.  The Dell computer had a
Paradise monochrome monitor.  Its EtherLink Plus adapter was set
to DMA 5, I/O 300, and IRQ 10.

Warning:  Because the Dell 310 386 computer has not been
certified as a PC server, 3Com cannot guarantee the performance
of this server.  The following procedure worked with the computer
as specified above.  Use the procedure at your own risk.

1.  In the CONFIG.SYS file, delete the parameters on the
3COMEMM.SYS line.

2.  In the CONFIG.SYS file, add a SHADOWRAM statement to the
3COMEMM.SYS driver.

The SHADOWRAM statement reclaims some random-access memory
available for 386 systems that use the Chips and Technologies
AT/386 CHIPSet (specifically, the 82C302).

3.  If the DOS memory range of the video adapter is known to be
B800-C000, add a VIDMEM=B800-C000 statement to the
3COMEMM.SYS driver in the CONFIG.SYS file to provide more
high DOS memory.

4.  On the ESDI controller, move the W1 and W2 jumpers located
center right to the number one position.

The Dell 310 can be purchased with hard drives ranging in
size from 40 MB to more than 322 MB.  The 322 MB drive (and
possibly others) conflicts with 3COMEMM mapping and must be
relocated.

The ESDI controller jumpers sit in a three-pin configuration
like the I/O Address jumpers on 3Com's adapter boards.  They
are factory-set to the right; to move them to the number one
position, move the jumpers one position to the left.  There
may be a "1" located near these pins to indicate the number
one position.

5.  From within 3OPT, check the CIOSYS parameters to make sure
the EMS available is not zero.  If it is, look at what is
available and change the zero to the appropriate value.