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MEMO1428.TXT
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1992-08-07
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╔═════════════════════════════════════════════════════════════════════════╗
║ ║
║ Classic Above Board Network Compatibility: A-D ║
║ ║
╚═════════════════════════════════════════════════════════════════════════╝
NETWORK BOARDS - GENERAL NOTES
Network Boards - General Notes
If an Above Board or a Matched Memory Classic supplies expanded memory,
there could be a conflict with the RAM and/or ROM of a network board in
the same system.
Expanded memory requires that there be a contiguous 64K Expanded Memory
Page Frame in reserved memory. The Intel expanded memory manager
device driver (ISAEMM.SYS or EMM.SYS) "seeks" for a contiguous 64K
available space within the address range C000-DFFF at boot time. Often
the RAM or ROM of network cards is not active at boot time so the Intel
expanded memory manager does not "see" it. Consequently, the address
space used by the network board is already being used by the expanded
memory for the page frame. Common symptoms are applications locking
up, garbage in spreadsheet cells, or not being able to logon to the
network.
All current versions of the Intel expanded memory manager have
parameters available that can exclude a certain range of address space
from being used so that the expanded memory page frame will not
conflict with the ROM or RAM of network boards.
3-COM ETHERLINK
Compatible with Above Boards. Memory address is at EC00h. This should
not be a problem with ABs providing expanded memory. In 8088- and 8086-
based computers make sure EMM doesn't start at the E000h address.
See 3Com's EtherStart User's Manual for other address settings.
3-COM ETHERLINK II
Compatible with Above Boards.
Tech Notes: Etherlink II board can use addresses C8000, CC000, D8000,
DC000 when optional EtherStart II PROM is installed on the board.
"Disable" is an option to use when the ES II PROM is not installed.
Addresses are set by jumpers on the board.
ACER ARCNET
*FIELD REPORTS* of compatibility with Above Boards.
The ACER Arcnet 5210-003, has only two address options C000 and D000,
this may not leave enough address space for the expanded memory manager
to load in an 80286-based computer if there is also a EGA or VGA
present.
ALLEN BRADLEY VISTA LAN BOARD
*FIELD REPORT* of compatibility with current Above Boards. Can use
D000 (I/O 2E0) or E000 (3E0), software INT 61 for Vines software
AQUILA ARCNET
*FIELD REPORTS* of compatibility with Above Boards.
Tech Notes: Memory choices: E100, E000, DD00, DC00, D900, D800, D500,
D400, D100, D000, CD00, CC00, C500, C400, C100, C000. Switches on the
memory I/O switch block (RAM & EEPROM). Apparently this board uses 8k
of reserved memory space (the manual was unclear).
AST PC-NET
LIMITED COMPATIBILITY with Above Boards. This network is incompatible
with all L/I/M EMS boards because it uses interrupt 67h, Above Boards
set as EXTENDED memory should have no problem working with this network
adapter. AST has discontinued this network adapter and replaced it
with the RSN Network.
AST RSN NETWORK
We have no compatibility information at all between this network
adapter and Above Boards. We've learned that this is a replacement for
the AST PC-NET, (which was incompatible with L/I/M EMS), but that's all
we know at this time. We have had no customer calls with problems with
this network adapter and Above Boards.
AT&T STARLAN
*FIELD REPORTS* of compatibility with Above Boards.
Tech Notes: Has 7 different memory address locations which can be
selected by jumpering the appropriate pins in the RAM MEMORY jumper
block. Setting choices are 8, 9, A, B, C, D, E. This corresponds to
memory addresses at 80000, 90000, A0000, B0000, C0000, D0000, E0000.
Novell recommends address C0000. If the C0000 block does not work, try
experimenting with other memory addresses. (The Starlan manual does
not suggest using any addresses other than C0000.)
BANYON
Banyon has reported compatibility with ABs
Banyon SW has a PCCONFIG file that has a menu to set Interrupt level,
check hex address space, etc. for several different boards including
two selections for the Token Ring board: "Token Ring" & "Token Ring
with LAN support (TOKREUI)". The "Token Ring" option DOES NOT require
the Token ring drivers in either the CONFIG or AUTOEXEC files.
Changing the RAM address in PCCONFIG is sufficient to eliminate the
EMM/Network conflict.
If the user has the Token Ring drivers in either the CONFIG or AUTOEXEC
files, they need to choose "Token Ring with LAN Support" option, change
the shared RAM address AND append the new address onto the end of the
Token Ring command line (ie. "DXMC0MOD.SYS ,C800" or "TOKREUI ,C800").
CORVUS
Compatible with AB per field reports.
Two customers report that TESTAB will not run correctly when a Corvus
board is installed (TESTAB returns patterns of bad chips). By pulling
the Corvus card they were able to get accurate results with TESTAB, (at
which point they reinstalled the Corvus card). This would seem to be a
conflict between the TESTAB program and the Corvus card, NOT between
the Above Board and the Corvus card.
Field report that Corvus uses D0000 ROM address, but we don't know if
that's movable or if it uses the entire D0000 range.
CORVUS OMNINET
*FIELD REPORTS* of compatibility with Above Boards.
Tech Note:The address of the Remote Reset PROM is not given in the
Novell manual. If conflicts occur with EMM when the Remote Reset PROM
is installed, have user check his Corvus documentation for the PROM
address.
DATA AQUISITION CONTROL
*Customer Reports* of LIMITED compatibility with Above Boards. There
are no reported problems if the Above Board is providing Extended
memory, however in 80286-based computers there won't be enough reserved
memory address space to provide expanded memory.
This proprietary Network Board resides at D000-DFFF, system will also
have Hi-Res PGA Board at C600 and uses 1K. Neither are switchable.
DEC ETHERNET BOARD
Field reports of compatibility with Above Boards.
Tech Note: The DEC Ethernet board uses 64K of memory addresses starting
at either D000 or E0000.
DEC PATHWORKS ETHERWORKS BOARD
*CUSTOMER REPORT* of compatibility with Above Boards.
Tech Notes: The DEC Pathworks Etherworks board defaults to using 64K
of reserved memory at D000. It can be set to a size of 32K and
alternate reserved memory addresses available are C800-CFFF, D000-D7FF,
and E000-E7FF.
DECNET
*FIELD REPORTS* of compatibility with Above Boards.
This board is now shipped with new software and new jumper settings
available from DEC. The board can now be used with the following
reserved memory page frames:
Primary mode - 64K page frame D0000-EFFFF
Secondary mode - 64K page frame E0000-FFFFF
Primary mode - 32K page frame D8000-DFFFF
Secondary mode - 32K page frame C8000-CFFFF
-Old boards used primary address: D0000-DFFFF. AB would not find
enough reserved memory address space to install expanded memory with
both the older Decnet and an EGA or VGA in the system.
DEC DEPCA CARD
*FIELD REPORTS* for revision "E" Depca card and Above Boards.
This board has 64K & 32K mode. Jumpers W7 & W8 control memory size and
address. When the board is set to 32K mode, 32K of conventional memory
are locked out for the board's use.
For the revision "E" board, jumper settings are:
W7 W8 Size Address
--- --- ---- -------
ON ON 64K D000
OFF ON 64K E000
ON OFF 32K D800
OFF OFF 32K C800
* Note: The jumper functions vary with the board revision & network
software version. Refer to DEC documentation.
DEC DEPCA LC BOARD
This board can use a 32k or 64k block of reserved memory. It is
configurable by its switch block that has 12 switches.
The reserved memory location can be set by the following switch
combinations:
SW1 SW2 SW3 SW4 ADDRESS BUFFER SIZE
Off On On On C0000-CFFFFh 64kb
On On On On D0000-DFFFFh 64kb Default
Off Off On On E0000-EFFFFh 64kb**
Off On Off On C8000-CFFFFh 32kb
On On Off On D8000-DFFFFh 32kb
Off Off Off On E8000-EFFFFh 32kb**
**In some computers the E0000 range isn't addressable.
Other switches are:
SW5 is for I/O address selection
On =I/O address 300-30F (default)
Off=I/O address 200-20F
SW6 is for Remote Boot selection
On =disables remote boot (default)
Off=enables remote boot
SW7 is for Remote Boot Timeout
On = 30 second Timeout (default)
Off= 150 second Timeout
SW8-SW12 are for IRQ selection (only one should be On at a time, the
switch that's on will be the IRQ for the board):
SW8 IRQ2
SW9 IRQ3
SW10 IRQ4
SW11 IRQ5 (default)
SW12 IRQ7
DEC DEPCA TURBO/TP
This board can use a 32k or 64k block of reserved memory. It is
configurable by its switch block that has 12 switches.
The reserved memory location can be set by the following switch
combinations:
SW1 SW2 SW3 SW4 ADDRESS BUFFER SIZE
On On On On C0000-CFFFFh 64kb
On Off On On D0000-DFFFFh 64kb Default
Off On On On E0000-EFFFFh 64kb**
On On Off Off C8000-CFFFFh 32kb
On Off Off Off D8000-DFFFFh 32kb
Off On Off Off E8000-EFFFFh 32kb**
**In some AT systems the E0000 range isn't addressable.
Other switches are:
SW5 is for I/O address selection
On =I/O address 300-30F (default)
Off=I/O address 200-20F
SW6 is for Remote Boot selection
On =disables remote boot (default)
Off=enables remote boot
SW7 is for Remote Boot Timeout
On = 30 second Timeout (default)
Off= 150 second Timeout
SW8-SW12 are for IRQ selection (only one should be On at a time, the
switch that's on will be the IRQ for the board):
SW8 IRQ 5 (Default)
SW9 IRQ9
SW10 IRQ10
SW11 IRQ11
SW12 IRQ15
══════════════════════════════════════════════════════════════════════════════
End of file Intel FaxBack # 1428 August 7,1992