|
@70D1.ADF Intel Above Board MC
ABMC.exe Operating Software Diskette (303989-001, 20 May 1991) ![[P]](/other/img/photo.gif "Screenshot") (zipped image)
Readme for ABMC.exe
Intel Above Board MC Installation Guide (scan by David Beem)
Intel Above Board Support Pages (archived)
Intel Above Board - Installation Problems and Solutions
Above Board MC
Installing Memory
SIMM Compatibility
I/O Daughterboard
Above Board MC
1-8 30-pin SIMM sockets
J1 50-pin header for I/O board
U5 "ABOVE BOARD MC" PAL/GAL
U8,14 Dallas DS1005C-003 Delay Line
|
U11 pads for 8-pin DIP (switch, socket?)
U16 Xilinx XC3342 PQ100C-5014
U17,18,22,26 MT5C6404DJ-15 16Kx4 SRAM
U35 M5M28C64AFP-15 8Kx8 EEPROM
|
Installing Memory
256 KB, 1 MB and 4 MB SIMMs are supported. All installed SIMMs must be of
the same size and 100 ns or faster. 85 ns or faster SIMMs allow for zero wait
state operation.
Restrictions depending on the type of the slot in which the adapter is
installed:
16-bit Slot
- Maximum extended memory: 16 MB
- Maximum expanded memory: 32 MB
- You must add SIMMs two at a time.
- Any extra memory on an Above Board above 16 MB of extended memory can be
set up as expanded memory.
32-bit Slot
- Maximum extended memory: 64 MB
- Maximum expanded memory: 32 MB
- You may add SIMMs two at a time up to 16 MB of total extended memory (all
boards in your system), but your board will operate faster if you install the
SIMMs four at a time.
- Beyond 16 MB of extended memory, SIMMs must be added four at a time, for
all boards in your computer.
- Any Above Board that is supplying extended memory above 16 MB must be
placed in a 32-bit slot.
SIMM Compatibility
Source: SIMMs for the Above Board MC
The following table lists the SIMMs that Intel has verified are compatible
with the Above Board MC. The table lists both the part number on the module
("bottom side" of the module) and the part number on the DRAMs ("topside" of
the module).
You cannot mix different-sized modules (256 KB, 1 MB, 4 MB) on the same
Above Board MC. You must use at least 100 ns RAM. Using 85ns or faster, you can
run the Above Board MC at 0 wait states for optimum performance.
SIMM
Size | Manufacturer | Module Part Number
("Bottom side") | DRAM Part Number
("Topside") |
|---|
| 256 KB | Micron Tech. | MT9259M-xx | MT1259EJ-xx |
| Mitsubishi | H25609J-xx | M5M4256AJ-xx |
| NEC | MC-41256A9B-xx | UPD41256-xx |
| Fujitsu | MB85227-xx MB85240-xx | |
| NMB | NM2800J9-xx | AAA2800J-xx |
| Oki | NM2800J9-xx | AAA2800J-xx |
| Samsung | KMM59256-xx | KM41256-xx |
| Texas Instr | TM4256GU9-xx | TMS4256FML-xx |
| Hitachi | HB561409B-xx | HM51256CP |
| 1 MB | Micron Tech | MT8C9024M-xx | MT4C1024-xx |
| Mitsubishi | MH1M09AOJ-xx MH1M09AOJ-xx | M5M41000AJ-xx M5M41000BJ-xx |
| NMB | MM1M00J9 | AAA1M100J-xx |
| NEC | MC-421000A9B-xx | UPD421000LA-xx |
| Oki * | MSC2312A-xxYS9 | MSM511000AJS-xx |
| Panasonic | MN4A091MOS-xx | MN41C1000SJ-xx |
| Samsung | KMM591000-xx | KM41C1000J-xx |
| Siemens | HYM91000S-xx | HYB511000AJ-xx |
| Texas Instr. | TX024EAD9-xx | TMS4C1024DJ-xx |
| Toshiba | THM91000S-xx THM91000AS-xx THM91000AS-xx | TC511000J-xx TC511000AJ-xx TC51000AJ-xx |
| 4 MB | NEC | MC-424100A9B-xx | UPD424100LA-xx |
| Panasonic | MN4A094MOS-xx | MN41C4000SJ-xx |
| Samsung | KMM594000-xx | KM41C4000J-xx |
| Siemens | HYM94000S-xx | HYB514100-xx |
| Toshiba | THM94000S-xx | TC51400J-xx |
* We have seen some Oki SIMMs that are a millimeter shorter than the SIMM
sockets on the Above Board MC. If you are experiencing problems with these
SIMMs, verify they are seated correctly. If they appear too small to fit
snugly, replace with new SIMMs.
Note: IBM SIMMs are incompatible with Above
Boards.
I/O Daughterboard
Connects to the 50-pin header (J1) and provides 1x serial and 1x parallel
port. Includes a replacement MCA bracket for the adapter. Sold separately.
| ![[P]](abmc.gif "Screenshot"){kind=small}
![[P]](Intel_Above_Board_MC_Photo_Front.jpg "Front"){kind=small}
![[P]](Intel_Above_Board_MC_Photo_Back.jpg "Back"){kind=small}