IBM CORPORATION
APTIVA 2144 TYPE C-1, APTIVA 2168 TYPE C-1
Device Type | Mainboard |
Processor | 80486SX/80486SX2/80487SX/ODP486/80486DX/80486DX2 |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | Unidentified |
Video Chip Set | Unidentified |
Maximum Onboard Memory | 64MB |
Maximum Video Memory | 1MB |
Cache | None |
BIOS | Unidentified |
Dimensions | 330mm x 218mm |
I/O Options | Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), riser slot, VGA feature connector |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
PS/2 mouse port | J2 | VGA feature connector | J14 |
Serial port 1 | J3 | IDE interface LED | J26 |
Serial port 2 | J4 | Speaker | J27 |
Parallel port | J5 | Soft off power supply | J29 |
VGA port | J6 | Soft off power supply | J30 |
Floppy drive interface | J7 | Chassis fan power | J38 |
IDE interface 1 | J9 | Wake on modem connector | JP5 |
IDE interface 2 | J10 | Riser slot | SL1 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | On board video disabled | J15 | Pins 1 & 2 closed |
On board video enabled | J15 | Pins 2 & 3 closed | |
Parity enabled | J50 | Pins 1 & 2 closed | |
Parity disabled | J50 | Pins 2 & 3 closed | |
» | Password normal operation | JP14 | Pins 1 & 2 closed |
Password clear | JP14 | Pins 2 & 3 closed | |
SIMM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (1) 256K x 36 | None |
2MB | (1) 512K x 36 | None |
2MB | (1) 256K x 36 | (1) 256K x 36 |
3MB | (1) 512K x 36 | (1) 256K x 36 |
4MB | (1) 1M x 36 | None |
4MB | (1) 512K x 36 | (1) 512K x 36 |
5MB | (1) 1M x 36 | (1) 256K x 36 |
6MB | (1) 512K x 36 | (1) 1M x 36 |
8MB | (1) 2M x 36 | None |
8MB | (1) 1M x 36 | (1) 1M x 36 |
9MB | (1) 2M x 36 | (1) 256K x 36 |
10MB | (1) 2M x 36 | (1) 512K x 36 |
12MB | (1) 2M x 36 | (1) 1M x 36 |
16MB | (1) 4M x 36 | None |
16MB | (1) 2M x 36 | (1) 2M x 36 |
17MB | (1) 256K x 36 | (1) 4M x 36 |
SIMM CONFIGURATION (CON’T) | ||
Size | Bank 0 | Bank 1 |
18MB | (1) 512K x 36 | (1) 4M x 36 |
20MB | (1) 4M x 36 | (1) 1M x 36 |
24MB | (1) 4M x 36 | (1) 2M x 36 |
32MB | (1) 8M x 36 | None |
32MB | (1) 4M x 36 | (1) 4M x 36 |
33MB | (1) 8M x 36 | (1) 256K x 36 |
34MB | (1) 8M x 36 | (1) 512K x 36 |
36MB | (1) 8M x 36 | (1) 1M x 36 |
40MB | (1) 8M x 36 | (1) 2M x 36 |
48MB | (1) 8M x 36 | (1) 4M x 36 |
64MB | (1) 8M x 36 | (1) 8M x 36 |
VIDEO MEMORY CONFIGURATION |
Note: Board is factory installed with either 512KB or 1MB video memory. |
CPU SPEED SELECTION | |
Speed | J37 |
25MHz | Closed |
33MHz | Open |
50iMHz | Closed |
66iMHz | Open |
CPU TYPE SELECTION | |||
Type | J24 | J25 | J31 |
80486SX | Pins 2 & 3 closed | Pins 2 & 3 closed | Pins 1 & 2 closed |
80486SX | Pins 2 & 3 closed | Pins 1 & 2 closed | Pins 2 & 3 closed |
80487SX | Pins 1 & 2 closed | Pins 1 & 2 closed | Pins 2 & 3 closed |
ODP486 | Pins 1 & 2 closed | Pins 1 & 2 closed | Pins 2 & 3 closed |
80486DX | Pins 2 & 3 closed | Pins 1 & 2 closed | Pins 2 & 3 closed |
80486DX2 | Pins 2 & 3 closed | Pins 1 & 2 closed | Pins 2 & 3 closed |
Note: The settings for the 80486SX2 are unidentified. | |||