IBM CORPORATION
APTIVA 2144/2168 C-2
Processor | 80486SX/80486SX2/80487SX/486 Overdrive/80486DX/80486DX2 |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | Unidentified |
Video Chip Set | None |
Maximum Onboard Memory | 128MB |
Maximum Video Memory | None |
Cache | 128/256KB |
BIOS | IBM |
Dimensions | 330mm x 218mm |
I/O Options | 32-bit VESA/PCI local bus slot, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2),VESA feature connector, VGA port, riser slot |
NPU Options | None |

CONNECTIONS | |||
Purpose | Location | Purpose | Location |
PS/2 mouse port | J2 | VESA feature connector | J14 |
Serial port 1 | J3 | LED connector | J26 |
Serial port 2 | J4 | Speaker | J27 |
Parallel port | J5 | On/off switch connector | J29 |
VGA port | J6 | On/off switch power supply connector | J30 |
Floppy drive interface | J7 | Riser slot | SL1 |
IDE interface 1 | J9 | 32-bit VESA/PCI local bus slot | SL2 |
IDE interface 2 | J10 | ||
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
» | On board video enabled | J15 | Pins 1 & 2 closed |
On board video disabled | J15 | Pins 2 & 3 closed | |
» | Modem answers on ring | JP5 | Pins 2 & 3 closed |
Modem does not answer on ring | JP5 | Pins 1 & 2 closed | |
Factory configured - do not alter | JP10 | Unidentified | |
» | CMOS memory normal operation | JP14 | Pins 1 & 2 closed |
CMOS memory clear | JP14 | Pins 2 & 3 closed | |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
2MB | (1) 512K x 36 | None | None | None |
4MB | (1) 1M x 36 | None | None | None |
6MB | (1) 512K x 36 | (1) 1M x 36 | None | None |
8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
8MB | (1) 2M x 36 | None | None | None |
10MB | (1) 512K x 36 | (1) 512K x 36 | (1) 1M x 36 | None |
12MB | (1) 512K x 36 | (1) 512K x 36 | (1) 2M x 36 | None |
12MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | None |
12MB | (1) 1M x 36 | (1) 2M x 36 | None | None |
16MB | (1) 4M x 36 | None | None | None |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 2M x 36 | None |
16MB | (1) 2M x 36 | (1) 2M x 36 | None | None |
16MB | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 | (1) 1M x 36 |
20MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x 36 | None |
20MB | (1) 1M x 36 | (1) 4M x 36 | None | None |
24MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | None |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x 36 |
24MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | None |
28MB | (1) 1M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
28MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | (1) 1M x 36 |
DRAM CONFIGURATION (CON’T) | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
32MB | (1) 4M x 36 | None | None | None |
32MB | (1) 8M x 36 | (1) 2M x 36 | None | None |
32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 4M x 36 | None |
32MB | (1) 2M x 36 | (1) 4M x 36 | (1) 2M x 36 | None |
36MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | None |
40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x 36 | None |
40MB | (1) 1M x 36 | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 |
48MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | None |
48MB | (1) 2M x 36 | (1) 2M x 36 | (1) 8M x 36 | None |
48MB | (1) 2M x 36 | (1) 2M x 36 | (1) 4M x 36 | (1) 4M x 36 |
52MB | (1) 1M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
64MB | (1) 8M x 36 | (1) 8M x 36 | None | None |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x 36 | None |
64MB | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 | (1) 4M x 36 |
68MB | (1) 1M x 36 | (1) 8M x 36 | (1) 4M x 36 | (1) 4M x 36 |
72MB | (1) 1M x 36 | (1) 1M x 36 | (1) 8M x 36 | (1) 8M x 36 |
80MB | (1) 2M x 36 | (1) 2M x 36 | (1) 8M x 36 | (1) 8M x 36 |
84MB | (1) 1M x 36 | (1) 8M x 36 | (1) 8M x 36 | (1) 4M x 36 |
96MB | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 | None |
96MB | (1) 4M x 36 | (1) 4M x 36 | (1) 8M x 36 | (1) 8M x 36 |
100MB | (1) 1M x 36 | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 |
128MB | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 | (1) 8M x 36 |
CACHE CONFIGURATION | |||
Size | Bank 0 | Bank 1 | TAG |
128KB | (4) 32K x 8 | None | (1) 8K x 8 |
256KB | (4) 32K x 8 | (4) 32K x 8 | (1) 32K x 8 |
CACHE JUMPER CONFIGURATION | |||
Size | J16 | J17 | J38 |
128KB | Pins 2 & 3 closed | Open | Open |
256KB | Pins 1 & 2 closed | Closed | Open |
CPU SPEED SELECTION | |||
Speed | J35 | J36 | J37 |
25MHz | Open | Closed | Closed |
33MHz | Open | Closed | Open |
50iMHz | Open | Closed | Closed |
50MHz | Open | Open | Open |
66iMHz | Open | Closed | Open |
CPU TYPE SELECTION | ||
Type | J23 | J24 |
80486SX | Pins 1 & 2 closed | Open |
80486SX2 | Pins 2 & 3 closed | Open |
80487SX | Pins 2 & 3 closed | Closed |
486 Overdrive | Pins 2 & 3 closed | Closed |
80486DX | Pins 2 & 3 closed | Open |
80486DX2 | Pins 2 & 3 closed | Open |
LOCAL BUS SELECTION | ||||
Setting | JP3 | JP4 | JP7 | JP13 |
VESA local bus | Pins 1 & 2 closed | Pins 1 & 2 closed | Unidentified | Unidentified |
PCI local bus | Pins 2 & 3 closed | Pins 2 & 3 closed | Unidentified | Unidentified |