NCR CORPORATION
MODEL 3230
Processor | 80486SX/486Overdrive/80487SX/80486DX/486Overdrive/80486DX2 |
Processor Speed | 25/33/50(internal)/66(internal)MHz |
Chip Set | Unidentified |
Video Chip Set | Unidentified |
Maximum Onboard Memory | 32MB |
Maximum Video Memory | 1MB |
Cache | Unidentified |
BIOS | Unidentified |
Dimensions | 254mm x 218mm |
I/O Options | Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Serial port 2 | J2 | IDE interface | J11 |
Serial port 1 | J3 | Front panel LEDs | J15 |
Parallel port | J4 | Cache memory connector | P1 |
VGA port | J5 | Floppy drive interface | P9 |
PS/2 mouse port | J6 | Riser slot | SL1 |
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
Jumper not used | J16 | N/A | |
Password normal operation | RK1 | Open | |
Password clear | RK1 | Closed | |
On board video enabled | SW1/1 | On | |
On board video disabled | SW1/1 | Off | |
Monitor type select color | SW1/2 | On | |
Monitor type select monochrome | SW1/2 | Off |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
4MB | (4) 1M x 9 | None |
8MB | (4) 1M x 9 | (4) 1M x 9 |
16MB | (4) 4M x 9 | None |
20MB | (4) 4M x 9 | (4) 1M x 9 |
32MB | (4) 4M x 9 | (4) 4M x 9 |
VIDEO MEMORY CONFIGURATION |
Note: Board accepts 512KB/1MB video memory. The chip sizes and bank location are unidentified. |
CPU TYPE SELECTION | ||
Type | SW1/3 | SW1/4 |
80486SX | On | Off |
486SX Overdrive | Off | Off |
80487SX | Off | Off |
80486DX | Off | On |
486DX Overdrive | On | Off |
80486DX2 | Off | On |