EXPRESS STATION Motherboard Settings and Configuration
EPSON, INC.
EXPRESS STATION
Processor | 80486SX/80487SX/80486DX |
Processor Speed | 25/33MHz |
Chip Set | Unidentified |
Video Chip Set | Unidentified |
Maximum Onboard Memory | 32MB |
Maximum Video Memory | 1MB |
Cache | 128KB |
BIOS | Unidentified |
Dimensions | 254mm x 218mm |
I/O Options | AUI connector, Twisted Pair connector, floppy drive interface, SCSI interface, parallel port, PS/2 mouse port, serial ports (3), VGA feature connector, VGA port, riser slot |
NPU Options | None |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
Floppy drive interface | CN2 | PS/2 mouse port | J8 |
Serial port 1 | J1 | VGA port | J16 |
Power connector | J2 | Twisted Pair connector | J17 |
Serial port | J4 | AUI connector | J18 |
Serial port | J4A | VGA feature connector | J20 |
Parallel port | J6A | Riser slot | SL1 |
SCSI interface | J6B | ||
USER CONFIGURABLE SETTINGS | |||
Function | Label | Position | |
? | Floppy drive write protect disabled | J3 | Pins 4 & 6 closed |
Floppy drive write protect enabled | J3 | Pins 2 & 4 closed | |
? | Factory configured - do not alter | J10 | Unidentified |
? | On board video enabled | J19 | Pins 2 & 4 closed |
On board video disabled | J19 | Pins 4 & 6 closed | |
? | Password normal operation | J21 | Pins 4 & 6 closed |
Password clear | J21 | Pins 2 & 4 closed | |
? | CMOS memory normal operation | J21 | Pins 11 & 13 closed |
CMOS memory clear | J21 | Pins 9 & 11 closed | |
? | Flash BIOS normal operation | J21 | Pins 10 & 12 closed |
Flash BIOS recovery mode | J21 | Pins 12 & 14 closed | |
DRAM CONFIGURATION | ||||
Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
1MB | (1) 256K x 36 | None | None | None |
2MB | (1) 512K x 36 | None | None | None |
2MB | (1) 256K x 36 | (1) 256K x 36 | None | None |
4MB | (1) 1M x 36 | None | None | None |
4MB | (1) 512K x 36 | (1) 512K x 36 | None | None |
4MB | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 | (1) 256K x 36 |
8MB | (1) 2M x 36 | None | None | None |
8MB | (1) 1M x 36 | (1) 1M x 36 | None | None |
8MB | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 | (1) 512K x 36 |
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 |
32MB | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 | (1) 2M x 36 |
CACHE CONFIGURATION | |
Size | CN3 |
None | Not installed |
128KB | Intel 485 TurboCache module installed |
VIDEO MEMORY CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
512KB | 512KB | None |
1MB | 512KB | (4) 256K x 4 |
Note: Bank 0 is factory installed and is not configurable. The location is unidentified. | ||
VIDEO MEMORY JUMPER CONFIGURATION | |
Size | J19 |
512KB | Pins 1 & 3 closed |
1MB | Pins 3 & 5 closed |
FLASH BIOS CONFIGURATION | |||
Setting | J5 | J21 | |
| » | Write protect disabled | Pins 2 & 4 closed | Pins 1 & 3 closed |
Write protect enabled | Pins 4 & 6 closed | Pins 3 & 5 closed | |
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