SYSTEM 220 Motherboard Settings and Configuration
DELL COMPUTER CORPORATION
SYSTEM 220
Processor | 80286 |
Processor Speed | 20MHz |
Chip Set | VLSI |
Max. Onboard DRAM | 8MB |
Cache | None |
BIOS | AMI |
Dimensions | 362mm x 182mm |
I/O Options | 16-bit riser card slot, floppy drive interface, IDE interface parallel port, serial port (2), VGA feature connector, VGA port |
NPU Options | 80287-8MHz |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
VGA port | CN1 | IDE interface | CN6 |
Parallel port | CN2 | VGA feature | CN7 |
Serial port 2 | CN3 | Front panel switches & LEDs | FPSL |
Serial port 1 | CN4 | 16-bit riser card | S1 |
Floppy drive interface | CN5 | ||
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
| » | Factory configured - do not alter | J1 | unknown |
| » | Factory configured - do not alter | J2 | unknown |
| » | Factory configured - do not alter | J3 | unknown |
| » | Factory configured - do not alter | J4 | unknown |
| » | Monitor type select color | W1 | closed |
Monitor type select monochrome | W1 | open | |
| » | Serial port 2 (CN3) enabled | W4/pins 1 & 2 | closed |
Serial port 2 (CN3) disabled | W4/pins 1 & 2 | open | |
| » | Serial port 1 (CN4) enabled | W4/pins 3 & 4 | closed |
Serial port 1 (CN4) disabled | W4/pins 3 & 4 | open | |
| » | Parallel port (CN2) select LPT1 | W4/pins 5 & 6 W4/pins 7 & 8 | open closed |
Parallel port (CN2) select LPT2 | W4/pins 5 & 6 W4/pins 7 & 8 | closed open | |
Parallel port disabled | W4/pins 5 & 6 W4/pins 7 & 8 | open open | |
| » | IDE interface (CN6) enabled | W5 | closed |
IDE interface (CN6) disabled | W5 | open | |
| » | Floppy drive interface (CN5) enabled | W6 | closed |
Floppy drive interface (CN5) disabled | W6 | open | |
| » | IDE interleave select 1:1 | W7 | pins 2 & 3 closed |
IDE interleave select 3:1 | W7 | pins 1 & 2 closed | |
| » | VGA port enabled | W11 | open |
VGA port disabled | W11 | pins 1 & 2 closed | |
| » | Factory configured - do not alter | W15 W16 | pins 1 & 2 closed open |
Note:The location of Jumpers W5 and W6 are unverified. | |||
BASE MEMORY CONFIGURATION | ||||
Select | W10 | W12 | W13 | |
| » | 640KB | open | pins 1 & 2 closed | pins 2 & 3 closed |
256KB | pins 1 & 2 closed | pins 2 & 3 closed | pins 1 & 2 closed | |
DRAM CONFIGURATION | ||
Size | Bank 0 | Bank 1 |
1MB | (4) 256K x 9 | NONE |
2MB | (4) 256K x 9 | (4) 256K x 9 |
4MB | (4) 1M x 9 | NONE |
5MB | (4) 256K x 9 | (4) 1M x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
My Books
