System 220e Motherboard Settings and Configuration
DELL COMPUTER CORPORATION
System 220e
Processor | 80286 |
Processor Speed | 20MHz |
Chip Set | VLSI |
Max. Onboard DRAM | 8MB |
Cache | None |
BIOS | Phoenix |
Dimensions | 362mm x 182mm |
I/O Options | Floppy drive interface, IDE interface, parallel port, riser card slot, serial ports (2), VGA port |
NPU Options | 80287 |
CONNECTIONS | |||
Purpose | Location | Purpose | Location |
VGA port | CN1 | Floppy drive interface | FDD |
Parallel port | CN2 | IDE interface | IDE |
Serial port 2 | CN3 | VGA pass-through | JFEAT |
Serial port 1 | CN4 | Power LED & keylock | P6 |
16-bit riser card | EXP | Reset switch | W12 |
USER CONFIGURABLE SETTINGS | |||
Function | Jumper | Position | |
| » | Monitor type select color | W1 | Closed |
Monitor type select monochrome | W1 | Open | |
| » | Factory test disabled | W2 | Open |
Factory test enabled | W2 | Closed | |
| » | Factory configured - do not alter | W3 | Open |
| » | Factory configured - do not alter | W4 | Open |
| » | Serial port 2 enabled (IRQ4) | W5 pins 1 & 2 | Closed |
Serial port 2 disabled (IRQ4 not used) | W5 pins 1 & 2 | Open | |
| » | Serial port 1 enabled (IRQ3) | W5 pins 3 & 4 | Closed |
Serial port 1 disabled (IRQ3 not used) | W5 pins 3 & 4 | Open | |
| » | Factory configured - do not alter (IRQ5 not used) | W5 pins 5 & 6 | Open |
| » | Parallel port enabled (IRQ7) | W5 pins 7 & 8 | Closed |
Parallel port disabled (IRQ7 not used) | W5 pins 7 & 8 | Open | |
| » | IDE interface enabled | W6 | Closed |
IDE interface disabled | W6 | Open | |
| » | Floppy interface enabled | W7 | Closed |
Floppy interface disabled | W7 | Open | |
| » | Factory configured - do not alter | W8 | pins 2 & 3 closed |
| » | IDE drive installed select 1:1 interleave "Type B" | W9 | pins 1 & 2 closed |
IDE drive installed select 3:1 interleave "Type A" | W9 | pins 2 & 3 closed | |
| » | VGA port enabled | W10 | pins 1 & 2 closed |
VGA port disabled | W10 | pins 2 & 3 closed | |
| » | Tri-state diagnostic signal indicates true drive state | W11 | pins 2 & 3 closed |
Tri-state diagnostic signal forced to "passed diagnostic" | W11 | pins 1 & 2 closed | |
| » | Factory configured - do not alter | W13 | pins 1 & 2 closed |
| » | BIOS type select 27256 | W14 | pins 2 & 3 closed |
BIOS type select 27512 | W14 | 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) 1M x 9 | (4) 256K x 9 |
8MB | (4) 1M x 9 | (4) 1M x 9 |
DRAM JUMPER CONFIGURATION | ||
Type | W15 | W16 |
Memory recognized by system select total amount installed | pins 1 & 2 closed | pins 2 & 3 closed |
Memory recognized by system select only 256KB | pins 2 & 3 closed | pins 1 & 2 closed |
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