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 |