DELL COMPUTER CORPORATION
MIDSIZE 486 ISA/VL SYSTEMS
|
Processor |
80486SX/80486SX2/80486DX2/80486DX4 |
|
Processor Speed |
25/33/50(internal)/66(internal)/100(internal)MHz |
|
Chip Set |
VLSI |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
64MB |
|
Maximum Video Memory |
None |
|
Cache |
128KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit VESA local bus slot, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), feature connector, VGA port, riser slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
BATT |
IDE interface |
CN7 |
|
PS/2 mouse port |
CN1 |
Floppy drive interface |
CN8 |
|
Serial port 1 |
CN2 |
IDE interface LED |
CN9 |
|
Serial port 2 |
CN3 |
Front panel connector |
PANEL |
|
Parallel port |
CN4 |
Riser slot |
SL1 |
|
VGA port |
CN5 |
32-bit VESA local bus slot |
SL2 |
|
Feature connector |
CN6 |
Speaker |
SPKR |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
CDR |
Open |
|
|
Password enabled |
EPWD |
Closed |
|
Password disabled |
EPWD |
Open | |
|
|
On board video enabled |
EVGA |
Closed |
|
On board video disabled |
EVGA |
Open | |
|
|
Factory configured - do not alter |
IDEIRQ |
Pins 1 & 2 closed |
|
|
Factory configured - do not alter |
IDERDY |
Open |
|
|
On board speaker enabled |
SPKR |
Pins 1 & 2 closed |
|
On board speaker disabled |
SPKR |
Open | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
4MB |
(1) 1M x 36 |
None |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
|
8MB |
(1) 2M x 36 |
None |
|
12MB |
(1) 1M x 36 |
(1) 2M x 36 |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
|
16MB |
(1) 4M x 36 |
None |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
|
24MB |
(1) 4M x 36 |
(1) 2M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
|
32MB |
(1) 8M x 36 |
None |
|
36MB |
(1) 1M x 36 |
(1) 8M x 36 |
|
40MB |
(1) 8M x 36 |
(1) 2M x 36 |
|
48MB |
(1) 4M x 36 |
(1) 8M x 36 |
|
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
|
Note: Board also accepts x 32 SIMMs. | ||
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
TAG |
U55/U57 |
|
128KB |
(4) 32K x 8 |
Unidentified |
Unidentified |
|
Note: The size of TAG chip and U55/U57 are unidentified. | |||
|
CPU SPEED SELECTION | |
|
Speed |
SPEED |
|
25MHz |
Closed |
|
33MHz |
Open |
|
50iMHz |
Closed |
|
66iMHz |
Open |
|
100iMHz |
Open |