DELL COMPUTER CORPORATION
4XX/ME, 4XXS/ME
|
Processor |
80486SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
Intel |
|
Max. Onboard DRAM |
64MB |
|
Cache |
128KB (on external cache card) |
|
BIOS |
Phoenix |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA feature connector, VGA port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
PS/2 mouse port |
CN1 |
IDE interface |
CN8 |
|
Serial port 1 |
CN2 |
IDE interface LED |
J1 |
|
Serial port 2 |
CN3 |
Chassis fan power |
J2 |
|
Parallel port |
CN4 |
External battery |
J3 |
|
VGA port |
CN5 |
Front panel connector |
J4 |
|
VGA feature connector |
CN6 |
External cache card slot |
SL1 |
|
Floppy drive interface |
CN7 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
» |
External cache card not installed (486/M mainboard only) |
JP1 |
Open |
|
External cache card installed (486/M mainboard only) |
JP1 |
Closed | |
|
» |
Password enabled |
JP2 |
Closed |
|
Password disabled |
JP2 |
Open | |
|
» |
Factory configured - do not alter |
JP3 |
Open |
|
» |
BIOS & EISA upgrade from diskette enabled |
JP4 |
Closed |
|
BIOS & EISA upgrade from diskette disabled |
JP4 |
Open | |
|
» |
On board VGA enabled |
JP5 |
Closed |
|
On board VGA disabled |
JP5 |
Open | |
|
» |
EISA configuration retained at boot |
JP7 |
Open |
|
EISA configuration cleared at boot |
JP7 |
Closed | |
|
» |
Factory configured - do not alter |
JP11 |
Open |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 4M x 36 |
NONE |
NONE |
NONE |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
24MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
28MB |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
NONE |
|
36MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
NONE |
|
40MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
|
52MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
|
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
|
CPU SPEED CONFIGURATION | |
|
Speed |
JP6 |
|
25MHz |
Closed |
|
33MHz |
Open |
|
50iMHz |
Closed |
|
66iMHz |
Open |
|
VIDEO MEMORY CONFIGURATION | ||
|
Wait states |
Bank 0 |
Bank 1 |
|
512KB |
(4) 256K x 4 |
NONE |
|
1MB |
(4) 256K x 4 |
(4) 256K x 4 |
|
Note: Bank 0 is factory installed and is not configurable. | ||