DELL COMPUTER CORPORATION
SYSTEMS 4XX/L(V), 4XX/MX(V) OPTIPLEX
|
Processor |
80486SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
Headland |
|
Max. Onboard DRAM |
64MB |
|
Cache |
128KB (on external cache card) |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external cache card, 32-bit VESA local bus slot, 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 |
Floppy drive interface |
CN8 |
|
Serial port 1 |
CN2 |
IDE interface |
CN9 |
|
Serial port 2 |
CN3 |
External battery |
J3 |
|
Parallel port |
CN4 |
Control panel connector |
J4 |
|
VGA port |
CN5 |
IDE interface LED |
J5 |
|
Video memory upgrade module |
CN6 |
Riser Card |
SL1 |
|
VGA feature connector |
CN7 |
32-bit VESA Local bus/cache slot |
SL2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
VESA riser card disabled |
J1 & J2 |
Closed |
|
VESA riser card enabled |
J1 & J2 |
Open | |
|
|
IDE IRQ enabled |
J6 |
pins 2 & 3 closed |
|
IDE IRQ disabled |
J6 |
pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
J7 |
Open |
|
|
PS/2 mouse (IRQ12) enabled |
J8 |
Closed |
|
PS/2 mouse (IRQ12) disabled |
J8 |
Open | |
|
|
Factory configured - do not alter |
J9 |
Open |
|
|
Factory configured - do not alter |
J10 |
Open |
|
|
Flash BIOS write protect disabled |
J11 |
Closed |
|
Flash BIOS write protect enabled |
J11 |
Open | |
|
|
CPU type select PGA |
J12 |
Closed |
|
CPU type select PQFP |
J12 |
Open | |
|
|
CMOS memory normal operation |
J13 |
Closed |
|
CMOS memory clear |
J13 |
Open | |
|
|
I/O controller address select 26Eh-26Fh |
J14 |
Closed |
|
I/O controller address select 398h-399h |
J14 |
Open | |
|
|
Factory configured - do not alter |
J15 |
Open |
|
|
On board VGA enabled |
J16 |
Closed |
|
On board VGA disabled |
J16 |
Open | |
|
|
Factory configured - do not alter |
J17 |
Open |
|
|
Factory configured - do not alter |
J18 |
Open |
|
|
Factory configured - do not alter |
J20 |
Open |
|
|
Factory configured - do not alter |
J22 |
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 |
|
VESA CPU SPEED CONFIGURATION | ||
|
Speed |
J19 |
J21 |
|
25MHz |
Open |
Closed |
|
33MHz |
Closed |
Open |
|
50iMHz |
Open |
Closed |
|
66iMHz |
Closed |
Open |
|
VIDEO MEMORY CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
CN6 |
|
512KB |
(4) 128K x 8 |
NONE |
NONE |
|
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
NONE |
|
2MB |
(4) 128K x 8 |
(4) 128K x 8 |
Memory module |
|
Note: Bank 0 is factory installed and is not configurable. To enable 2MB video memory, install memory module over Bank 1 in CN6 connectors. | |||