DELL COMPUTER CORPORATION
OMNIPLEX 4XX/ME
Processor |
80486SX/80486DX/80486DX2/80486DX4 |
Processor Speed |
25/33/50(internal)/66(internal)/75(internal)/100(internal)MHz |
Chip Set |
Intel |
Video Chip Set |
ATI |
Maximum Onboard Memory |
128MB |
Maximum Video Memory |
1MB |
Cache |
256KB |
BIOS |
Unidentified |
Dimensions |
330mm x 218mm |
I/O Options |
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), feature connector, VGA port, riser slot, cache slot |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Feature connector |
CN1 |
Thermal monitor board connector |
CN9 |
PS/2 mouse port |
CN2 |
IDE interface LED |
J1 |
Serial port 1 |
CN3 |
Chassis fan power |
J2 |
Serial port 2 |
CN4 |
Speaker |
J3 |
Parallel port |
CN5 |
External battery |
J4 |
VGA port |
CN6 |
Audio connector |
J5 |
IDE interface |
CN7 |
Riser slot |
SL1 |
Floppy drive interface |
CN8 |
Cache slot |
SL2 |
USER CONFIGURABLE SETTINGS | |||
Function |
Label |
Position | |
» |
Factory configured - do not alter |
BOOT |
Open |
» |
Factory configured - do not alter |
CRD |
Open |
» |
EISA configuration normal operation |
EISA |
Open |
EISA configuration clear |
EISA |
Closed | |
» |
Factory configured - do not alter |
JC1 |
Unidentified |
» |
Factory configured - do not alter |
JC2 |
Unidentified |
» |
Factory configured - do not alter |
JC3 |
Unidentified |
» |
Factory configured - do not alter |
JC4 |
Unidentified |
» |
Factory configured - do not alter |
JC5 |
Unidentified |
» |
Factory configured - do not alter |
JP2 |
Unidentified |
» |
Factory configured - do not alter |
JP4 |
Unidentified |
» |
Factory configured - do not alter |
JP5 |
Unidentified |
» |
Integrated SCSI host adapter terminated |
SCSI |
Closed |
Integrated SCSI host adapter not terminated |
SCSI |
Open | |
» |
On board video enabled |
SW1/1 |
On |
On board video disabled |
SW1/1 |
Off | |
» |
Password enabled |
SW1/2 |
On |
Password disabled |
SW1/2 |
Off | |
» |
I/O controller address select 26Eh - 26Fh |
SW1/3 |
On |
I/O controller address select 398h - 399h |
SW1/3 |
Off | |
» |
Flash BIOS update at boot |
SW1/4 |
On |
flash BIOS not updated at boot |
SW1/4 |
Off |
DRAM CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
4MB |
(2) 512K x 36 |
None |
8MB |
(2) 1M x 36 |
None |
8MB |
(2) 512K x 36 |
(2) 512K x 36 |
12MB |
(2) 1M x 36 |
(2) 512K x 36 |
16MB |
(2) 2M x 36 |
None |
16MB |
(2) 1M x 36 |
(2) 1M x 36 |
20MB |
(2) 2M x 36 |
(2) 512K x 36 |
24MB |
(2) 2M x 36 |
(2) 1M x 36 |
32MB |
(2) 4M x 36 |
None |
32MB |
(2) 2M x 36 |
(2) 2M x 36 |
36MB |
(2) 4M x 36 |
(2) 512K x 36 |
40MB |
(2) 4M x 36 |
(2) 1M x 36 |
48MB |
(2) 4M x 36 |
(2) 2M x 36 |
64MB |
(2) 8M x 36 |
None |
64MB |
(2) 4M x 36 |
(2) 4M x 36 |
68MB |
(2) 8M x 36 |
(2) 512K x 36 |
72MB |
(2) 8M x 36 |
(2) 1M x 36 |
80MB |
(2) 8M x 36 |
(2) 2M x 36 |
96MB |
(2) 8M x 36 |
(2) 4M x 36 |
128MB |
(2) 8M x 36 |
(2) 8M x 36 |
Note: Board also accepts x 32 SIMMs. |
CACHE CONFIGURATION | |
Size |
SL1 |
256KB |
256KB module installed |
VIDEO MEMORY CONFIGURATION | ||
Size |
Bank 0 |
Bank 1 |
512KB |
512KB |
None |
1MB |
512KB |
(4) 256K x 4 |
Note: Bank 0 is factory installed and is not configurable. |
CPU SPEED SELECTION | ||
Speed |
JP1 |
JP3 |
25MHz |
Closed |
Open |
33MHz |
Open |
Closed |
50iMHz |
Closed |
Open |
66iMHz |
Open |
Closed |
75iMHz |
Closed |
Open |
100iMHz |
Open |
Closed |