COMPAQ COMPUTER CORPORATION
DESKPRO XE 486
|
Processor |
80486SX/80487SX/80486DX/ODP486SX/80486DX2 |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
Compaq |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/256KB (on external cache card) |
|
BIOS |
AMI |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
External cache card, floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial port, VGA port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
PS/2 mouse port |
CN1 |
Floppy drive interface |
CN7 |
|
Parallel port |
CN2 |
Speaker |
J1 |
|
Serial port |
CN3 |
Power LED & keylock |
J2 |
|
VGA port |
CN4 |
External battery |
J3 |
|
Video memory upgrade |
CN5 |
Riser card |
SL1 |
|
IDE interface |
CN6 |
External cache card |
SL2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper/Switch |
Position | |
|
» |
Battery type select internal |
J4 |
pins 1 & 2 closed |
|
Battery type select external |
J4 |
pins 2 & 3 closed | |
|
» |
On board video enabled |
SW502/1 |
Off |
|
On board video disabled |
SW502/1 |
On | |
|
» |
Setup write protect disabled |
SW502/2 |
Off |
|
Setup write protect enabled |
SW502/2 |
On | |
|
» |
Floppy drive select read/write |
SW502/3 |
Off |
|
» |
Floppy drive select read only |
SW502/3 |
On |
|
» |
Factory configured - do not alter |
SW502/4 |
Off |
|
» |
CMOS memory normal operation |
SW502/5 |
Off |
|
CMOS memory clear |
SW502/5 |
On | |
|
» |
Flash BIOS write protect enabled |
SW502/6 |
Off |
|
Flash BIOS write protect disabled |
SW502/6 |
On | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(1) 256K x 36 |
NONE |
NONE |
NONE |
|
2MB |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
NONE |
|
2MB |
(1) 512K x 36 |
NONE |
NONE |
NONE |
|
3MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
NONE |
|
3MB |
(1) 256K x 36 |
(1) 512K x 36 |
NONE |
NONE |
|
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
(1) 256K x 36 |
|
4MB |
(1) 512K x 36 |
(1) 512K x 36 |
NONE |
NONE |
|
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
|
5MB |
(1) 256K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
NONE |
|
5MB |
(1) 256K x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
6MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
NONE |
|
6MB |
(1) 512K x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
7MB |
(1) 256K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
|
8MB |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
(1) 512K x 36 |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
|
8MB |
(1) 2M x 36 |
NONE |
NONE |
NONE |
|
9MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
9MB |
(1) 256K x 36 |
(1) 2M x 36 |
NONE |
NONE |
|
10MB |
(1) 512K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
10MB |
(1) 512K x 36 |
(1) 2M x 36 |
NONE |
NONE |
|
12MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
|
12MB |
(1) 1M x 36 |
(1) 2M x 36 |
NONE |
NONE |
|
13MB |
(1) 256K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
14MB |
(1) 512K x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
NONE |
|
17MB |
(1) 256K x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
|
18MB |
(1) 512K x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
|
DRAM CONFIGURATION (CON’T) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
20MB |
(1) 1M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
|
24MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
|
25MB |
(1) 256K x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
26MB |
(1) 512K x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
28MB |
(1) 1M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
|
CPU TYPE CONFIGURATION | ||||
|
Type |
SW500/1 |
SW500/2 |
SW500/3 |
SW500/4 |
|
80486SX-33 |
Off |
Off |
Off |
Off |
|
80487SX-25 |
Off |
On |
On |
On |
|
ODP486SX-25/50 |
Off |
On |
On |
On |
|
ODP486SX-33/66 |
Off |
On |
On |
Off |
|
80486DX-33 |
On |
Off |
On |
Off |
|
80486DX2-50 |
On |
Off |
On |
On |
|
80486DX2-66 |
On |
Off |
On |
Off |