COMPAQ COMPUTER CORPORATION
DESKPRO EN (SMALL FORM FACTOR/NET PC)
| Device Type | Mainboard |
| Processor | Pentium II |
| Processor Speed | 233/266/300/333/350/400/450/500MHz |
| Chip Set | Unidentified |
| Video Chip Set | ATI |
| Maximum Onboard Memory | 256MB (SDRAM supported) |
| Maximum Video Memory | 8MB |
| Cache | 256/512KB (located on Pentium II CPU) |
| BIOS | Unidentified |
| Dimensions | 330mm x 218mm |
| I/O Options | Ethernet 10BaseT connector, floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot, USB connectors (2), ATX power connector, line in, microphone in, audio in – CD-ROM |
CONNECTIONS |
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| Purpose | Location |
Purpose | Location |
| ATX power connector | ATX |
5v main LED | CR18 |
| VGA port | CN1 |
Power cable solenoid/LED | P5 |
| PS/2 mouse port | CN2 |
Speaker | P6 |
| Serial port 2 | CN3 |
Audio in – CD-ROM | P7 |
| Ethernet 10BaseT connector | CN4 |
Wake on LAN connector | P9 |
| Parallel port | CN5 |
Floppy drive interface | P10 |
| USB connector 1 | CN6 |
IDE interface 1 | P20 |
| USB connector 2 | CN7 |
IDE interface 2 | P21 |
| Microphone in | CN8 |
Video upgrade module | P25 |
| Line out | CN9 |
SCSI interface LED | P29 |
| Serial port 1 | CN10 |
CD-ROM connector | P32 |
| 5v aux LED | CR15 |
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USER CONFIGURABLE SETTINGS |
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Function |
Label |
Position |
|
» |
CMOS memory normal operation | E50 |
Pins 1 & 2 closed |
| CMOS memory clear | E50 |
Pins 2 & 3 closed |
|
» |
Password enabled | SW1/1 |
Off |
| Password disabled | SW1/1 |
On |
|
| Power on switch enabled | SW1/6 |
Off |
|
| Power on switch disabled | SW1/6 |
On |
|
DIMM CONFIGURATION |
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Size |
Bank 0 |
Bank 1 |
8MB |
(1) 1M x 64 |
None |
16MB |
(1) 2M x 64 |
None |
16MB |
(1) 1M x 64 |
(1) 1M x 64 |
24MB |
(1) 2M x 64 |
(1) 1M x 64 |
32MB |
(1) 4M x 64 |
None |
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
40MB |
(1) 4M x 64 |
(1) 1M x 64 |
48MB |
(1) 4M x 64 |
(1) 2M x 64 |
64MB |
(1) 8M x 64 |
None |
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
72MB |
(1) 8M x 64 |
(1) 1M x 64 |
80MB |
(1) 8M x 64 |
(1) 2M x 64 |
96MB |
(1) 8M x 64 |
(1) 4M x 64 |
128MB |
(1) 16M x 64 |
None |
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
136MB |
(1) 16M x 64 |
(1) 1M x 64 |
144MB |
(1) 16M x 64 |
(1) 2M x 64 |
160MB |
(1) 16M x 64 |
(1) 4M x 64 |
192MB |
(1) 16M x 64 |
(1) 8M x 64 |
256MB |
(1) 16M x 64 |
(1) 16M x 64 |
| Note: Board accepts SDRAM memory. | ||
CACHE CONFIGURATION |
| Note: 256KB/512KB cache is located on the Pentium II CPU. |
VIDEO MEMORY CONFIGURATION |
| Note: To increase video memory from 4MB to 8MB, install 4MB module at P25. |
CPU SPEED SELECTION ) |
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CPU speed |
Clock speed |
Multiplier |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
233MHz |
66MHz |
3.5x |
Off |
Off |
On |
On |
266MHz |
66MHz |
4x |
On |
On |
Off |
On |
300MHz |
66MHz |
4.5x |
On |
Off |
Off |
On |
333MHz |
66MHz |
5x |
Off |
On |
Off |
On |
350MHz |
100MHz |
3.5x |
Off |
Off |
On |
On |
400MHz |
100MHz |
4x |
On |
On |
Off |
On |
450MHz |
100MHz |
4.5x |
On |
Off |
Off |
On |
500MHz |
100MHz |
5x |
Off |
On |
Off |
On |