DIGITAL EQUIPMENT CORPORATION
VENTURIS PENTIUM (VER. 2.0)
|
Device Type |
Mainboard |
|
Processor |
Pentium |
|
Processor Speed |
75/90/100/120/133/150/166/180/200MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
S3 |
|
Maximum Onboard Memory |
128MB |
|
Maximum Video Memory |
Unidentified |
|
Cache |
256KB |
|
BIOS |
Unidentified |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
VGA port |
CN1 |
Floppy drive interface |
CN6 |
|
Parallel port |
CN2 |
IDE interface |
CN7 |
|
Serial port |
CN3 |
IDE interface |
CN8 |
|
Serial port |
CN4 |
Riser slot |
SL1 |
|
PS/2 mouse port |
CN5 | ||
|
Note: VGA & serial ports are shown for informational purposes only. The location may not be exact. | |||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Recovery mode normal operation |
J10 |
Open |
|
Recovery mode enabled |
J10 |
Closed | |
|
|
Password normal operation |
J11 |
Open |
|
Password memory clear |
J11 |
Closed | |
|
|
CMOS memory normal operation |
J16 |
Pins 1 & 2 closed |
|
CMOS memory clear |
J16 |
Pins 2 & 3 closed | |
|
Boot block disabled |
J32 |
Pins 2 & 3 closed | |
|
Boot block enabled |
J32 |
Pins 1 & 2 closed | |
|
SIMM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
8MB |
(2) 1M x 36 |
None |
|
16MB |
(2) 2M x 36 |
None |
|
16MB |
(2) 1M x 36 |
(2) 1M 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 |
|
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 |
|
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 |
|
CACHE CONFIGURATION |
|
Note: Board is factory installed with 256KB cache. The location is unidentified. |
|
VIDEO MEMORY CONFIGURATION |
|
Note: The location & size of the video memory is unidentified. |
|
CPU SPEED SELECTION | ||||||
|
CPU speed |
Clock speed |
Multiplier |
J21 |
J22 |
J25 |
J27 |
|
75MHz |
50MHz |
1.5x |
Open |
Open |
Open |
Open |
|
90MHz |
60MHz |
1.5x |
Open |
Closed |
Open |
Open |
|
100MHz |
66MHz |
1.5x |
Closed |
Closed |
Open |
Open |
|
120MHz |
60MHz |
2x |
Open |
Closed |
Open |
Closed |
|
133MHz |
66MHz |
2x |
Closed |
Closed |
Open |
Closed |
|
150MHz |
60MHz |
2.5x |
Open |
Closed |
Closed |
Closed |
|
166MHz |
66MHz |
2.5x |
Closed |
Closed |
Closed |
Closed |
|
180MHz |
60MHz |
3x |
Open |
Closed |
Closed |
Open |
|
200MHz |
66MHz |
3x |
Closed |
Closed |
Closed |
Open |
|
CPU VOLTAGE SELECTION | |
|
Voltage |
J35 |
|
Standard |
Open |
|
VRE |
Closed |