INDUSTRIAL COMPUTER SOURCE
SB21064
|
Processor |
Alpha |
|
Processor Speed |
275/300MHz |
|
Chip Set |
DEC |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
128MB |
|
Maximum Video Memory |
None |
|
Cache |
512/2048KB |
|
BIOS |
Unidentified |
|
Dimensions |
Unidentified |
|
I/O Options |
Floppy drive interface, IDE interface, SCSI-2 interface, parallel port, PS/2 mouse interface, serial ports (2), cache slots (2) |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
SCSI-2 interface |
J1 |
Chassis fan power |
J14 |
|
Speaker, keyboard, keylock ,reset |
J3 |
IDE interface LED |
J15 |
|
IDE interface |
J4 |
PS/2 mouse interface |
J19 |
|
Floppy drive interface |
J5 |
Serial port 1 |
P1 |
|
Serial port 2 |
J6 |
Cache slots |
SL1 & SL2 |
|
Parallel port |
J11 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
SCSI termination enabled |
J10 |
Open | |
|
SCSI termination disabled |
J10 |
Closed | |
|
|
Flash BIOS memory update enabled |
J16 |
Pins 2 & 3 closed |
|
Flash BIOS memory update disabled |
J16 |
Pins 1 & 2 closed | |
|
SROM debugger |
J17/pins 23 & 24 |
Open | |
|
Flash BIOS first image booted |
J17/pins 25 & 26 |
Open | |
|
Flash BIOS firmware image booted |
J17/pins 25 & 26 |
Closed | |
|
SROM test port |
J18 |
Unidentified | |
|
SCSI controller enabled |
J20 |
Pins 1 & 2 closed | |
|
SCSI controller disabled |
J20 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP1 |
Unidentified |
|
SIMM CONFIGURATION | |
|
Size |
Bank 0 |
|
8MB |
(2) 1M x 36 |
|
16MB |
(2) 2M x 36 |
|
32MB |
(2) 4M x 36 |
|
64MB |
(2) 8M x 36 |
|
128MB |
(2) 16M x 36 |
|
CACHE CONFIGURATION |
|
Note: The sizes of the cache modules and orientation are unidentified. |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
J13/pins 1 & 2 |
J13/pins 3 & 4 |
J13/pins 5 & 6 |
J13/pins 7 & 8 |
|
None |
Open |
Open |
Open |
Open |
|
512KB |
Open |
Open |
Open |
Open |
|
2MB |
Closed |
Closed |
Open |
Open |
|
CACHE JUMPER CONFIGURATION (CONT) | |||
|
Size |
J17/pins 11 & 12 |
J17/pins 13 /& 14 |
J17/pins 15 & 16 |
|
None |
Closed |
Closed |
Closed |
|
512KB |
Open |
Closed |
Closed |
|
2MB |
Open |
Open |
Closed |
|
CACHE JUMPER CONFIGURATION (CONT) | |||
|
Size |
J17/pins 17 & 18 |
J17/pins 19 & 20 |
J17/pins 21 & 22 |
|
512KB |
Closed |
Open |
Open |
|
2MB |
Closed |
Open |
Open |
|
CPU SPEED SELECTION | ||||
|
Speed |
J17/pins 1 & 2 |
J17/pins 3 & 4 |
J17/pins 5 & 6 |
J17/pins 7 & 8 |
|
275MHz |
Closed |
Open |
Open |
Open |
|
300MHz |
Closed |
Open |
Open |
Open |