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 (CON’T) | |||
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 (CON’T) | |||
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 |