DIGITAL EQUIPMENT CORPORATION
ALPHASTATION 500
|
Processor |
Alpha |
|
Processor Speed |
266/300/333MHz |
|
Chip Set |
DEC |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
512MB |
|
Maximum Video Memory |
None |
|
Cache |
2MB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, SCSI interface, external SCSI connector, parallel port, PS/2 mouse port, serial ports (2), riser slot, audio card connector, media adapter unit connector, SROM port |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Chassis fan power |
J1 |
Floppy drive interface |
J38 |
|
Cache fan connector |
J3 |
PS/2 mouse port |
J39 |
|
Diagnostic port |
J4 |
Serial port 1 |
J40 |
|
Front panel connector |
J5 |
Serial port 2 |
J40A |
|
SROM port |
J24 |
Parallel port |
J41 |
|
Media adapter unit connector |
J32 |
External SCSI connector |
J42 |
|
Audio card connector |
J36 |
Riser slot |
SL1 |
|
SCSI interface |
J37 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
J2 |
Unidentified |
|
|
Front panel button set as reset switch |
J6 |
Pins 1 & 2 closed |
|
Front panel button set as halt switch |
J6 |
Pins 2 & 3 closed | |
|
|
Secure console disabled |
J9 |
Pins 2 & 3 closed |
|
Secure console enabled |
J9 |
Pins 1 & 2 closed | |
|
|
Primary console enabled |
J10 |
Pins 2 & 3 closed |
|
Alternate console enabled |
J10 |
Pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
J15 |
Unidentified |
|
|
Factory configured - do not alter |
J16 |
Unidentified |
|
|
Flash BIOS write protect disabled |
J18 |
Pins 2 & 3 closed |
|
Flash BIOS write protect enabled |
J18 |
Pins 1 & 2 closed | |
|
|
Factory configured - do not alter |
J20 |
Unidentified |
|
|
Factory configured - do not alter |
J33 |
Unidentified |
|
|
Factory configured - do not alter |
J35 |
Unidentified |
|
DIMM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
32MB |
(4) 1M x 64 |
None |
|
64MB |
(4) 2M x 64 |
None |
|
128MB |
(4) 4M x 64 |
None |
|
256MB |
(4) 8M x 64 |
None |
|
64MB |
(4) 1M x 64 |
(4) 1M x 64 |
|
96MB |
(4) 2M x 64 |
(4) 1M x 64 |
|
160MB |
(4) 4M x 64 |
(4) 1M x 64 |
|
288MB |
(4) 8M x 64 |
(4) 1M x 64 |
|
128MB |
(4) 2M x 64 |
(4) 2M x 64 |
|
192MB |
(4) 4M x 64 |
(4) 2M x 64 |
|
320MB |
(4) 8M x 64 |
(4) 2M x 64 |
|
256MB |
(4) 4M x 64 |
(4) 4M x 64 |
|
384MB |
(4) 8M x 64 |
(4) 4M x 64 |
|
512MB |
(4) 8M x 64 |
(4) 8M x 64 |
|
CACHE CONFIGURATION |
|
Note: 2MB cache is factory installed and is not configurable. |
|
SROM SELECTION | ||||||
|
Setting |
J11 |
J12 |
J13 |
J14 |
J17 |
J19 |
|
Power up |
Closed |
Open |
Open |
Open |
Open |
Open |
|
Mini console |
Open |
Closed |
Open |
Open |
Open |
Open |
|
Floppy loader |
Open |
Open |
Closed |
Open |
Open |
Open |
|
Mem test |
Open |
Open |
Open |
Closed |
Open |
Open |
|
MCHK mini console |
Open |
Open |
Open |
Open |
Closed |
Open |
|
No init mini console |
Open |
Open |
Open |
Open |
Open |
Closed |