TEXT View Source
# DIGITAL EQUIPMENT CORPORATION
DIGITAL 21164
Processor Alpha
Processor Speed 266/300/333MHz
Chip Set DEC
Video Chip Set None
Maximum Onboard 512MB
Memory
Maximum Video None
Memory
Cache 2048/4096/8192KB
BIOS Unidentified
Dimensions 332mm x 307mm
I/O Options 64-bit PCI slots (2), 32-bit PCI slots (2),
floppy drive interface, IDE interface,
parallel port, PS/2 mouse port, serial ports
(2), cache slots (2)
NPU Options None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|----------------+--------------+----------------+-----------|
| Chassis fan | J2/pins 3 & | Serial port 1 | J27 |
| power | 5 | | |
|----------------+--------------+----------------+-----------|
| Chassis fan | J2/pins 7 & | IDE interface | J28 |
| power | 9 | | |
|----------------+--------------+----------------+-----------|
| Halt connector | J2/pins 8 & | Floppy drive | J31 |
| | 10 | interface | |
|----------------+--------------+----------------+-----------|
| Chassis fan | J2/pins 11 & | Parallel port | J33 |
| power | 13 | | |
|----------------+--------------+----------------+-----------|
| Reset switch | J2/pins 12 & | PS/2 mouse | J34 |
| | 14 | port | |
|----------------+--------------+----------------+-----------|
| IDE interface | J2/pins 15 & | 64-bit PCI | PC1 & PC2 |
| LED | 17 | slots | |
|----------------+--------------+----------------+-----------|
| Keylock | J2/pins 18 & | 32-bit PCI | PC3 & PC4 |
| | 20 | slots | |
|----------------+--------------+----------------+-----------|
| Speaker | J2/pins | Cache slot | SL1 |
| | 19,21,23,25 | | |
|----------------+--------------+----------------+-----------|
| Serial port 2 | J26 | Cache slot | SL2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|-----------------------------------+-----------+------------|
| » | Factory configured - do not | J1/pins 9 | N/A |
| | alter | & 10 | |
|---+-------------------------------+-----------+------------|
| » | SROM test disabled | J1/pins | Open |
| | | 23 & 24 | |
|---+-------------------------------+-----------+------------|
| | SROM test enabled | J1/pins | Closed |
| | | 23 & 24 | |
|---+-------------------------------+-----------+------------|
| » | Loaded image select alternate | J1/pins | Closed |
| | images loaded | 25 & 26 | |
|---+-------------------------------+-----------+------------|
| | Loaded image select first | J1/pins | Open |
| | image loaded | 25 & 26 | |
|---+-------------------------------+-----------+------------|
| » | Cache speed select nominal | J1/pins | Open |
| | read speed | 29 & 30 | |
|---+-------------------------------+-----------+------------|
| | Cache speed select read speed | J1/pins | Closed |
| | 1 cycle faster | 29 & 30 | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | J1/pins | N/A |
| | alter | 31 & 32 | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | J1/pins | N/A |
| | alter | 33 & 34 | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | J1/pins | N/A |
| | alter | 35 & 36 | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | J1/pins | N/A |
| | alter | 37 & 38 | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | J1/pins | N/A |
| | alter | 39 & 40 | |
|---+-------------------------------+-----------+------------|
| » | SROM test connector | J13 | N/A |
|---+-------------------------------+-----------+------------|
| » | Flash BIOS write protect | J14 | Pins 2 & 3 |
| | disabled | | closed |
|---+-------------------------------+-----------+------------|
| | Flash BIOS write protect | J14 | Pins 1 & 2 |
| | enabled | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 | Bank 2 | Bank 3 |
|-------+-------------+------------+------------+------------|
| 32MB | (2) 1M x 36 | (2) 1M x | (2) 1M x | (2) 1M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 64MB | (2) 2M x 36 | (2) 2M x | (2) 2M x | (2) 2M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 128MB | (2) 4M x 36 | (2) 4M x | (2) 4M x | (2) 4M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 256MB | (2) 8M x 36 | (2) 8M x | (2) 8M x | (2) 8M x |
| | | 36 | 36 | 36 |
|-------+-------------+------------+------------+------------|
| 512MB | (2) 16M x | (2) 16M x | (2) 16M x | (2) 16M x |
| | 36 | 36 | 36 | 36 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE CONFIGURATION |
|------------------------------------------------------------|
| Size | SL1 | SL2 |
|--------------------+--------------------+------------------|
| 2MB | 2MB | None |
|--------------------+--------------------+------------------|
| 4MB | 4MB | None |
|--------------------+--------------------+------------------|
| 8MB | 4MB | 4MB |
|------------------------------------------------------------|
| Note: The sizes of the cache modules are unidentified. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | J1/pins 11 & 12 | J1/pins 13 & 14 | J1/pins 15 & 16 |
|------+-----------------+-----------------+-----------------|
| 2MB | Closed | Open | Open |
|------+-----------------+-----------------+-----------------|
| 4MB | Open | Closed | Closed |
|------+-----------------+-----------------+-----------------|
| 8MB | Open | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE ADDRESS CONFIGURATION |
|------------------------------------------------------------|
| Size | J15 | J16 | J17 |
|------+-----------------+-----------------+-----------------|
| 2MB | Pins 1 & 2 | Pins 2 & 3 | Pins 2 & 3 |
| | closed | closed | closed |
|------+-----------------+-----------------+-----------------|
| 4MB | Pins 1 & 2 | Pins 1 & 2 | Pins 2 & 3 |
| | closed | closed | closed |
|------+-----------------+-----------------+-----------------|
| 8MB | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | closed | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CACHE SPEED CONFIGURATION |
|------------------------------------------------------------|
| Speed | J1/pins 17 & | J1/pins 19 & | J1/pins 21 & |
| | 18 | 20 | 22 |
|----------+----------------+----------------+---------------|
| | 6ns | Closed | Closed | Open |
|---+------+----------------+----------------+---------------|
| | 8ns | Closed | Open | Closed |
|---+------+----------------+----------------+---------------|
| » | 10ns | Closed | Open | Open |
|---+------+----------------+----------------+---------------|
| | 12ns | Open | Closed | Closed |
|---+------+----------------+----------------+---------------|
| | 15ns | Open | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| CPU DIVISOR SELECTION |
|------------------------------------------------------------|
| Divisor | J1/pins 1 | J1/pins 3 | J1/pins 5 | J1/pins 7 |
| | & 2 | & 4 | & 6 | & 8 |
|------------+-----------+-----------+-----------+-----------|
| 3 | Closed | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 4 | Closed | Open | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 5 | Closed | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 6 | Closed | Open | Open | Closed |
|------------+-----------+-----------+-----------+-----------|
| 7 | Closed | Open | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 8 (266MHz) | Open | Closed | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 9 (300MHz) | Open | Closed | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 10 | Open | Closed | Open | Closed |
| (333MHz) | | | | |
|------------+-----------+-----------+-----------+-----------|
| 11 | Open | Closed | Open | Open |
|------------+-----------+-----------+-----------+-----------|
| 12 | Open | Open | Closed | Closed |
|------------+-----------+-----------+-----------+-----------|
| 13 | Open | Open | Closed | Open |
|------------+-----------+-----------+-----------+-----------|
| 14 | Open | Open | Open | Closed |
|------------+-----------+-----------+-----------+-----------|
| 15 | Open | Open | Open | Open |
+------------------------------------------------------------+