DIGITAL EQUIPMENT CORPORATION
PC 2230 CE
|
Processor |
80286 |
|
Processor Speed |
12MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
ATI |
|
Maximum Onboard Memory |
4MB |
|
Maximum Video Memory |
64KB |
|
Cache |
None |
|
BIOS |
Unidentified |
|
Dimensions |
238mm x 228mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, serial ports (2), VGA port, riser slot |
|
NPU Options |
80287 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Floppy/hard drive power interface |
J5 |
Serial port |
J10 |
|
IDE interface |
J6 |
Parallel port |
J11 |
|
Floppy drive interface |
J7 |
VGA port |
J12 |
|
Serial port |
J9 |
Riser slot |
SL1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
SIMM type select 256KB |
W6 |
Open | |
|
SIMM type select 1MB |
W6 |
Closed | |
|
|
BIOS type select 27256 |
W8 |
Closed |
|
BIOS type select 27128 |
W8 |
Open | |
|
Shadow RAM enabled |
W9 |
Open | |
|
Shadow RAM disabled |
W9 |
Closed | |
|
SIMM type select all same type |
W18 |
Open | |
|
SIMM type select mixed SIMMs |
W18 |
Closed | |
|
|
Keyboard clock speed select 8MHz |
W22 |
Pins 1 & 2 closed |
|
Keyboard clock speed select 4MHz |
W22 |
Pins 2 & 3 closed | |
|
|
Burn in mode not disabled |
W26 |
Open |
|
Burn in mode enabled |
W26 |
Closed | |
|
|
Manufacturing mode disabled |
W27 |
Open |
|
Manufacturing mode enabled |
W27 |
Closed | |
|
|
Floppy drive interface enabled |
W28 |
Open |
|
Floppy drive interface disabled |
W28 |
Closed | |
|
|
Video type select normal |
W29 |
Open |
|
Video type select slow |
W29 |
Closed | |
|
Speaker volume select high |
W30 |
Open | |
|
Speaker volume select low |
W30 |
Closed | |
|
|
60ns CAS enabled |
W31 |
Closed |
|
60ns CAS disabled |
W31 |
Open | |
|
I/O half speed enabled |
W33 |
Pins 1 & 2 closed | |
|
I/O half speed disabled |
W33 |
Pins 2 & 3 closed | |
|
Monitor type select color |
S1/1 |
On | |
|
Monitor type select monochrome |
S1/1 |
Off | |
|
Monochrome mode using a color monitor |
S1/2 |
On | |
|
Color mode using a monochrome monitor |
S1/2 |
Off | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
256KB |
(1) 256K x 9 |
None |
None |
None |
|
512KB |
(1) 256K x 9 |
(1) 256K x 9 |
None |
None |
|
768KB |
(1) 256K x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
None |
|
1MB |
(1) 256K x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
|
1MB |
(1) 1M x 9 |
None |
None |
None |
|
1.2MB |
(1) 1M x 9 |
(1) 256K x 9 |
None |
None |
|
1.5MB |
(1) 1M x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
None |
|
1.79MB |
(1) 1M x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
|
DRAM CONFIGURATION (CONT) | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
2MB |
(1) 1M x 9 |
(1) 1M x 9 |
None |
None |
|
2.28MB |
(1) 1M x 9 |
(1) 1M x 9 |
(1) 256K x 9 |
None |
|
2.5MB |
(1) 1M x 9 |
(1) 1M x 9 |
(1) 256K x 9 |
(1) 256K x 9 |
|
3MB |
(1) 1M x 9 |
(1) 1M x 9 |
(1) 1M x 9 |
None |
|
4MB |
(1) 1M x 9 |
(1) 1M x 9 |
(1) 1M x 9 |
(1) 1M x 9 |
|
Note: The location of banks 0, 1, 2, & 3 is unidentified. | ||||
|
DRAM JUMPER SELECTION | ||
|
SIMMS installed |
W16 |
W17 |
|
1 |
Open |
Open |
|
2 |
Open |
Closed |
|
3 |
Closed |
Open |
|
4 |
Closed |
Closed |
|
DRAM SPEED SELECTION | ||
|
Speed |
W13 |
W14 |
|
100ns |
Open |
Closed |
|
120ns |
Closed |
Open |
|
VIDEO MEMORY CONFIGURATION |
|
Note: The location of the 64KB video memory is unidentified. |
|
ONBOARD VIDEO SELECTION | |||
|
Setting |
W10 |
W21 | |
|
Enabled |
Closed |
Closed | |
|
Disabled |
Open |
Open | |
|
Disabled |
Open |
Closed | |
|
Disabled |
Closed |
Open | |