EPSON, INC.
ACTION DESK 4000
|
Processor |
80486SX/80487SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/50(internal)/66(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Cirrus Logic |
|
Maximum Onboard Memory |
64MB |
|
Maximum Video Memory |
2MB |
|
Cache |
64/128/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
Floppy drive interface, IDE interface, parallel port, PS/2 mouse port, serial ports (2), VGA port, riser slot |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Floppy drive interface |
CN1 |
VGA port |
CN6 |
|
PS/2 mouse port |
CN2 |
IDE interface 1 |
CN7 |
|
Serial port 1 |
CN3 |
Front panel connector |
CN8 |
|
Serial port 2 |
CN4 |
Turbo switch |
J22 |
|
Parallel port |
CN5 |
Riser slot |
SL1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Parallel port LPT select LPT1 |
J5 |
Pins 1 & 2 closed |
|
Parallel port LPT select LPT2 |
J5 |
Pins 2 & 3 closed | |
|
|
Serial port 1 COM select COM1 |
J6 |
Pins 1 & 2 closed |
|
Serial port 1 COM select COM3 |
J6 |
Pins 2 & 3 closed | |
|
|
Serial port 2 COM select COM2 |
J7 |
Pins 1 & 2 closed |
|
Serial port 2 COM select COM4 |
J7 |
Pins 2 & 3 closed | |
|
|
Floppy drive interface enabled |
J8 |
Pins 1 & 2 closed |
|
Floppy drive interface disabled |
J8 |
Pins 2 & 3 closed | |
|
|
Turbo enabled |
J22 |
Open |
|
Turbo disabled |
J22 |
Closed | |
|
|
Battery type select internal |
J34 |
Pins 2 & 3 closed |
|
CMOS memory clear |
J34 |
Pins 3 & 4 closed | |
|
|
IDE interface enabled |
J35 |
Pins 1 & 2 closed |
|
IDE interface disabled |
J35 |
Pins 2 & 3 closed | |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
4MB |
(1) 1M x 36 |
None |
|
5MB |
(1) 1M x 36 |
(1) 256K x 36 |
|
6MB |
(1) 1M x 36 |
(1) 512K x 36 |
|
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
|
8MB |
(1) 2M x 36 |
None |
|
9MB |
(1) 2M x 36 |
(1) 256K x 36 |
|
10MB |
(1) 2M x 36 |
(1) 512K x 36 |
|
12MB |
(1) 1M x 36 |
(1) 2M x 36 |
|
12MB |
(1) 2M x 36 |
(1) 1M x 36 |
|
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
|
16MB |
(1) 4M x 36 |
None |
|
17MB |
(1) 4M x 36 |
(1) 256K x 36 |
|
18MB |
(1) 4M x 36 |
(1) 512K x 36 |
|
20MB |
(1) 4M x 36 |
(1) 1M x 36 |
|
24MB |
(1) 4M x 36 |
(1) 2M x 36 |
|
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
|
32MB |
(1) 8M x 36 |
None |
|
33MB |
(1) 8M x 36 |
(1) 256K x 36 |
|
34MB |
(1) 8M x 36 |
(1) 512K x 36 |
|
36MB |
(1) 8M x 36 |
(1) 1M x 36 |
|
40MB |
(1) 8M x 36 |
(1) 2M x 36 |
|
48MB |
(1) 4M x 36 |
(1) 8M x 36 |
|
48MB |
(1) 8M x 36 |
(1) 4M x 36 |
|
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
|
Note: The location of banks 0 & 1 are unidentified. | ||
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(4) 32K x 8 |
None |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
Note: The location of banks 0 & 1 and the TAG are unidentified. | |||
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
J25 |
J26 |
J27 |
J28 |
|
64KB |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Open |
Pins 2 & 3 closed |
|
128KB |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
256KB |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
VIDEO MEMORY CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
1MB |
None |
|
2MB |
1MB |
(2) 256K x 16 |
|
Note: Bank 0 is factory installed and is not configurable. | ||
|
CPU SPEED SELECTION | |
|
Speed |
J16 |
|
25MHz |
Pins 5 & 6 closed |
|
33MHz |
Pins 1 & 2 closed |
|
50iMHz |
Pins 5 & 6 closed |
|
66iMHz |
Pins 1 & 2 closed |
|
CPU TYPE SELECTION | ||
|
Type |
J17 |
J19 |
|
80486SX |
Pins 2 & 3 closed |
Open |
|
80487SX |
Pins 1 & 2, 3 & 4 closed |
Pins 2 & 3 closed |
|
80486DX |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |
|
80486DX2 |
Pins 1 & 2, 3 & 4 closed |
Pins 1 & 2 closed |