ACER, INC.
CMPD4700ZIF
|
Processor |
80486DX/80486DX2 |
|
Processor Speed |
20/25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
None |
|
Maximum Onboard Memory |
32MB |
|
Maximum Video Memory |
None |
|
Cache |
64/128/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
32-bit VESA local bus slot, serial ports (2), game interface, parallel port, floppy drive interface, IDE interface |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J2 |
Speaker |
J11 |
|
Serial port 2 |
J4 |
Reset switch |
J12 |
|
Serial port 1 |
J5 |
IDE interface LED |
J13 |
|
Game interface |
J6 |
Turbo switch |
J14 |
|
Parallel port |
J7 |
Turbo LED |
J15 |
|
Floppy drive interface |
J8 |
Power LED & keylock |
J16 |
|
IDE interface |
J9 |
32-bit VESA local bus slot |
SL1 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
Battery type select internal |
W1 |
Closed | |
|
Battery type select external |
W1 |
Open | |
|
Monitor type select color |
W2 |
Closed | |
|
Monitor type select monochrome |
W2 |
Open | |
|
|
Factory configured - do not alter |
W8 |
Pins 2 & 3 closed |
|
DRAM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
1MB |
(4) 256K x 9 |
None |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
None |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
|
5MB |
(4) 1M x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
None |
|
17MB |
(4) 256K x 9 |
(4) 4M x 9 |
|
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CACHE CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
64KB |
(4) 8K x 8 |
(4) 8K x 8 |
|
128KB |
(4) 32K x 8 |
None |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
|
CACHE TAG CONFIGURATION | |||
|
Size |
TAG 0 |
TAG 1 |
TAG 2 |
|
64KB |
None |
(1) 8K x 8 |
(1) 64K x 1 |
|
128KB |
None |
(1) 8K x 8 |
(1) 64K x 1 |
|
256KB |
(1) 8K x 8 |
(1) 8K x 8 |
(1) 64K x 1 |
|
CACHE JUMPER CONFIGURATION | ||||
|
Size |
W4 |
W5 |
W6 |
W13 |
|
64KB |
Pins 2 & 3 closed |
Open |
Open |
Pins 2 & 3 closed |
|
128KB |
Pins 1 & 2 closed |
Open |
Closed |
Pins 1 & 2 closed |
|
256KB |
Pins 2 & 3 closed |
Closed |
Closed |
Pins 2 & 3 closed |
|
CACHE JUMPER CONFIGURATION (CONT) | ||||
|
Size |
W19 |
W20 |
W21 |
W22 |
|
64KB |
Open |
Open |
Open |
Open |
|
128KB |
Open |
Open |
Open |
Closed |
|
256KB |
Open |
Open |
Closed |
Closed |
|
CPU SPEED SELECTION | |||
|
Speed |
W14 |
W15 |
W16 |
|
20MHz |
Closed |
Open |
Open |
|
25MHz |
Open |
Closed |
Closed |
|
33MHz |
Open |
Closed |
Open |
|
40MHz |
Open |
Open |
Closed |
|
50iMHz |
Open |
Closed |
Closed |
|
50MHz |
Open |
Closed |
Closed |
|
66iMHz |
Open |
Closed |
Open |
|
CPU TYPE SELECTION | |||||||
|
Type |
W3 |
W7 |
W9 |
W17 |
W18 |
W23 |
W24 |
|
80486DX |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
Open |
2 & 3 |
|
80486DX-50 |
1 & 2 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
Closed |
2 & 3 |
|
80486DX2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
Open |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||||
|
VL BUS WAIT STATE SELECTION | |
|
Setting |
W11 |
|
0 |
Open |
|
1 |
Closed |
|
VL BUS SPEED SELECTION | ||
|
Speed |
W10 |
W12 |
|
<= 33MHz |
Open |
Closed |
|
40MHz |
Closed |
Open |
|
50MHz |
Open |
Open |