ACER, INC.
ACERMATE 486
|
Device Type |
Mainboard |
|
Processor |
CX486/IBM486/TI486/80486SX/AM486DX/80486DX/AM486DX2/ 80486DX2/AM486DX4/80486DX4/P24T |
|
Processor Speed |
25/33/50(internal)/66(internal)/100(internal)MHz |
|
Chip Set |
Unidentified |
|
Video Chip Set |
Cirrus Logic |
|
Maximum Onboard Memory |
36MB |
|
Maximum Video Memory |
2MB |
|
Cache |
128/256KB |
|
BIOS |
Unidentified |
|
Dimensions |
330mm x 218mm |
|
I/O Options |
Floppy drive interface, IDE interfaces (2), parallel port, PS/2 mouse port, serial ports (2), riser slot, VGA port, VGA feature connector |
|
CONNECTIONS |
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|
Purpose |
Location |
Purpose |
Location |
|
Chassis fan power |
C1 |
IDE interface 1 |
CN7 |
|
VGA port |
CN1 |
Floppy drive interface |
CN8 |
|
Parallel port |
CN2 |
VGA feature connector |
CN9 |
|
Serial port 2 |
CN3 |
Daughter board connector |
JP44 |
|
Serial port 1 |
CN4 |
Daughter board connector |
JP45 |
|
PS/2 mouse port |
CN5 |
Riser slot |
SL1 |
|
IDE interface 2 |
CN6 |
|
|
|
USER CONFIGURABLE SETTINGS |
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|
Function |
Label |
Position |
|
|
|
Factory configured - do not alter |
J1 |
Unidentified |
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|
Factory configured - do not alter |
J2 |
Unidentified |
|
|
Factory configured - do not alter |
J3 |
Unidentified |
|
|
Factory configured - do not alter |
JP1 |
Unidentified |
|
|
Password enabled |
JP2 |
Pins 1 & 2 closed |
|
|
Password disabled |
JP2 |
Pins 2 & 3 closed |
|
|
Factory configured - do not alter |
JP4 |
Unidentified |
|
|
On board video enabled |
JP14 |
Closed |
|
|
On board video disabled |
JP14 |
Open |
|
|
IDE interface enabled |
JP16 |
Open |
|
|
IDE interface disabled |
JP16 |
Closed |
|
|
On board I/O enabled |
JP21 |
Closed |
|
|
On board I/O disabled |
JP21 |
Open |
|
|
Factory configured - do not alter |
JP22 |
Unidentified |
|
|
Factory configured - do not alter |
JP29 |
Unidentified |
|
Note: The location of JP16 is unidentified. |
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|
SIMM CONFIGURATION |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
4MB |
4MB |
None |
None |
|
5MB |
4MB |
(1) 256K x 36 |
None |
|
6MB |
4MB |
(1) 256K x 36 |
(1) 256K x 36 |
|
7MB |
4MB |
(1) 256K x 36 |
(1) 512K x 36 |
|
8MB |
4MB |
(1) 1M x 36 |
None |
|
9MB |
4MB |
(1) 1M x 36 |
(1) 256K x 36 |
|
SIMM CONFIGURATION (CON'T) |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
10MB |
4MB |
(1) 1M x 36 |
(1) 512K x 36 |
|
12MB |
4MB |
(1) 1M x 36 |
(1) 1M x 36 |
|
16MB |
4MB |
(1) 1M x 36 |
(1) 2M x 36 |
|
20MB |
4MB |
(1) 4M x 36 |
None |
|
21MB |
4MB |
(1) 4M x 36 |
(1) 256K x 36 |
|
22MB |
4MB |
(1) 4M x 36 |
(1) 512K x 36 |
|
24MB |
4MB |
(1) 4M x 36 |
(1) 1M x 36 |
|
28MB |
4MB |
(1) 4M x 36 |
(1) 2M x 36 |
|
36MB |
4MB |
(1) 4M x 36 |
(1) 4M x 36 |
|
Note: Bank 0 is factory installed and is not configurable. |
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|
DRAM CONFIGURATION |
|
|
Setting |
JP28 |
|
On board memory enabled |
Pins 1 & 2 closed |
|
On board memory disabled |
Pins 2 & 3 closed |
|
CACHE CONFIGURATION |
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|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
None |
(1) 32K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION |
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|
Size |
JP24 |
JP25 |
JP26 |
|
128KB |
Open |
Closed |
Pins 1 & 2 closed |
|
256KB |
Closed |
Closed |
Pins 2 & 3 closed |
|
VIDEO MEMORY CONFIGURATION |
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|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
|
512KB |
512KB |
None |
None |
|
1MB |
512KB |
(4) 256K x 4 |
None |
|
2MB |
512KB |
(4) 256K x 4 |
(2) 256K x 16 |
|
CPU SPEED SELECTION |
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|
Speed |
CN14 |
JP10 |
JP17 |
JP19 |
|
25MHz |
Pins 4 & 8 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
33MHz |
Pins 3 & 7 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
50iMHz |
Pins 4 & 8 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
66iMHz |
Pins 3 & 7 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
100iMHz |
Pins 3 & 7 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
Pins 2 & 3 closed |
|
CPU TYPE SELECTION |
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|
Type |
JP11 |
JP12 |
JP13 |
JP18 |
JP20 |
|
CX486 |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
|
IBM486 |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
1 & 2 |
|
TI486 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
80486SX |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
AM486DX |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
AM486DX2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX2 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX2 (WB) |
1 & 2 |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
|
AM486DX4 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX4 |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX4 (WB) |
1 & 2 |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
|
P24T |
1 & 2 |
2 & 3 |
1 & 2 |
1 & 2 |
2 & 3 |
|
Note: Pins designated should be in the closed position. |
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|
CPU TYPE SELECTION (CON'T) |
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|
Type |
JP30 |
JP31 |
JP32 |
JP33 |
JP34 |
|
CX486 |
Closed |
Closed |
Closed |
2 & 3 |
Open |
|
IBM486 |
Closed |
Closed |
Closed |
2 & 3 |
Open |
|
TI486 |
Open |
Open |
Open |
1 & 2 |
Open |
|
80486SX |
Open |
Open |
Open |
1 & 2 |
Closed |
|
AM486DX |
Open |
Open |
Open |
1 & 2 |
Open |
|
80486DX |
Open |
Open |
Open |
1 & 2 |
Closed |
|
AM486DX2 |
Open |
Open |
Open |
1 & 2 |
Open |
|
80486DX2 |
Open |
Open |
Open |
1 & 2 |
Closed |
|
80486DX2 (WB) |
Open |
Open |
Open |
1 & 2 |
Closed |
|
AM486DX4 |
Open |
Open |
Open |
1 & 2 |
Open |
|
80486DX4 |
Open |
Open |
Open |
1 & 2 |
Closed |
|
80486DX4 (WB) |
Open |
Open |
Open |
1 & 2 |
Closed |
|
P24T |
Open |
Open |
Open |
1 & 2 |
Closed |
|
Note: Pins designated should be in the closed position. |
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|
CPU TYPE SELECTION (CON'T) |
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|
Type |
JP35 |
JP36 |
JP39 |
JP40 |
JP41 |
|
CX486 |
Open |
Open |
1 & 2, 4 & 5 |
2 & 3 |
2 & 3 |
|
IBM486 |
Open |
Open |
1 & 2, 4 & 5 |
2 & 3 |
2 & 3 |
|
TI486 |
Open |
Open |
2 & 3, 5 & 6 |
2 & 3 |
2 & 3 |
|
80486SX |
Closed |
Closed |
1 & 2, 4 & 5 |
2 & 3 |
2 & 3 |
|
AM486DX |
Open |
Open |
1 & 2, 4 & 5 |
1 & 2 |
1 & 2 |
|
80486DX |
Closed |
Closed |
1 & 2, 4 & 5 |
2 & 3 |
2 & 3 |
|
AM486DX2 |
Open |
Open |
1 & 2, 4 & 5 |
1 & 2 |
1 & 2 |
|
80486DX2 |
Closed |
Closed |
1 & 2, 4 & 5 |
2 & 3 |
2 & 3 |
|
80486DX2 (WB) |
Closed |
Closed |
1 & 2, 4 & 5 |
2 & 3 |
2 & 3 |
|
AM486DX4 |
Open |
Open |
1 & 2, 4 & 5 |
1 & 2 |
1 & 2 |
|
80486DX4 |
Closed |
Closed |
1 & 2, 4 & 5 |
2 & 3 |
2 & 3 |
|
80486DX4 (WB) |
Closed |
Closed |
1 & 2, 4 & 5 |
2 & 3 |
2 & 3 |
|
P24T |
Closed |
Closed |
1 & 2, 4 & 5 |
2 & 3 |
2 & 3 |
|
Note: Pins designated should be in the closed position. |
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|
CPU TYPE SELECTION (CON'T) |
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|
Type |
JP42 |
JP43 |
JP46 |
JP47 |
JP48 |
|
CX486 |
2 & 3 |
Open |
1 & 2 |
2 & 3 |
Open |
|
IBM486 |
2 & 3 |
Open |
1 & 2 |
2 & 3 |
Open |
|
TI486 |
1 & 2 |
Open |
1 & 2 |
1 & 2 |
Open |
|
80486SX |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
Open |
|
AM486DX |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
Closed |
|
80486DX |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
Open |
|
AM486DX2 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
Closed |
|
80486DX2 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
Open |
|
80486DX2 (WB) |
2 & 3 |
Open |
2 & 3 |
1 & 2 |
Open |
|
AM486DX |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
Open |
|
80486DX4 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
Open |
|
80486DX4 (WB) |
2 & 3 |
Open |
2 & 3 |
1 & 2 |
Open |
|
P24T |
2 & 3 |
Open |
2 & 3 |
1 & 2 |
Open |
|
Note: Pins designated should be in the closed position. |
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|
RESET/RESUME SELECTION |
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|
Setting |
JP37 |
JP38 |
|
Reset button |
Pins 1 & 2 closed |
Pins 1 & 2 closed |
|
Suspend/reset button |
Pins 2 & 3 closed |
Pins 2 & 3 closed |