UNIDENTIFIED
AC 486 MODEL PGA
|
Processor |
80486SX/80486DX/80486DX2 |
|
Processor Speed |
20/25/33/50(internal)/66(internal)MHz |
|
Chip Set |
ACC |
|
Max. Onboard DRAM |
32MB |
|
Cache |
None |
|
BIOS |
AMI |
|
Dimensions |
254mm x 236mm |
|
I/O Options |
None |
|
NPU Options |
None |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
External battery |
J1 |
Reset switch |
J4 |
|
Turbo LED |
J2 |
Speaker |
J5 |
|
Turbo switch |
J3 |
Power LED & keylock |
J6 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
Monitor type select monochrome |
JP1 |
pins 1 & 2 closed | |
|
Monitor type select color |
JP1 |
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 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
CPU TYPE CONFIGURATION | ||||
|
Type |
Location |
JP3 |
JP4 |
JP5 |
|
80486SX |
Primary |
N/A |
Open |
pins 2 & 3 closed |
|
80487SX |
Upgrade |
pins 1 & 2 closed |
Closed |
N/A |
|
80486DX |
Primary |
N/A |
Open |
pins 1 & 2, 3 & 4 closed |
|
80486DX |
Upgrade |
pins 2 & 3 closed |
Closed |
N/A |
|
80486DX2 |
Primary |
N/A |
Open |
pins 1 & 2, 3 & 4 closed |
|
80486DX2 |
Upgrade |
pins 2 & 3 closed |
Closed |
N/A |