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Articles / TULARC / PC info / Motherboards / Motherboards / |  |
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486-25/33 CACHE Motherboard Settings and Configuration |
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UNIDENTIFIED
486-25/33 CACHE
|
Processor |
80486DX |
|
Processor Speed |
25/33MHz |
|
Chip Set |
OPTI |
|
Max. Onboard DRAM |
32MB |
|
Cache |
64/128KB |
|
BIOS |
AMI |
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Dimensions |
330mm x 218mm |
|
I/O Options |
32-bit external memory card slot |
|
NPU Options |
4167 |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Reset switch |
JP1 |
Turbo switch |
JP10 |
|
Speaker |
JP2 |
Turbo LED |
JP11 |
|
External battery |
JP8 |
32-bit external memory card |
S1 |
|
Power LED & keylock |
JP9 | ||
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USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
| » |
Monitor type select color |
JP6 |
pins 2 & 3 closed |
|
Monitor type select monochrome |
JP6 |
pins 1 & 2 closed | |
| » |
CMOS memory normal operation |
JP7 |
pins 1 & 2 closed |
|
CMOS memory clear |
JP7 |
pins 2 & 3 closed | |
| » |
CPU speed select switchable at keyboard |
JP10 |
Closed |
|
CPU speed select forced fast |
JP10 |
Open | |
|
DRAM CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
|
1MB |
(4) 256K x 9 |
NONE |
NONE |
NONE |
|
2MB |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
NONE |
|
3MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
NONE |
|
4MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 256K x 9 |
|
4MB |
(4) 1M x 9 |
NONE |
NONE |
NONE |
|
5MB |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
6MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
NONE |
|
7MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 256K x 9 |
|
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
NONE |
|
9MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
10MB |
(4) 256K x 9 |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
12MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
NONE |
|
13MB |
(4) 256K x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
(4) 1M x 9 |
|
16MB |
(4) 4M x 9 |
NONE |
NONE |
NONE |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
NONE |
NONE |
|
Note:Banks 2 & 3 are used when a 32-bit external memory card is installed at S1. | ||||
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CACHE CONFIGURATION | ||||
|
Size |
Bank 0 |
Bank 1 |
T 1 |
T2 |
|
64KB |
(8) 8K x 8 |
NONE |
(1) 8K x 8 |
(1) 8K x 8 |
|
128KB |
(8) 8K x 8 |
(8) 8K x 8 |
(1) 8K x 8 |
NONE |
|
CACHE JUMPER CONFIGURATION | |||||
|
Size |
J1 |
J2 |
J3 |
J4 |
J5 |
|
64KB |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
1 & 2 |
|
128KB |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||
486-25/33 CACHE, motherboard, processor, socket, pentium, pentium pro, celeron, powerpc, alpha, 8088, 8086, 286, 386, 486, configuration, RAM, DRAM, floppy, jumper, connections
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