MECER CORPORATION
B815B (VER. B)
|
Processor |
80386DX/CX486DLC/CX486M6/80486SX/80486DX/80486DX2 |
|
Processor Speed |
25/33/40/50(internal)/50/66(internal)MHz |
|
Chip Set |
Unidentified |
|
Max. Onboard DRAM |
128MB |
|
Cache |
128/256KB |
|
BIOS |
AMI |
|
Dimensions |
254mm x 218mm |
|
I/O Options |
None |
|
NPU Options |
80387DX |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Auxiliary keyboard connector |
JP1 |
Turbo LED |
JP27 pins 11 - 12 |
|
External battery |
JP12 |
Turbo switch |
JP27 pins 16 - 17 |
|
Power LED & keylock |
JP27 pins 1 - 5 |
Reset switch |
JP27 pins 19 - 20 |
|
Speaker |
JP27 pins 7 - 10 | ||
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Jumper |
Position | |
|
|
Monitor type select monochrome |
JP10 |
pins 1 & 2 closed |
|
Monitor type select color |
JP10 |
pins 2 & 3 closed | |
|
|
Battery enabled |
JP13 |
Closed |
|
Battery disabled |
JP13 |
Open | |
|
|
Factory configured - do not alter |
JP17 |
N/A |
|
|
Factory configured - do not alter |
JP18 |
N/A |
|
|
Factory configured - do not alter |
JP21 |
N/A |
|
|
Factory configured - do not alter |
JP22 |
N/A |
|
|
Factory configured - do not alter |
JP28 |
pins 1 & 2 closed |
|
|
Factory configured - do not alter |
JP33 |
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 |
|
17MB |
(4) 256K x 9 |
(4) 4M x 9 |
|
20MB |
(4) 1M x 9 |
(4) 4M x 9 |
|
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
|
64MB |
(4) 16M x 9 |
NONE |
|
65MB |
(4) 256K x 9 |
(4) 16M x 9 |
|
68MB |
(4) 1M x 9 |
(4) 16M x 9 |
|
80MB |
(4) 4M x 9 |
(4) 16M x 9 |
|
128MB |
(4) 16M x 9 |
(4) 16M x 9 |
|
CACHE CONFIGURATION | |||
|
Size |
Bank 0 |
Bank 1 |
TAG |
|
128KB |
(4) 32K x 8 |
NONE |
(1) 8K x 8 |
|
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
(1) 32K x 8 |
|
CACHE JUMPER CONFIGURATION | ||
|
Size |
JP24 |
JP25 |
|
128KB |
Open |
pins 2 & 3 closed |
|
256KB |
Closed |
pins 1 & 2 closed |
|
CPU TYPE CONFIGURATION | ||||
|
Type |
J1 |
JP2 |
JP3 |
JP4 |
|
80386DX-40 (80MHz) |
6 & 8 |
2 & 3 |
1 & 2 |
2 & 3 |
|
CX486DLC-40 (80MHz) |
6 & 8 |
2 & 3 |
2 & 3 |
2 & 3 |
|
CX486M6-33 (33MHz) |
5 & 7 |
2 & 3 |
2 & 3 |
1 & 2 |
|
CX486M6-33 (66MHz) |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
|
CX486M6-40 (40MHz) |
1 & 2, 3 & 4 |
2 & 3 |
2 & 3 |
1 & 2 |
|
CX486M6-33 (33MHz) C6 |
5 & 7 |
2 & 3 |
2 & 3 |
1 & 2 |
|
CX486M6-33 (66MHz) C6 |
1 & 2 |
2 & 3 |
2 & 3 |
1 & 2 |
|
CX486M6-40 (40MHz) C6 |
1 & 2, 3 & 4 |
2 & 3 |
2 & 3 |
1 & 2 |
|
80486SX-25 (25MHz) |
3 & 4, 5 & 7 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486SX-25 (50MHz) |
3 & 4 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486SX-33 (33MHz) |
5 & 7 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486SX-33 (66MHz) |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX-33 (33MHz) |
5 & 7 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX-33 (66MHz) |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX-40 (40MHz) |
1 & 2, 3 & 4 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX-50 (50MHz) |
3 & 4 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX2-50 (25MHz) |
3 & 4 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX2-50 (50MHz) |
3 & 4, 5 & 7 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX2-66 (33MHz) |
5 & 7 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX2-66 (66MHz) |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | ||||
|
CPU TYPE CONFIGURATION (CONT) | |||||
|
Type |
JP11 |
JP14 |
JP15 |
JP16 |
JP19 |
|
80386DX-40 (80MHz) |
1 & 2 |
1 & 2 |
1 & 2 |
2 & 3 |
2 & 3 |
|
CX486DLC-40 (80MHz) |
1 & 2 |
2 & 3 |
1 & 2 |
2 & 3 |
2 & 3 |
|
CX486M6-33 (33MHz) |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
|
CX486M6-33 (66MHz) |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
2 & 3 |
|
CX486M6-40 (40MHz) |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
|
CX486M6-33 (33MHz) C6 |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
CX486M6-33 (66MHz) C6 |
1 & 2 |
2 & 3 |
1 & 2 |
2 & 3 |
2 & 3 |
|
CX486M6-40 (40MHz) C6 |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486SX-25 (25MHz) |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
|
80486SX-25 (50MHz) |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
2 & 3 |
|
80486SX-33 (33MHz) |
2 & 3 |
2 & 3 |
Open |
1 & 2 |
1 & 2 |
|
80486SX-33 (66MHz) |
1 & 2 |
2 & 3 |
Open |
1 & 2 |
2 & 3 |
|
80486DX-33 (33MHz) |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX-33 (66MHz) |
1 & 2 |
2 & 3 |
1 & 2 |
2 & 3 |
2 & 3 |
|
80486DX-40 (40MHz) |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX-50 (50MHz) |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX2-50 (25MHz) |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX2-50 (50MHz) |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX2-66 (33MHz) |
2 & 3 |
2 & 3 |
1 & 2 |
2 & 3 |
1 & 2 |
|
80486DX2-66 (66MHz) |
1 & 2 |
2 & 3 |
1 & 2 |
2 & 3 |
2 & 3 |
|
Note: Pins designated should be in the closed position. | |||||
|
CPU TYPE CONFIGURATION (CONT) | |||||
|
Type |
JP29 |
JP30 |
JP31 |
JP32 |
JP34 |
|
80386DX-40 (80MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
CX486DLC-40 (80MHz) |
Open |
Open |
Closed |
Closed |
Closed |
|
CX486M6-33 (33MHz) |
Closed |
Closed |
Open |
Open |
Open |
|
CX486M6-33 (66MHz) |
Closed |
Closed |
Open |
Open |
Open |
|
CX486M6-40 (40MHz) |
Closed |
Closed |
Open |
Open |
Open |
|
CX486M6-33 (33MHz) C6 |
Open |
Open |
Closed |
Closed |
Open |
|
CX486M6-33 (66MHz) C6 |
Open |
Open |
Closed |
Closed |
Open |
|
CX486M6-40 (40MHz) C6 |
Open |
Open |
Closed |
Closed |
Open |
|
80486SX-25 (25MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486SX-25 (50MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486SX-33 (33MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486SX-33 (66MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486DX-33 (33MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486DX-33 (66MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486DX-40 (40MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486DX-50 (50MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486DX2-50 (25MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486DX2-50 (50MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486DX2-66 (33MHz) |
Open |
Open |
Closed |
Closed |
Open |
|
80486DX2-66 (66MHz) |
Open |
Open |
Closed |
Closed |
Open |