MAGUS DATA TECHNOLOGY, INC.
S486L12 EDITION 1.1
Processor |
80486SX/80487SX/80486DX/80486DX2/Pentium Overdrive |
Processor Speed |
25/33/50(internal)/66(internal)MHz |
Chip Set |
VLSI |
Max. Onboard DRAM |
128MB |
Cache |
None |
BIOS |
Unidentified |
Dimensions |
330mm x 218mm |
I/O Options |
32-bit VESA local bus slots (2) |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Turbo switch |
J1 |
Speaker |
J4 |
Turbo LED |
J2 |
Power LED & keylock |
J5 |
Reset switch |
J3 |
32-bit VESA local bus slots |
SL1 & SL2 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
» |
Power good signal detect from power supply |
JP1 |
pins 1 & 2 closed |
Power good signal detect from board |
JP1 |
pins 2 & 3 closed | |
» |
Monitor type select CGA/EGA/VGA |
JP2 |
pins 1 & 2 closed |
Monitor type select MDA/EGA/VGA |
JP2 |
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) 1M x 9 |
(4) 256K x 9 |
8MB |
(4) 1M x 9 |
(4) 1M x 9 |
16MB |
(4) 4M x 9 |
NONE |
17MB |
(4) 4M x 9 |
(4) 256K x 9 |
20MB |
(4) 4M x 9 |
(4) 1M x 9 |
32MB |
(4) 4M x 9 |
(4) 4M x 9 |
64MB |
(4) 16M x 9 |
NONE |
65MB |
(4) 16M x 9 |
(4) 256K x 9 |
68MB |
(4) 16M x 9 |
(4) 1M x 9 |
80MB |
(4) 16M x 9 |
(4) 4M x 9 |
128MB |
(4) 16M x 9 |
(4) 16M x 9 |
CPU TYPE CONFIGURATION | |||
Type |
JP4 |
JP5 |
JP6 |
80486SX |
pins 2 & 3 closed |
pins 2 & 3 closed |
pins 2 & 3 closed |
80487SX |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
80486DX |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
80486DX2 |
pins 2 & 3 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
Pentium Overdrive |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
CPU SPEED CONFIGURATION | |
Speed |
JP3 |
25MHz |
pins 1 & 2 closed |
33MHz |
pins 2 & 3 closed |
50iMHz |
pins 1 & 2 closed |
66iMHz |
pins 2 & 3 closed |
MISCELLANEOUS TECHNICAL NOTE |
Note:This board will handle a 80486DX4 with an adapter supplied from Magus. The settings for this adapter are unidentified by the manufacturer. |