DATAEXPERT CORPORATION
MGX7520 (BABY AT)
|
Device Type |
Mainboard |
|
Processor |
Cyrix GXM |
|
Processor Speed |
Unidentified |
|
Chip Set |
Cyrix CX5520 |
|
Maximum Onboard Memory |
256MB (SDRAM supported) |
|
Video Chip Set |
Cyrix (integrated) |
|
Audio Chip Set |
Cyrix (integrated) |
|
Maximum Video Memory |
Unidentified |
|
Cache |
None |
|
BIOS |
Award |
|
Dimensions |
220mm x 220mm |
|
I/O Options |
32-bit PCI slots (2), floppy drive interface, game interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), ATX power connector, MIDI/TV out connector, audio in - CD-ROMs (2), soft off power supply |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
ATX-P connector |
ATXP |
Audio in - CD-ROM |
J8 |
|
Parallel port |
CN1 |
Audio in - CD-ROM |
J9 |
|
Serial port 2 |
CN3 |
PS/2 mouse interface |
JP5 |
|
Serial port 1 |
CN4 |
Power LED & keylock |
JP7/pins 1 - 5 |
|
Floppy drive interface |
CN5 |
Green PC LED |
JP7/pins 8 & 9 |
|
IDE interface 2 |
CN6 |
Soft off power supply |
JP7/pins 10 & 11 |
|
IDE interface 1 |
CN7 |
Reset switch |
JP7/pins 12 & 24 |
|
Game interface |
CN8 |
Speaker |
JP7/pins 13 - 16 |
|
MIDI/TV out connector |
CN9 |
IDE interface LED |
JP7/pins 20 & 21 |
|
Chassis fan power |
FAN |
Green PC connector |
JP7/pins 22 & 23 |
|
IR connector |
IR1 |
32-bit PCI slots |
PC1 PC2 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Label |
Position | |
|
|
Factory configured - do not alter |
J1 |
Unidentified |
|
|
CMOS memory normal operation |
JP13 |
Pins 1 & 2 closed |
|
CMOS memory clear |
JP13 |
Pins 2 & 3 closed | |
|
|
Factory configured - do not alter |
JP14 |
Unidentified |
|
DIMM CONFIGURATION | ||
|
Size |
Bank 0 |
Bank 1 |
|
8MB |
(1) 1M x 64 |
None |
|
16MB |
(1) 2M x 64 |
None |
|
16MB |
(1) 1M x 64 |
(1) 1M x 64 |
|
24MB |
(1) 2M x 64 |
(1) 1M x 64 |
|
32MB |
(1) 4M x 64 |
None |
|
32MB |
(1) 2M x 64 |
(1) 2M x 64 |
|
40MB |
(1) 4M x 64 |
(1) 1M x 64 |
|
48MB |
(1) 4M x 64 |
(1) 2M x 64 |
|
64MB |
(1) 8M x 64 |
None |
|
64MB |
(1) 4M x 64 |
(1) 4M x 64 |
|
72MB |
(1) 8M x 64 |
(1) 1M x 64 |
|
80MB |
(1) 8M x 64 |
(1) 2M x 64 |
|
96MB |
(1) 8M x 64 |
(1) 4M x 64 |
|
DIMM CONFIGURATION (CONT) | ||
|
Size |
Bank 0 |
Bank 1 |
|
128MB |
(1) 16M x 64 |
None |
|
128MB |
(1) 8M x 64 |
(1) 8M x 64 |
|
136MB |
(1) 16M x 64 |
(1) 1M x 64 |
|
144MB |
(1) 16M x 64 |
(1) 2M x 64 |
|
160MB |
(1) 16M x 64 |
(1) 4M x 64 |
|
192MB |
(1) 16M x 64 |
(1) 8M x 64 |
|
256MB |
(1) 16M x 64 |
(1) 16M x 64 |
|
Note: Board accepts SDRAM memory. | ||
|
VIDEO MEMORY CONFIGURATION |
|
Note: the size & location of the video memory is unidentified. |
|
CPU INTERNAL CLOCK SPEED SELECTION | |
|
Speed |
JP1 |
|
6x |
Pins 1 & 3, 4 & 6 closed |
|
7x |
Pins 2 & 4, 3 & 5 closed |
|
CPU SPEED SELECTION | |
|
Speed |
JP4 |
|
30MHz |
Pins 3 & 5, 4 & 6 closed |
|
33MHz |
Pins 1 & 3, 4 & 6 closed |
|
CPU VOLTAGE SELECTION | ||
|
Voltage |
V core |
JP2 |
|
3.3v |
2.9v/3.6v |
Pins 1 & 2, 4 & 5 closed |
|
2.9v/3.6v |
2.9v/3.6v |
Pins 2 & 3, 5 & 6 closed |