MICRO-STAR INTERNATIONAL CO., LTD.
MS-5123
Processor |
CX M1/Pentium |
Processor Speed |
75/80/90/100/120/133MHz |
Chip Set |
SIS |
Max. Onboard DRAM |
512MB |
Cache |
256/512/1024KB |
BIOS |
Award |
Dimensions |
280mm x 220mm |
I/O Options |
32-bit PCI slots (3), floppy drive interface, green PC connector, IDE interfaces (2), parallel port, PS/2 mouse interface, serial ports (2), VGA feature connector, VGA interface, VRM connector |
NPU Options |
None |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
Serial port 1 |
CN1 |
Speaker |
JFP pins 6 - 10 |
Serial port 2 |
CN2 |
Turbo LED |
JFP pins 12 & 13 |
Parallel port |
CN3 |
Turbo switch |
JFP pins 15 - 17 |
VGA interface |
CN4 |
Reset switch |
JFP pins 19 & 20 |
Floppy drive interface |
CN5 |
IDE interface LED |
JFP pins 21 & 22 |
IDE interface 2 |
CN6 |
Green PC connector |
JG1 |
IDE interface 1 |
CN7 |
Green PC LED |
JG2 |
External battery |
JB1 |
32-bit PCI slots |
PC1 - PC3 |
Chassis fan power |
JFAN |
PS/2 mouse interface |
PSM |
VGA feature connector |
JFC |
VRM connector |
VRM |
Power LED & keylock |
JFP pins 1 - 5 |
USER CONFIGURABLE SETTINGS | |||
Function |
Jumper |
Position | |
|
PS/2 mouse IRQ12 enabled |
JP11 |
Closed |
PS/2 mouse IRQ12 disabled |
JP11 |
Open |
DRAM CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
4MB |
(1) 1M x 36 |
NONE |
NONE |
NONE |
4MB |
NONE |
NONE |
(1) 1M x 36 |
NONE |
8MB |
(1) 2M x 36 |
NONE |
NONE |
NONE |
8MB |
NONE |
NONE |
(1) 2M x 36 |
NONE |
8MB |
(1) 1M x 36 |
(1) 1M x 36 |
NONE |
NONE |
8MB |
NONE |
NONE |
(1) 1M x 36 |
(1) 1M x 36 |
16MB |
(1) 4M x 36 |
NONE |
NONE |
NONE |
16MB |
NONE |
NONE |
(1) 4M x 36 |
NONE |
16MB |
(1) 2M x 36 |
(1) 2M x 36 |
NONE |
NONE |
16MB |
NONE |
NONE |
(1) 2M x 36 |
(1) 2M x 36 |
16MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
24MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
24MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
32MB |
(1) 8M x 36 |
NONE |
NONE |
NONE |
32MB |
NONE |
NONE |
(1) 8M x 36 |
NONE |
32MB |
(1) 4M x 36 |
(1) 4M x 36 |
NONE |
NONE |
32MB |
NONE |
NONE |
(1) 4M x 36 |
(1) 4M x 36 |
32MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
40MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
40MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
48MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
48MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
64MB |
(1) 16M x 36 |
NONE |
NONE |
NONE |
64MB |
NONE |
NONE |
(1) 16M x 36 |
NONE |
DRAM CONFIGURATION (CONT) | ||||
Size |
Bank 0 |
Bank 1 |
Bank 2 |
Bank 3 |
64MB |
(1) 8M x 36 |
(1) 8M x 36 |
NONE |
NONE |
64MB |
NONE |
NONE |
(1) 8M x 36 |
(1) 8M x 36 |
64MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
72MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
72MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
80MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
80MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
96MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
96MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
128MB |
(1) 32M x 36 |
NONE |
NONE |
NONE |
128MB |
NONE |
NONE |
(1) 32M x 36 |
NONE |
128MB |
(1) 16M x 36 |
(1) 16M x 36 |
NONE |
NONE |
128MB |
NONE |
NONE |
(1) 16M x 36 |
(1) 16M x 36 |
128MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
136MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
136MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
144MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
144MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
160MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
160MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
192MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
192MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
256MB |
(1) 32M x 36 |
(1) 32M x 36 |
NONE |
NONE |
256MB |
NONE |
NONE |
(1) 32M x 36 |
(1) 32M x 36 |
256MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
264MB |
(1) 1M x 36 |
(1) 1M x 36 |
(1) 32M x 36 |
(1) 32M x 36 |
264MB |
(1) 32M x 36 |
(1) 32M x 36 |
(1) 1M x 36 |
(1) 1M x 36 |
272MB |
(1) 2M x 36 |
(1) 2M x 36 |
(1) 32M x 36 |
(1) 32M x 36 |
272MB |
(1) 32M x 36 |
(1) 32M x 36 |
(1) 2M x 36 |
(1) 2M x 36 |
288MB |
(1) 4M x 36 |
(1) 4M x 36 |
(1) 32M x 36 |
(1) 32M x 36 |
288MB |
(1) 32M x 36 |
(1) 32M x 36 |
(1) 4M x 36 |
(1) 4M x 36 |
320MB |
(1) 8M x 36 |
(1) 8M x 36 |
(1) 32M x 36 |
(1) 32M x 36 |
320MB |
(1) 32M x 36 |
(1) 32M x 36 |
(1) 8M x 36 |
(1) 8M x 36 |
384MB |
(1) 16M x 36 |
(1) 16M x 36 |
(1) 32M x 36 |
(1) 32M x 36 |
384MB |
(1) 32M x 36 |
(1) 32M x 36 |
(1) 16M x 36 |
(1) 16M x 36 |
512MB |
(1) 32M x 36 |
(1) 32M x 36 |
(1) 32M x 36 |
(1) 32M x 36 |
CACHE CONFIGURATION | ||||
Size |
Bank 0 |
Bank 1 |
U13/U17 |
TAG |
256KB |
(4) 32K x 8 |
(4) 32K x 8 |
NONE |
(1) 8K or (1) 16K x 8 |
256KB |
NONE |
NONE |
(2) 32K x 32 |
(1) 8K or (1) 16K x 8 |
512KB (A) |
(4) 64K x 8 |
(4) 64K x 8 |
NONE |
(1) 16K x 8 |
512KB (B) |
(4) 64K x 8 |
(4) 64K x 8 |
NONE |
(1) 16K x 8 |
1MB |
(4) 128K x 8 |
(4) 128K x 8 |
NONE |
(1) 32K x 8 |
Note: U13 & U17 may not be present on all boards. |
CACHE JUMPER CONFIGURATION | ||
Size |
JS1 |
JS2 |
256KB |
pins 1 & 2 closed |
pins 2 & 3 closed |
512KB (A) |
pins 3 & 4 closed |
pins 3 & 4 closed |
512KB (B) |
pins 2 & 3 closed |
pins 2 & 3 closed |
1MB |
pins 2 & 3 closed |
pins 1 & 2 closed |
Note: 512KB (A) uses 128AK TAG chip and 512KB (B) uses 129AK TAG chip. |
CPU SPEED CONFIGURATION | ||||||
Speed |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
75MHz |
Off |
Off |
Off |
Off |
On |
On |
80MHz* |
Off |
Off |
Off |
On |
On |
On |
90MHz |
Off |
Off |
Off |
Off |
Off |
On |
100MHz |
Off |
Off |
Off |
Off |
Off |
Off |
120MHz |
Off |
On |
Off |
Off |
Off |
On |
120MHz* |
On |
Off |
Off |
On |
On |
On |
133MHz |
Off |
On |
Off |
Off |
Off |
Off |
Note: Speeds marked with an * are reserved for future CX M1 CPUs. |
CPU VOLTAGE CONFIGURATION | |
Voltage |
JV1 |
3.38v |
Closed |
3.52v |
Open |