GA-586AL
________________________________________________________________
________________________________________________________________
12
separate.
3.2. MAINBOARD LAYOUT
×
Figure 3.1
Ø
BIOS
RTC
DS12887
27C010
ISA SLOT 1
ISA SLOT 2
ISA SLOT 3
ISA SLOT 4
PCI SLOT #3
PCI SLOT #2
PCI SLOT #1 & I/O
BIOS
KBD
CPU
66 MHz
60 MHz
JP21
BANK 0
BANK 1
72 PIN SIMM MODULE
72 PIN SIMM MODULE
+
SOCKET 4
Pentium
JP3
+12V
Second
Cache
P5T
P1
P3
BANK 2
72 PIN SIMM MODULE
U25
1
1
1
1
1
1
1
72
72
72
72
72
72
72
3
1
1
JP2
JP1
JP17
JP20
JP19
JP18
JP16
1
1
1
SIMM1
SIMM6
1
1
1
LPT PORT
CN6
CN4
FLOPPY PORT
IDE1
IDE2
CN5
CN3
JP5
HD-LED
JP14
JP13
CN1
CN2
GA - 586AL
REV.2
COM 1/3
COM 2/4
+
+
3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS
t
P1: Keyboard Connector
Pin No.
Function
1
Key Clock.
2
Key Data.
3
NC.
4
VCC (+5V).
5
GND.
t
P2: Power Connector
Pin No.
Function
1
Power Good signal
2,10,11,12
VCC (+5V)
3
+12V
4
-12V
5,6,7,8
GND
9
-5V
