1-2 P55-TH
Keyboard BIOS
PCI#1
PCI#3
M 4
M 3
M 2
M 1
1 2 1 2
PRINTER
FDD CONN.
Figure 1-1
Socket 7
SRAM Module
IDE 2 CONN.
IDE 1 CONN.
39 40
Power Conn.
1
1
1
1
1
81
160
80
BANK1
TAG SRAM (U20)
<
J7
+12V
GND
GND
<
BIOS
COM1
P55-TH Layout
K/B
CONN.
U31 U30
82438
BANK0
PCI#2
JP5
1
+
JP12
G-LED
RESET
SLEEP
KEYLOCK
TB-LED
J2 J3
J6
J1
+J44
TXC
J25
1
3
1
5
COM2
CPU FAN.
PCI#4
SMC
37C669
PIIX3
82371
intel
32K*32
JP14
RTC
Q1
Q2
1
3
JP8
JP6
+
1
3
JP11
JP10
J10
1 14
13 26
JP1
32K*32
3
1
JP3
1
J24
SPKR.
J33
JP15
J13 J14
J11
J15