1-2 P55-IT
Keyboard BIOS
PCI#1
PCI#2
PCI#3
PCI#4
M 4
M 3
M 2
M 1
1 2 1 2
COM2
COM1
PRINTER
FDD CONN.
82371
Figure 1-1
KEYLOCK
SPK.
RESET
G-LED HD-LED SLEEP
TB-SW TB-LED
82438
82438
<
<
<
<
U34
U37
U41
U42
<
<
<
<
U28
U29
U32
U33
P55-IT Layout
K/B
CONN.
PS/2
MOUSE
Socket 7
Intel
82437
RTC
<
82438
82438
BIOS
VRM Socket
SRAM Module
J1
J2
J3 J4
J5
J6
JP5 JP14
JP9
JP7
1
J7
+12V
GND
GND
JP6
1
<
TAG SRAM (U24)
JP6
1
JP1
1
Intel
IDE 2 CONN.
IDE 1 CONN.
JP2
1
JP3
39 40
JPS2
J23
1
JP15
37C665
SMC
JP12
1
1
J25
J24
Power Conn.
J10
5
1
1
1
1
1
JPS1
1
81
160
80
BANK0
BANK1
+
+
+
1