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8
7
COMB
(N/A)
BU1
19
[18]
RI1-
RY1
18
[18]
CTS1-
RY2
17
[18]
DSR1-
RY3
16
[18]
RTS1-
DA1
15
[18]
DTR1-
DA2
14
[18]
RXD1
RY4
13
[18]
TXD1
DA3
12
[18]
DCD1-
RY5
11
GND
D
10
-12V
-12V
BBC1
0.1u/4/Y5V/16V/Z/X
GD75232/TSSOP20/X
RING IN
Q7
MMBT2222A/SOT23/600mA/40/X
-RI
NRIA-
R100
2
SOT23
3
1
75K/4/1/X
R98
8.2K/4/X
D1 BAT54C/SOT23/200mA/X
C
BCN2
NRIA-
7
8
NCTSA-
5
6
NDSRA-
3
4
NRTSA-
1
2
180p/8P4C/6/NPO/50V/K/X
NDCDA-
NSOUTA
BCN1
NRTSA-
NDTRA-
NRIA-
7
8
NSINA
5
6
NSOUTA
3
4
NDCDA-
1
2
BH/2*5K10/IV/2.54/VA/COM/X
180p/8P4C/6/NPO/50V/K/X
PLACE NEAR COM CONNECTOR
B
A
8
7
6
DUAL BIOS
NRIA-
2
RA1
NCTSA-
3
RA2
NDSRA-
4
RA3
NRTSA-
5
DY1
NDTRA-
6
DY2
NSINA
7
RA4
NSOUTA
8
DY3
NDCDA-
9
RA5
20
VCC
5V
1
+12V
12V
BBC3
BBC2
0.1u/4/Y5V/16V/Z/X
0.1u/4/Y5V/16V/Z/X
C161
10p/4/NPO/50V/J/X
-RI [13]
F_COM-HS
COMA
NSINA
1
2
NDTRA-
3
4
NDSRA-
5
6
NCTSA-
7
8
9
10
6
5
4
-ICH_SPI_CS
R890
22/4/X
M_BIOS
-ICH_SPI_CS1
R495
22/4
1
8
CS#
VDD
SPI_MISO
2
7
SO
HOLD#
-SPI_WP0
3
6
WP#
SCK
4
5
VSS
SI
8M/SPI/SO8/200mil/S
-PROHOT
+12V
R205
10K/4/1
RS1
100K/1/4/S
CLOSE PWM HOT MOSFET
5
4
3
2
MOSI pull up to enable iTPM , floating to disable
ICH_SPI_MOSI
[13]
ICH_SPI_MOSI
-ICH_SPI_CS
[13]
-ICH_SPI_CS
-SPI_HOLD0
VCC3
-SPI_HOLD_ME
-ICH_SPI_CS1
[13]
-ICH_SPI_CS1
R498
0/4/SHT/M/X
BC192
-SPI_WP0
1u/4/X5R/6.3V/K
ICH_SPI_MISO
[13]
ICH_SPI_MISO
-SPI_WP_ME
-SPI_HOLD0
-SPI_HOLD0 [18]
ICH_SPI_CLK
[12,17]
-GNT0
ICH_SPI_MOSI
[12,17]
-GNT1
C144
10p/4/NPO/50V/J/X
Default int pull up
SPI_MISO
R456
r1.0 DG;0.7 CRB
BOOT
GNT1
DEVICE
LPC
PCI
SPI
1 means floating
0 means PD 1K
need to check which
is right
IC8SO-SOCKET
deasserted at 116 degree
RS2 CLOSE CPU VR MOSFET
R208
35.7K/4/1
+12V
-PROCHOT
R212
Q19
D
604/4/1
2N7002/SOT23/25pF/5
G
S
TSM_5
U1A
3
+
TSM_7
SOT23
1
TSM_6
-THERM
2
-
R? CLOSE Q32
LM358DR/SO8
Q18
D
R216
2N7002/SOT23/25pF/5
1K/4/1
G
S
C88
SOT23
0.1u/4/X7R/16V/K/X
Gigabyte Technology
Title
COM & PROHOT/Dynamic O.C.
Size
Document Number
GA-H55M-S2
Custom
Date:
Tuesday, October 05, 2010
3
2
1
VCC3
R454
8.2K/4/X
R496
8.2K/4/X
R457
8.2K/4/X
R886
8.2K/4
R887
8.2K/4/X
VCC3
RN15
D
1
2
3
4
5
6
7
8
1K/8P4R/4
R78
1K/4/1/X
R76
1K/4/1/X
22/4
ICH_SPI_MISO [13]
GNT0
0
0
0
1
1
1
C
B
-PROCHOT [4,26]
-THERM [18]
A
Rev
1.3
Sheet
19
of
31
1
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