2 motherboard overview, 1 motherboard layout, 2 layout contents – Asus P7H55-M SI User Manual
Page 12: Motherboard overview -2 1.2.1, Motherboard layout -2, Layout contents -2, Place this side towards the rear of the chassis, Chapter 1: product introduction 1-2

1.2
Motherboard overview
1.2.1
Motherboard layout
Place eight screws into the holes indicated by circles to secure the motherboard to the
chassis. DO NOT overtighten the screws! Doing so can damage the motherboard.
Ensure that you install the motherboard into the chassis in the correct orientation. The edge
with external ports goes to the rear part of the chassis.
1.2.2
Layout contents
Connectors/Jumpers/Slots/LED
Page Connectors/Jumpers/Slots/LED
Page
1. CPU and Chassis fan connectors (4-pin CPU_FAN,
3-pin CHA_FAN)
1-12 10. USB connectors (10-1 pin USB78, USB910,
USB1112)
1-10
2. ATX power connectors (24-pin EATXPWR, 4-pin
ATX12V)
1-13 11. Onboard LED
1-1
3. Serial port connectors (10-1 pin COM2)
1-16 12. Clear RTC RAM (3-pin CLRTC)
1-8
4. Intel
®
CPU socket
13. Chassis intrusion connector (4-1 pin
CHASSIS)
1-12
5. DDR3 DIMM sockets
1-3 14. Floppy disk drive connector (34-1 pin
FLOPPY)
1-15
6. TPM connector (20-1 pin TPM)
1-14 15. LPT connector (26-1 pin LPT)
1-16
7. IDE connector (40-1 pin PRI_IDE)
1-17 16. Digital audio connector (4-1 pin
SPDIF_OUT)
1-11
8. Serial ATA connectors (7-pin SATA1-6)
1-11 17. Front panel audio connector (10-1 pin AAFP) 1-15
9. System panel connector (10-1 pin F_PANEL)
1-14
Place this side towards
the rear of the chassis.
P7H55-M SI
FLOPPY
PCIEX16
PCIEX1_1
PCI2
PCI1
USB1112 USB910
USB78
AAFP
ATX12V
EATXPW
R
CPU_FAN
Lithium Cell
CMOS Power
Super
I/O
VIA
VT1708S
RTL
8112L
IC
S
9LRS95
4
KBMS
HDMI
COM1
8Mb
BIOS
SB_PWR
CLRTC
CHASSIS
24.4cm(9.6in)
24.4cm(9.6in)
Intel
®
GMA4500
DDR3 DIMM_B2 (64bit, 240-pin module
)
DDR3 DIMM_B1 (64bit, 240-pin module
)
DDR3 DIMM_A2 (64bit, 240-pin module
)
DDR3 DIMM_A1 (64bit, 240-pin module
)
SATA1 SATA2
SATA3 SATA4
SATA5 SATA6
DV
I
AUDIO
VG
A
LAN1_USB12
USB3_6
CHA_FAN
SPDIF_OUT
LGA1156
LPT
F_PANEL
PRI_IDE
TP
M
COM2
2
3
4
1
1
5
11
10
12
13
14
15
16
17
8
2
7
6
9
Chapter 1: Product introduction
1-2