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Chapter 2: Hardware information
2.2 Motherboard layout
Figure 2-2 Motherboard Layout
CHA_FAN
AUX+12V
24.4cm (9.60in)
30.5cm (12.0in)
®
PANEL
FLOPPY
SECONDARY IDE
PRIMARY IDE
P4B-E
CR2032 3V
Lithium Cell
CMOS Power
ATX Power Connector
ATX12V
Intel 845
Memory
Controller
Hub (MCH)
AUX
CPU_FAN
USB23
CD
LED1
COM1
PARALLEL PORT
COM2
MODEM
DIMM Socket 1 (64/72-bit, 168-pin module)
0 1
DIMM Socket 2 (64/72-bit, 168-pin module)
2 3
DIMM Socket 3 (64/72-bit, 168-pin module)
4 5
GAME_AUDIO
Mic
In
Line
Out
Line
In
HDDLED
C-Media
CMI8738 6CH
Audio Controller
Super
I/O
SPDIF_C
OVER_VOLT
CNRUSB0
CNRUSB1
IR_CON
KBPWR USBPWR01
BCS2
BCS1
HPHONE
INT_MIC
SMARTCON
PS/2
T: Mouse
B: Keyboard
PWR_FAN
CNR_SLOT
JEN
AFPANEL
MS SD
USBPWR23
CHAS1
ASUS
ASIC
TRPWR
SPEECH
RAID_SEL
PCI1
PCI2
PCI3
PCI4
PCI5
PCI6
Intel I/O
Controller
Hub
(ICH2)
RAID_IDE2
4Mbit
Firmware
Hub
SWITCH
ASUS
ASIC
with
Hardware
Monitor
PROMISE
IDE
ATA-100
RAID O/I
Controller
Winbond
SMART
CLR_CMOS
AAPANEL
RAID_IDE1
LED2
RAID_EN
LAN_EN
RJ-45
Top:
USB1
USB2
Bottom:
Socket 478
Accelerated Graphics Port (AGP)
The audio CODEC, external GAME/AUDIO connectors, internal audio
connectors, LAN features, and RAID features are optional
components. These are grayed out in the above motherboard layout.
For System Integrators:
The SD and MS connectors may or may not be mounted depending on
required specifications.