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System Board Components
Figure 1 Motherboard Layout & Components
Table 2.
A
PCI Express x1 bus add-in card connectors R
Power connector (24 way ATX2.2)
B
Realtek ALC860 audio codec
S
Diskette drive connector
C
Front panel audio connector
T
Parallel ATE IDE connector
D
PCI Conventional bus add-in card
connectors U
Battery
E
Marvell Yukon 88E8050 PCI Express
Gigabit Ethernet Controller
V
Chassis intrusion connector
F
PCI Express x16 bus add-in card connector W
BIOS Setup configuration jumper block
G
Rear chassis fan connector
X
4 Mbit Firmware Hub (FWH)
H
Back panel connectors
Y
Front chassis fan connector
I
Alternate power connector
(not used)
Z Serial
ATA
connectors
J
+12V power connector (ATX12V)
AA
Auxiliary front panel power LED
connector
K
LGA775 processor socket
BB
Front panel connector
L
Hardware monitoring and fan control ASIC
CC
SCSI LED connector (optional)
M
Processor fan connector
DD
Auxiliary power connector (not to be
used to power HDD’s optical drive’s etc
N
Intel 82925XE MCH
EE
Front panel USB connectors
O
DIMM Channel A sockets
FF
Intel 82801FR I/O Controller Hub
(ICH6-R)
P
DIMM Channel B sockets
GG
Speaker
Q
I/O controller
HH
Auxiliary rear fan connector
