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System Board Components
Figure 1 Motherboard Layout & Components
Table 2.
A
Auxiliary rear fan connector
V
Battery
B
CDROM ATAPI audio connector (not fitted)
W
Front chassis fan connector
C
Sigmatel audio codec 9221
X
BIOS Setup configuration jumper block
D
Front panel audio connector
Y
Firmware Hub (FWH)
E
Secondary PCI Express connectorx16/x4
Z
Chassis intrusion connector
F
Intel Giga bit Ethernet controller
AA
SATA RAID connectors Intel ICH7-R
G
PCI Express x16 bus add-in card connector
BB
Front panel USB connectors
H
Back panel connectors
CC
Auxiliary front panel power LED connector
I
+12V power connector (ATX12V) 4/8 way
DD
Front panel connector
J
Alternate power connector (not used)
EE
SCSI LED connector (optional)
K
Rear chassis fan connector
FF
Auxiliary power connector (not to be used to
power HDD’s optical drive’s etc
L
LGA775 processor socket
GG
SATA RAID controller Silicon Image
M
Intel 82955X MCH
HH
SATA RAID connectors Silicon Image
N
Processor fan connector
II
IEEE-1394a/b front panel connectors
O
Intel 82801GR I/O Controller Hub
(ICH7-R)
JJ
IEEE-1394a/b PHY component
P
DIMM Channel A sockets
KK
IEEE-1394a/b Link component
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