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Table 2. Intel Desktop Board DX79TO Components
Label Description
A Front panel audio header
B PCI Express x1 connector
C PCI Express x1 connector
D Speaker
E PCI bus connector
F PCI Express 3.0 x16 connector
G PCI Express x1 connector
H PCI Express 3.0 x16 connector
I Rear chassis fan header
J Battery
K Back panel connectors
L Processor fan header
M DIMM 1 socket
N DIMM 5 socket
O DIMM 2 socket
P DIMM 6 socket
Q Processor socket
R 12 V processor core voltage connector (2 x 4 pin)
S DIMM 8 socket
T DIMM 4 socket
U DIMM 7 socket
V DIMM 3 socket
W Main power connector (2 x 12 pin)
X Front chassis fan header
Y Serial ATA connectors (6 Gb/s)
Z Serial ATA connectors (3 Gb/s)
AA Intel X79 Express Chipset
BB USB 2.0 front panel headers
CC Back panel CIR transmitter (output) header
DD BIOS configuration jumper block
EE Power fault LED
FF Alternate front panel power LED header
GG Front panel CIR receiver (input) header
HH Voltage measurement test points
II Front panel header
JJ POST code LED display
KK IEEE 1394a header
LL Reset button
MM Power button
NN Chassis intrusion header
OO Auxiliary chassis fan header
PP System initialization/status LEDs