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Intel DZ77GA-70K User Manual

Intel DZ77GA-70K
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Technical Reference
59
2.2.2.3 Power Supply Connectors
The board has the following power supply connectors:
Main powera 2 x 12 connector. This connector is compatible with 2 x 10
connectors previously used on Intel Desktop boards. The board supports the use of
ATX12V power supplies with either 2 x 10 or 2 x 12 main power cables. When
using a power supply with a 2 x 10 main power cable, attach that cable to the main
power connector, leaving pins 11, 12, 23, and 24 unconnected.
Processor core powera 2 x 4 connector. This connector provides power
directly to the processor voltage regulator and must always be used. Failure to do
so will prevent the board from booting.
Table 26. Processor Core Power Connector
Pin Signal Name Pin Signal Name
1 Ground 2 +12 V
3 Ground 4 +12 V
5 Ground 6 +12 V
7 Ground 8 +12 V
Table 27. Main Power Connector
Pin Signal Name Pin Signal Name
1 +3.3 V 13 +3.3 V
2 +3.3 V 14 -12 V
3 Ground 15 Ground
4 +5 V 16 PS-ON# (power supply remote on/off)
5 Ground 17 Ground
6 +5 V 18 Ground
7 Ground 19 Ground
8 PWRGD (Power Good) 20 No connect
9 +5 V (Standby) 21 +5 V
10 +12 V 22 +5 V
11 +12 V
(Note)
23 +5 V
(Note)
12 2 x 12 connector detect
(Note)
24 Ground
(Note)
Note: When using a 2 x 10 power supply cable, this pin will be unconnected.
For information about Refer to
Power supply considerations Section 2.5.1 on page 66

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Intel DZ77GA-70K Specifications

General IconGeneral
Form FactorATX
ChipsetIntel Z77
SocketLGA 1155
Memory Slots4
Max Memory32 GB
SATA 6Gb/s Ports4
SATA 3Gb/s Ports4
USB 3.0 Ports4
USB 2.0 Ports8
CrossFire SupportYes
SLI SupportYes
Memory SpeedDDR3 1600/1333/1066
PCI Express x16 Slots2
PCI Express x1 Slots2
LANIntel 82579V Gigabit Ethernet
Audio7.1 Channel High Definition Audio
RAID SupportRAID 0, 1, 5, 10
PCI Slots2

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