Intel DZ77GA-70K User Manual

Intel Desktop Board DZ77GA-70K Technical Product Specification
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2.2.2.4 Front Panel Header
This section describes the functions of the front panel header. Table 28 lists the signal
names of the front panel header. Figure 15 is a connection diagram for the front panel
header.
Table 28. Front Panel Header
Pin Signal
In/
Out Description Pin Signal
In/
Out Description
Hard Drive Activity LED Power LED
1 HD_PWR Out Hard disk LED
pull-up to +5 V
2 HDR_BLNK_GRN Out Front panel green
LED
3 HDA# Out Hard disk active
LED
4 HDR_BLNK_YEL Out Front panel yellow
LED
Reset Switch On/Off Switch
5 Ground Ground 6 FPBUT_IN In Power switch
7 FP_RESET# In Reset switch 8 Ground Ground
Power Not Connected
9 +5 V Power 10 N/C Not connected
Figure 15. Connection Diagram for Front Panel Header
2.2.2.4.1 Hard Drive Activity LED Header
Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is
being read from or written to a hard drive. Proper LED function requires a SATA hard
drive or optical drive connected to an onboard SATA connector.

Intel DZ77GA-70K Specifications

General

Form Factor	ATX
Chipset	Intel Z77
Socket	LGA 1155
Memory Slots	4
Max Memory	32 GB
SATA 6Gb/s Ports	4
SATA 3Gb/s Ports	4
USB 3.0 Ports	4
USB 2.0 Ports	8
CrossFire Support	Yes
SLI Support	Yes
Memory Speed	DDR3 1600/1333/1066
PCI Express x16 Slots	2
PCI Express x1 Slots	2
LAN	Intel 82579V Gigabit Ethernet
Audio	7.1 Channel High Definition Audio
RAID Support	RAID 0, 1, 5, 10
PCI Slots	2