Intel DH55HC User Manual

Technical Reference
43
Table 17. Front Panel USB Header (with Intel Z-U130 USB Solid-State Drive,
or Compatible Device, Support)
Pin Signal Name Pin Signal Name
1 +5 VDC 2 +5 VDC
3 D− 4 D−
5 D+ 6 D+
7 Ground 8 Ground
9 KEY (no pin) 10 LED#
Table 18. SATA Connectors
Pin Signal Name
1 Ground
2 TXP
3 TXN
4 Ground
5 RXN
6 RXP
7 Ground
Table 19. Chassis Intrusion Header
Pin Signal Name
1 Intruder#
2 Ground
Table 20. Processor (4-Pin) Fan Header
Pin Signal Name
1 Ground
2 +12 V
3 FAN_TACH
4 FAN_CONTROL
Table 21. Front and Rear Chassis Fan Headers
Pin 4-Wire Support Pin 3-Wire Support
1 Ground 3 Ground
2 +12 V 2 FAN_POWER
3 FAN_TACH 1 FAN_TACH
4 FAN_CONTROL N/A N/A

Intel DH55HC Specifications

General

Form Factor	MicroATX
Socket	LGA 1156
Memory Type	DDR3
Memory Slots	4
Max Memory	16 GB
PCI Express x16	1
PCIe 2.0 x1 Slots	2
PCI Slots	1
VGA	1
DVI-D	1
HDMI	1
Audio Codec	Realtek ALC888S
Chipset	Intel H55 Express
Memory Standard	DDR3 1333/1066
SATA Ports	6
USB Ports	12 x USB 2.0
Audio	Realtek ALC888S
LAN	Intel 82578DC Gigabit Ethernet Controller