Intel Desktop Board DH55HC Product Guide

Figure 2. LAN Connector LEDs

Table 3. LAN Connector LEDs

LED

LED Color

LED State

Indicates

 

 

 

 

A (Link/Activity)

Green

Off

LAN link is not established

 

 

 

 

 

 

On

LAN link is established

 

 

 

 

 

 

Blinking

LAN activity is occurring

 

 

 

 

B (Link Speed)

N/A

Off

10 Mb/s data rate

 

 

 

 

 

Green

On

100 Mb/s data rate

 

 

 

 

 

Yellow

On

1000 Mb/s data rate

 

 

 

 

USB 2.0 Support

The board supports up to twelve USB 2.0 ports provided by two EHCI host controllers in the PCH that allow the use of EHCI-compatible drivers.

The port arrangement is as follows:

Six ports via stacked back panel connectors

Six front panel ports via three dual-port internal headers; one header supports an Intel Z-U130 USB Solid-State Drive (or compatible device)

USB 2.0 support requires both an operating system and drivers that fully support USB 2.0 transfer rates.

Serial ATA Support

The board provides six internal SATA connectors through the PCH, four for internal storage (black connectors) and two for internal as well as external SATA (eSATA) storage (red connectors).

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Intel DH55HC manual USB 2.0 Support, Serial ATA Support, LED Color LED State Indicates