Intel DH55TC User Manual

Product Description
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1.7.1.3 Digital Visual Interface (DVI-D)
The DVI-D port supports digital DVI displays. The maximum supported resolution is
1920 x 1200 at 60 Hz refresh (WUXGA). The DVI-D port is compliant with the DVI 1.0
specification.
The DVI-D port is only enabled for POST when there are no monitors attached to the
VGA or HDMI connectors.
1.7.2 PCI Express x16 Graphics
The Intel Core i7, Intel Core i5, Intel Core i3, and Intel Pentium processors in an
LGA1156 socket support discrete add in graphics cards via the PCI Express 2.0 x16
graphics connector:
• Supports PCI Express GEN2 frequency of 2.5 GHz resulting in 5.0 Gb/s each
direction (500 MB/s) per lane. Maximum theoretical bandwidth on interface is
8 GB/s in each direction, simultaneously, when operating in x16 mode.
• Supports PCI Express GEN1 frequency of 1.25 GHz resulting in 2.5 Gb/s each
direction (250 MB/s) per lane. Maximum theoretical bandwidth on interface is
4 GB/s in each direction, simultaneously, when operating in x16 mode.
For information about Refer to
PCI Express technology http://www.pcisig.com
1.8 USB
The board supports up to twelve USB 2.0 ports through two EHCI host controllers on
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)
For information about Refer to
The location of the USB connectors on the back panel Figure 9, page 38
The location of the front panel USB headers Figure 10, page 39

Intel DH55TC Specifications

Add-in Card Connectors

PCI Express 2.0 x16 transfer speed	8 GB/s
PCI Express 2.0 x1 transfer speed	250 MB/s
Conventional PCI connectors count	1

Front Panel USB Headers

USB 2.0 specification compliance	Yes
+5 V DC power on USB headers	Fused
USB Header 2 Pin 10 routing	HDD LED