Lvds Panel Type; High Definition Audio; Default Cpu Frequency Mhz; Thermal Management - Seco Qseven QUADMO747-E6 Series User Manual

QUADMO747-E6xx
User Manual - Rev. First Edition: 1.0 - Last Edition: 1.2- Author: S.B. - Reviewed by G.M.
Please notice that using SDVO + LVDS configuration, then primary video output will be SDVO.
This means that if you intend to use an LVDS display as a primary video, then, during system boot
up, there will not be anything displayed on LVDS screen, until video drivers of installed O.S.
becomes operating.
So, if both LVDS and SDVO output are needed, but it is necessary to display something on the
LVDS panel during system boot up, then set "Internal Video boot on" to LVDS. O.S. video drivers
will be able to manage the dual display in any case.
NOTICE FOR WINDOWS 7 USERS: a special notice must be done for users of Windows 7 O.S.
that intends to use an LVDS display. In this case, it is important to check the design of the Carrier
Board.
If on the Carrier board there is an EEPROM with the adequate EDID for the LVDS, then everything
works fine.
In case the external EDID is not present, then Windows 7 will set the resolution to the first panel
indicated inside the video driver (usually, 640x480), and it is not possible to change it. Therefore, in
that case, it is necessary to build a custom video driver, by using Intel EMGD driver toolkit.

4.4.4 LVDS Panel Type

This option allows defining the resolution and the colour bit depth of video output for the
connection of LCD displays (LFP). Possible choices are:

640 x 480@ 18

800 x 480 @ 18

800 x 600 @ 18

1024 x 600 @ 18

1024 x 768 @ 18

1280 x 768 @ 18

1366 x 768 @ 18

640 x 480@ 24

800 x 480 @ 24

800 x 600 @ 24

1024 x 600 @ 24

1024 x 768 @ 24

1280 x 768 @ 24

1366 x 768 @ 24

Custom
Custom resolution is a panel resolution that can be customised in Video BIOS. If not changed, this
value corresponds to a resolution of 1280x800.

4.4.5 High Definition Audio

This option allows you to enable or disable select the HD audio interface coming out from Intel®
Atom™ E6xx CPU.

4.4.6 Default CPU frequency MHz

It allows the selection of default operative frequency (MHz) to be used for the CPU. Since the
frequency depends on the processor installed, it is not possible to state here the values that will be
offered. CPU frequency, like Thermal management mode, can be varied even by the O.S.,
according to ACPI tables, CPU C-States and Speed Step management

4.4.7 Thermal Management

This option describes the kind of behaviour that the board must observe in case of processor
overheating. Two different types of thermal management are possible, TM1 and TM2, as described
in specifications of Intel
® Atom™ E6xx processors.
Copyright © 2012 SECO s.r.l.
QUADMO747-E6xx
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