Graphics Interface - Kontron COMe-mSP1 User Manual

4.18

Graphics Interface

The COMe-mSP1 uses the graphics accelerator GMA500 with 200MHz GPU clock integrated in the Intel® System Controller
Hub (US15W), which delivers shader-based technologies and high-performance 2D, 3D and video capabilities. The
GMA500 graphics engine supports a variety of LCD panels with single clock, color depths of 18/24 bit and resolutions up
to WXGA (1366×768). The maximum supported pixelclock of the system controller hub is 112 MHz.
Hardware video decode acceleration relieves the decode burden from the processor and reduces the power consumption of
the system. Full hardware acceleration of H.264, MPEG2, VC1 and WMV9 eliminates the need of a software codec and
offloads the CPU.
The graphic adapter uses the onboard RAM as graphic memory. The preallocated memory is defined through bios settings.
Possible settings are:
» 1MB
» 4MB
» 8MB
The total amount of graphics memory in the operating system depends on the size of system memory and the used driver
settings. The graphics media accelerator driver GMA uses DVMT to manage allocating of system memory according to the
needs of running applications. The Intel® Embedded Graphics Driver IEGD allocates the maximum of graphics memory
depending on system memory and driver settings.
Physical Memory Preallocated Memory in BIOS Setup
512MB 1MB
512MB 4MB
512MB 8MB
1024MB 1MB
1024MB 4MB
1024MB 8MB
For memory allocation according to the table above BIOS revision NOW1R112 or newer is
recommended
When using 1MB Preallocated Memory an Operating Systems without active GMA or IEGD
may have problems to display a screen (e.g. during WinXP installation).
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Maximum Graphics Memory with GMA Driver
127MB
126MB
125MB
255MB
254MB
253MB
COMe-mSP1 / Features and Interfaces
Maximum Graphics Memory with IEGD
352MB
352MB
352MB
352MB
352MB
352MB