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Question
There is just a PS/2 port for keyboard or mouse. How can I use both of them?


Answer
There is just a PS/2 mouse/keyboard port on this motherboard, the left PS/2 port for keyboard, the right PS/2 port for mouse, it just allows connect one PS/2 keyboard or mouse to this port, the keyboard or mouse will be detected automatically.




Question
Can I install an external PCI Express graphics card and use it in parallel with Intel graphics?


Answer
According to the datasheet of Intel 5 series chipset, Intel graphics cannot be used along with an external PCI Express graphics controller. Installing a PCI Express graphics controller will disable Intel graphics. Please refer to the following website for more information about Multiple Display.

http://www.intel.com/support/graphics/sb/CS-031040.htm#8



Question
Should I enable C-STATE in BIOS Setup for Intel® Turbo Boost feature?


Answer
Yes, it is recommended. When you attempt to support Turbo Boost Technology with Intel® Turbo Boost supporting processors, it is suggested to enable C-State in BIOS to obtain better performance if it is available.
For example,
One particular processor may allow up to two frequency steps (266.66 MHz) when just one core is active and one frequency step (133.33 MHz) when two or more cores are active. Therefore, higher deep C-state residency ("C3" or "C6") on some cores will generally result in increased core frequency on the active cores.


- Refer to Intel® Turbo Boost Technology
http://www.intel.com/technology/turboboost/index.htm?iid=tech_product+tb




Question
I got a problem on 11/26/2009 BIOS, the POST screen shows "The IMC is operating with DDR3 800" when installing DDR3 1333Mhz RAM? How to fix it?


Answer
This is an incorrect string showed on POST, actually the memory speed is opreating with DDR3 1333Mhz,  To fix the issue, you can update the BIOS to version 05/19/2010. Then you will get a correct string as "The IMC is operating with DDR3 1333" on POST.  Please visit the following website to download the BIOS.
http://download.ecs.com.tw/dlfileecs/faq_file/ECS/H5M519.zip




Question
When I power on my H55H-M MB, I get "no display" & there are some short beeps. What is wrong?


Answer
Please make sure your CPU is Intel Core i5/i3 series with "Intel HD Graphics" as follows.



If your processor is not one of these 7 models, you must install a PCI-E graphics card to get the display output. Otherwise, you may receive "no display" on H55H-M.
For more information about this behavior, please check out the Intel website below.

http://www.intel.com/support/processors/sb/CS-031174.htm



Question
Does the H55H-M V1.0 support the HDMI sound output through DVI connector, if DVI-HDMI adapter will be used?


Answer
The H55H-M's DVI port can output the HDMI (Video + Audio) data by the DVI to HDMI adapter.
Below picture of the DVI to HDMI adapter for reference.


How to use and setting onboard HDMI audio?
1. Please enter "CMOS Setup Utility/Advanced Chipset Setup" to "Enabled" HDMI Audio function as below picture.


2. Select "Digital Output Device (HDMI)" of playback device under Windows Control Panel as below picture.
(Please note that below Sound setting under Vista OS for example.)




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