GF8200A is built with Nvidia MCP78S chipset. It supports HDMI 1.3 and video resolution up to 1920 x 1200. HDMI 1.3 Prior to Version 1.3, HDMI supported a clock rate of 165MHz or 4.95 Gbps, transferring 165 million 24-bit pixels per second. Introduced in 2006, HDMI 1.3 increased the rate to 340MHz (10.2 Gbps) to accommodate 2560x1440 HDTV resolution with pixels up to 48 bits, known as "deep color." HDMI also supports eight channels of 24-bit uncompressed audio at 192kHz. HDMI 1.3 uses two types of cables. HDMI Category 1 cables are rated for 720p and 1080i TVs. For higher resolutions

1, What is "DCT Unganged Mode" ?
 Answer :  DCT = "DRAM controller". For DDR products, DCT0 controls channel A DDR pins and DCT1 controls      channel B DDR pins. However, the processor may be configured:
(1) to behave as a single dual-channel DCT; this is called ganged mode;
(2) to behave as two single-channel DCTs; this is called unganged mode.

2, When use AM2+ CPU and 2 memory, for get best performance, follow setting is correct or not ? set "DCT Unganged Mode" at "Auto（Ganged Mode）" mode, plug-in memory in slot 3 and slot 4.
Answer : According to AMD's information, the unganged mode will get better performance than ganged mode.

3, When use AM2+ CPU and 1 memory, for get best performance, do we need to plug-in memory at slot 3 ?
Answer : Yes.

4, If use AM2 CPU, for get better performance, do we need to set "DCT Unganged Mode" at "UngangedMode" mode ?
Answer: AM2 CPU does not support this function.

Yes, this model is no problem to support these resolutions with BIOS (2009/2/6) and driver(V175.16) available at ECS web.  In addition to BIOS and driver, the monitor must be supported also.  

This problem can be solved either by “loading BIOS defaults” or setting “HT Frequency” of “Advanced Setup” in BIOS to [Auto] on this mainboard.

Yes, this model can support dual monitors by D-Sub and HDMI.
Please refer to the steps as below how to implement.
Steps,
1.Connect monitor to D-Sub ,
2.Install Windows OS ,
3.Install driver of MCP78 VGA ,
4.Connect the second monitor (HDMI) or LCD TV (HDMI) to onboard HDMI port ,
5.Choice "Dualview/Clone/Single display" of "nView Display Settings " .
Please refer to the below photos :

 

Please visit the following AMD website to confirm if your CPU is Black Edition CPU.

Please visit the following website for downloading the service BIOS which can fix the multiplier of the North bridge does not work issue ,then try to update it .
Download URL:
https://campaign.ecs.com.tw/support/faq_file/ECS/GF8200A.zip

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This board can support AMD Athlon™ II Quad-Core Processor 620.Please refer to the CPU support list from the following website.If your system works not very well,please try to update the latest BIOS.ACC(Advanced Clock Calibration) cannot be supported when installed with AMD Athlon II 620 because it is not Black Edition Processor.You can get more information of ACC from the General FAQ below.

CPU support list:
Please refer to Product page - CPU tag

BIOS download URL:
Please refer to Product page - Download tag

General FAQ:
http://www.ecs.com.tw/ECSWebSite/Support/Support_FAQ_Detail.aspx?MenuID=74&LanID=0&FAQID=24

There are four DIMM slots on GF8200A, for best performance and compatibility, we recommend that users install DIMMs in the sequence of DIMM3, DIMM4, DIMM1 and DIMM2. Please refer to the table below for information of dual channel memory.

This model supports four DDR2 slots with maximum memory size of 8GB.
Memory support:

• Dual-channel DDR2 1066 memory architecture
• 4 x 240-pin DDR2 DIMM socket support up to 8GB
• Accommodates four unbuffered DIMMs
• Support DDR2  *1066(AM2+)/800/667/533/400 DDR2 SDRAM

* Whether 1066MHz memory speed is supported depends on the CPU being used.

The Qualified Vendors List (QVL) have been tested and qualified for use with this motherboard.

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