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Please bear in mind that this product has reached its End of Interactive Support so Intel no longer provides interactive support for this product via telephone, chat or e-mail. I recommend you to review the information available on the datasheet posted here:
from what I can see the dual graphics controller feature that you can see is somehow a customization that has been implemented by the motherboard manufacturer itself, no something that has been designed natively for this controller.
Thank you. I checked the ICs on the motherboard by eyes but i found only one 82815 . i do not know maybe i am mistaken.