I have Gigabyte 970A-D3P rev 1.0 motherboard. It supports 7.1 audio output. So I got myself a Creative 4.1 sound system. When testing the speakers, all 4 speakers were working. But when Iam trying to play music or gaming or anything of that sort.. Only the front two speakers are working and the rest two arent. I will point out Iam using windows 10 64bit and Gigabyte hasnt provided with the latest Windows 10 Realtek Drivers so I have to use the VIA HD Audio for this.. How to set this up? please help..