This soundbar was new in open box and it was quite cheap, so I picked it up. It doesn't have an optical port, but it does have HDMI with ARC. I'd like to be able to connect it to my PC to see if it works, so my question is just that; can I connect this via HDMI and expect sound? I'd simply give it a try, but the way the manual reads (besides horrible), it doesn't seem like you should connect it while anything is turned on. It makes me slightly apprehensive that way. The motherboard is P8Z68-V Pro/GEN3. Thanks.