Kaliffen123 :
Yes i am getting a kabylake is it good for sli? And i got a surround system do i just plug it to the reciver or do i need an onboard sound card.
Are you definite that you will do SLI? If so, then your only option is to get a
Z270-chipset motherboard (which is
more expensive and
intended for overclocking unlocked/"K" CPUs).
The other chipset motherboards (i.e.,
B250 and
H270) of the 7th-gen series
does not support SLI (including the motherboard I suggested above, as you did not mention SLI in your opening post).
The thing is, getting a Z270 motherboard gives you the opportunity to SLI (depending on the specific Z270 model), but, since you are getting a non-"K" CPU (which does
not overclock), you would end up paying more for the motherboard features you cannot use.
Logically, a Z270 motherboard is best paired with a "K" CPU (such as the i5-7600K or i7-7700K) to take advantage of the overclocking features. But this will bring up the cost more as these K CPUs are more expensive than the non-K version, plus, you need to buy an aftermarket cooler as "K" CPUs doesn't come with one out-of-the-box.
Generally (unless you have a specific purpose/use in mind), a single powerful GPU will be better than two less-powerful GPUs in SLI. The SLI setup is more power-consuming (need beefier PSU), more heat-generating (need better cooling system), more costly, and susceptible to incompatibilities in most games.
In any case, to answer your follow-up question directly, a suggested motherboard that supports SLI with good on-board Audio Codec (Realtek ALC S1220A 8-Channel High Definition) having 5x dedicated audio jacks input ports for separate speaker connections, is this:
PCPartPicker part list /
Price breakdown by merchant
Motherboard: Asus - PRIME Z270-A ATX LGA1151 Motherboard ($149.49 @ SuperBiiz)
Total: $149.49
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-06-18 02:27 EDT-0400
Note that most, if not all, motherboards today support 7.1-channel using their on-board/integrated sound card. Some motherboards only have 3x audio jacks (line in, line out, mic) while others have 5x (additional ports for sub-woofer, rear/front speakers). If you are a casual user/listener, no need to get a dedicated sound card (unless you are an audiophile or record/compose sounds/music professionally).
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