Is this a good motherboard for this build?

changed a few bits.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor ($465.00 @ Shopping Express)
CPU Cooler: NZXT - Kraken X62 Rev 2 98.2 CFM Liquid CPU Cooler ($239.00 @ PCCaseGear)
Motherboard: Gigabyte - GA-Z270X-Gaming 5 ATX LGA1151 Motherboard ($275.00 @ Umart)
Memory: G.Skill - Trident Z RGB 16GB (2 x 8GB) DDR4-3000 Memory ($225.00 @ Umart)
Storage: Samsung - 960 EVO 500GB M.2-2280 Solid State Drive ($316.00 @ Shopping Express)
Storage: Seagate - Barracuda 3TB 3.5" 7200RPM Internal Hard Drive ($128.00 @ Shopping Express)
Video Card: EVGA - GeForce GTX 1080 Ti 11GB SC Black Edition Video Card ($1129.00 @ Umart)
Case: Phanteks - Enthoo Pro ATX Full Tower Case ($139.00 @ PCCaseGear)
Power Supply: EVGA - SuperNOVA G2 750W 80+ Gold Certified Fully-Modular ATX Power Supply ($149.00 @ Umart)
Operating System: Microsoft - Windows 10 Home OEM 64-bit
Sound Card: Creative Labs - Sound Blaster Zx 24-bit 192 KHz Sound Card
Case Fan: Cooler Master - SickleFlow (Blue) 69.0 CFM 120mm Fan
Monitor: Asus - ROG Swift PG258Q 24.5" 1920x1080 240Hz Monitor ($799.00 @ Mwave Australia)
Keyboard: Razer - BlackWidow Chroma V2 Wired Gaming Keyboard ($218.77 @ Skycomp Technology)
Mouse: FinalMouse - Tournament Pro 2016 Wired Optical Mouse
Total: $4082.77
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-08-04 18:59 AEST+1000
 
Solution

maxalge

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better use of your money

PCPartPicker part list: https://au.pcpartpicker.com/list/MbgpPs
Price breakdown by merchant: https://au.pcpartpicker.com/list/MbgpPs/by_merchant/

CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor ($465.00 @ Shopping Express)
CPU Cooler: CRYORIG - H5 Ultimate 76.0 CFM CPU Cooler ($69.00 @ PCCaseGear)
Motherboard: Gigabyte - GA-Z270-Gaming K3 ATX LGA1151 Motherboard ($215.00 @ Umart)
Memory: G.Skill - FORTIS 16GB (2 x 8GB) DDR4-2400 Memory ($182.00 @ IJK)
Storage: Samsung - 850 EVO-Series 500GB 2.5" Solid State Drive ($231.00 @ Shopping Express)
Storage: Western Digital - Blue 4TB 3.5" 5400RPM Internal Hard Drive ($159.00 @ Shopping Express)
Video Card: EVGA - GeForce GTX 1080 Ti 11GB SC2 Video Card ($1099.00 @ Umart)
Case: Phanteks - Enthoo Pro ATX Full Tower Case ($139.00 @ PCCaseGear)
Power Supply: SeaSonic - 650W 80+ Gold Certified Semi-Modular ATX Power Supply ($146.30 @ Skycomp Technology)
Operating System: Microsoft - Windows 10 Home OEM 64-bit
Monitor: Acer - Predator XB271HUA 27.0" 2560x1440 165Hz Monitor ($899.00 @ Scorptec)
Keyboard: Logitech - K120 Wired Standard Keyboard ($12.00 @ Shopping Express)
Mouse: FinalMouse - Tournament Pro 2016 Wired Optical Mouse
Total: $3616.30
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-08-04 19:17 AEST+1000