Will this cpu and motherboard be ok ???

[ryangray175.rg]

I am going to get:
- Intel Core i7-7700K 4.2 GHz QuadCore 8MB Cache Processor
- ASUS Z170-A Intel Skylake SLi/CrossFire ATX Motherboard

LINK
https://www.amazon.co.uk/i7-7700K-QuadCore-Processor-CrossFire-Motherboard/dp/B07147GZNT/ref=sr_1_26?s=computers&ie=UTF8&qid=1520538326&sr=1-26&keywords=Intel+Core+i7-7700K+4.2+GHz+QuadCore+8MB+Cache+Processor

If i get this does anyone know what ram i should get that is not too expensive i am thinking under £200, Also could anyone help me with a good fan for the cpu that is not over £100

Would be helpful if someone can help me thank you

 

[Barty1884]

You'll need a BIOS update on the Z170 board to support the 7700K, keep that in mind. It's a very weird pairing, and there's nothing in the ad (that I can see) confirming the BIOS is updated. Would be a very strange 'bundle' to sell if it hasn't been, but still.
An out of the box, compatible Z270 board shouldn't set you back much more... and has less potential headaches.

In fact, with an SLI compatible board, it works out about the same to buy them individually anyway:
PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor (£253.99 @ Aria PC)
Motherboard: ASRock - Z270M Extreme4 Micro ATX LGA1151 Motherboard (£82.16 @ Amazon UK)
Total: £336.15
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-04-10 22:11 BST+0100

And if you don't *need* SLI support, it can be cheaper:

PCPartPicker part list / Price breakdown by merchant

CPU: Intel - Core i7-7700K 4.2GHz Quad-Core Processor (£253.99 @ Aria PC)
Motherboard: Gigabyte - GA-Z270P-D3 ATX LGA1151 Motherboard (£68.98 @ Amazon UK)
Total: £322.97
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-04-10 22:12 BST+0100

As for RAM, depends on your use case. For the vast majority of users, a 2x8GB kit of DDR4, 2400MHz or greater should be sufficient.
Intel chips don't benefit as much as their AMD counterparts from faster memory.

This Team Vulcan kit @ 3000MHz is actually only 10quid more than the cheapest 2x8GB kit @ 2400MHz!
PCPartPicker part list / Price breakdown by merchant

Memory: Team - Vulcan 16GB (2 x 8GB) DDR4-3000 Memory (£149.99 @ Overclockers.co.uk)
Total: £149.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-04-10 22:13 BST+0100

As for a CPU cooler, really depends what you want to do.
A Cryorig H7 would be more than sufficient for stock speeds or a mild overclock.

PCPartPicker part list / Price breakdown by merchant

CPU Cooler: CRYORIG - H7 49.0 CFM CPU Cooler (£34.99 @ Overclockers.co.uk)
Total: £34.99
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-04-10 22:13 BST+0100

For some serious overclocking, you'll want to look to sizeable air coolers like a Noctua NH-D15 or similar.... or a decent 240mm AIO.

PCPartPicker part list / Price breakdown by merchant

CPU Cooler: Noctua - NH-D15 82.5 CFM CPU Cooler (£84.79 @ Alza)
Total: £84.79
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-04-10 22:14 BST+0100

PCPartPicker part list / Price breakdown by merchant

CPU Cooler: Deepcool - CAPTAIN 240EX WHITE 153.0 CFM Liquid CPU Cooler (£85.47 @ Scan.co.uk)
Total: £85.47
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2018-04-10 22:14 BST+0100

 

[mdd1963]

If your case is wide enough, the Noctua NH-D15 does just 'peachy' with my 7700K. 29C idle, 33C surfing, 62C in BF1 with MCE on (i.e., all cores at 4.5 GHz), 63C in Aida stress, 67C in Prime95 v26.6, 73C in later versions...