It is important to know the voltage rating for the RAM. If it is 1.5V then best not to go with a Skylake or Kabylake as their memory controller might be damaged by using 1.5V RAM. Better off to go with a Haswell build, here is one. The 4590 is still a capable CPU and not much slower than the Skylake equivalent i5-6600.
PCPartPicker part list:
https://uk.pcpartpicker.com/list/kGPpVY
Price breakdown by merchant: https://uk.pcpartpicker.com/list/kGPpVY/by_merchant/
CPU: Intel Core i5-4690 3.5GHz Quad-Core Processor (£177.92 @ Amazon UK)
CPU Cooler: Zalman CNPS5X Performa CPU Cooler (£16.59 @ Amazon UK)
Motherboard: ASRock H97M Anniversary Micro ATX LGA1150 Motherboard (£62.80 @ Alza)
Total: £257.31
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-01-22 20:47 GMT+0000