What about the Patriot G Series RAM? Is it strictly for AMD and you wont get those results on an P55 board? Just thinking 1600Mhz, 7-7-7-20 and just over £70 looks alright!
Not sure about them, I know some of the dual channel kits are 1.8 - 1.9 volts, so I'm presuming they'd be no good for core i5. I ordered some of the G-Skill ripjaw stuff as they've been tested on the P55 platform and more specifically the GD-80 and GD-65. I think you need to be looking for 1.65 volt kits.