Hi guys, just a quick question. No where seems to sell a pci-e power cable extension so I'm going to bodge my own. I've picked up come multicore wire from a highstreet electronics store rated at 2.5A and 650V I just need to know this is suitable before I blow something up! also, as far as I can tell the standard pci-e cable is single core, will this make a difference? TIA!