I have a Gigabye X58A-UD3R motherboard, i7-950 based system that is\nshowing signs of what appears to me to be a power supply fault.\n\nIf I power the system down for several hours AND switch off the AC to\nthe supply, when I attempt to power it back up again, pressing the\npower button does nothing and then after some period of time (perhaps\n20 minutes or more) the system powers up and runs normally. When it\nis in the dead state, there are no LEDs illuminated on the motherboard\n(except for the blue 'clear CMOS' button), the fan doesn't attempt to\nspin.\n\nI first noticed the problem a couple of months ago, and at that time\nthe power up delay was only a minute or so. It has progressively\nreached the current state.\n\nWhen the system is running, I can reboot it, power it down and\nimmediately power it up again with no problems. The fault only occurs\nwhen the system has been powered down for some time (with the AC input\nswitched off).\n\nThe power supply is an ANTEC VP650 V2 and is just on 12 months old.\nThe previous power supply (a Vantec ION 520W job) died after 3 years of\nservice.\n\nMy question is: Do you think this is a power supply issue? The machine\nruns flawlessly otherwise. if it is a power supply issue, what brand\nof supply is good these days. I bought the VANTEC because it was\nsupposed to be a quality power supply.