my corsair hx650 recently developed a loud whine in the fan, and though it eventually settled to a disconcerting hum, i had by then applied for rma - accepted - a mere month before the 7 year warranty expired
good timing, fan !
in retrospect, i discovered the fan had been humming for ages, and i kept thinking one of the many other fans in my rig was the culprit, but was too lazy to trouble shoot to locate it, although one fan in an earlier windforce cooled video card had also been a nuisance
so, they sent me a silent hx750i - awesome ! apart from the $80+ it cost to return the lump of a 650
the point of my thread is this : i now have 750 watts of grunt at my disposal in a platinum certified psu, that is so quiet that unless gaming with fans turned up on the rest of my rig, is less noisy than the qnap server parked above it (bloody 40mm fan is crap)
idling away with the i5 2500k it uses well under 100w at ~mid 80% efficiency
but even fired up at 4.2ghz on all cores with a gtx760oc plus 2x120 + 2x140 fans turned up for gaming, it is pushing it to need anywhere near 400w; and as the next "upgrade might be a gtx970 or 1060, which would use essentially the same or even less power, i got to thinking
the hx750i is the lowest powered high end psu corsair supply these days
given the power requirements of both cpu and gpu diminish with each refresh of process size, and ram gets more frugal too, why is the available power going up ?
yes, i know that sli and crossfire for monster video for 4k or multi-screen would use it, but for all the rest of us at 1440p or less, meh !
what about the average mid to mod-high end casual gamer that mostly surfs the net and does online stuff that a phone could handle ? surely 500w is the sweet spot ?
shit, even for the htpc i recently thought the psu had gone to god (it was the power board i eventually discovered), there was nothing of acceptable quality under 600w for a machine that has as its most hungry component a xonar hdav1.3 sound card (at 40w), which is perfectly capable with an i3-2100 and overkill 8gig of ram and onboard video
tldr : why can't anyone supply low wattage power supplies of high efficiency
marketing hype has yum cha 1000w as more desirable than appropriate 350w gold plus
comments as you see fit...