Does a bigger power supply cost more in electricity bills(more to the question).

curtains · 03-22-2007, 01:24 PM

Does a bigger power supply cost more run(as in electricity bills) if say your running the same components, so say u had 2 identical computers but the only thing different was the power supply lets just say a 300w and a 600w to make things simple(i know that you wouldnt usually use a 600w psu in one that only requires a 300w one)?

**apj101** · 03-22-2007, 01:28 PM

any electricity change would depend on the hardware within the pc not just the PSU that feeds it, but any change is highly negligible

Kornowski · 03-22-2007, 03:15 PM

If you are worried about the PSU using more energy, thus costing more to run.

You could get a PSU that fits in with the 80 power standard rule.

Like my Antec, it's 80% efficiant, meaning that it will waste less power, lowering the amount going to waste, lowering the electric bill and helping the planet out.

**ceewi1** · 03-23-2007, 07:24 AM

A power supply will only put out the amount of power required. In general, PSUs will be slightly less efficient when run at low loads, but the difference is only a couple of percentage points, and the actual efficiency of the PSU is a far more important concern.

[-0MEGA-] · 03-23-2007, 01:07 PM

Just to reiterate what others have said, the power of the PSU doesnt depict how much power the PC will use. Say you bought a 500W and a 1000W PSU, the power supply will only use what is needed by the PC.

03-22-2007, 01:24 PM	#1 (permalink)
curtains Gold Member Join Date: Oct 2006 Location: Aucklnd, New Zealnd Age: 19 Posts: 378	Does a bigger power supply cost more in electricity bills(more to the question). Does a bigger power supply cost more run(as in electricity bills) if say your running the same components, so say u had 2 identical computers but the only thing different was the power supply lets just say a 300w and a 600w to make things simple(i know that you wouldnt usually use a 600w psu in one that only requires a 300w one)?

03-22-2007, 01:28 PM	#2 (permalink)
apj101 Administrator Join Date: Apr 2005 Location: London Age: 26 Posts: 9,169	any electricity change would depend on the hardware within the pc not just the PSU that feeds it, but any change is highly negligible __________________ What did one snow man say to the other? can you smell carrot? The fight is won or lost far away from witnesses - behind the lines, in the gym, and out there on the road, long before I dance under those lights. How you do anything, is how you do everything!

03-22-2007, 03:15 PM	#3 (permalink)
Kornowski VIP - Graphics Guru Join Date: Jul 2006 Location: Liverpool, UK Age: 18 Posts: 12,819	If you are worried about the PSU using more energy, thus costing more to run. You could get a PSU that fits in with the 80 power standard rule. Like my Antec, it's 80% efficiant, meaning that it will waste less power, lowering the amount going to waste, lowering the electric bill and helping the planet out. __________________ Intel Core 2 Quad Q6600 EVGA 750i SLI FTW 4GB Crucial Ballistix @ 800MHz 2 X 8800GTS G92 in SLI Corsair HX520W Windows Vista Home Premium Seagate Barracuda 500GB 7200.11 SATA II Tuniq Tower LED OCZ XTC RAM Cooler Antec 900 (Modded)

03-23-2007, 07:24 AM	#4 (permalink)
ceewi1 Moderator Join Date: Dec 2005 Location: Melbourne, Australia Age: 21 Posts: 5,280	A power supply will only put out the amount of power required. In general, PSUs will be slightly less efficient when run at low loads, but the difference is only a couple of percentage points, and the actual efficiency of the PSU is a far more important concern. __________________ CPU: Core 2 Duo E6600 / MOBO: Gigabyte 965P-DS3 / GPU: Gigabyte HD4870 RAM: 2GB G.Skill F2-6400CL4D-2GBPK / HDD: 2TB Total HDD / PSU: Antec NeoPower 480W Cheap PSUs - 2% of system costs, responsible for 28% of system deaths As Sealed Stick was removed, lost or damaged, it shall be out of warranty validity. - The "Warranty void if removed" sticker on numerous CoolerMaster PSUs. Useful PSU Guides

03-23-2007, 01:07 PM	#5 (permalink)
[-0MEGA-] Diamond Member Join Date: Nov 2004 Location: Concord, NH Age: 20 Posts: 27,082	Just to reiterate what others have said, the power of the PSU doesnt depict how much power the PC will use. Say you bought a 500W and a 1000W PSU, the power supply will only use what is needed by the PC. __________________ Desktop // Laptop Core 2 Quad Q9550 @ 4.0GHz // Core 2 Duo P8400 2.26GHz Asus Rampage Formula X48 // Intel PM45 ATI 4870X2 2GB GDDR5 // 512MB GDDR3 9800M GTS 4GB (2x 2GB) DDR2 940 // 4GB DDR3 800 750GB SATAII w/32MB // 200GB SATAII 7200RPM Creative SB X-Fi Titanium Fatal1ty SilverStone 750W +12V@60A 3DMark06: 21391 // 9179

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