Overclock.net › Forums › Industry News › Hardware News › Half of PC Electricity Wasted
New Posts  All Forums:Forum Nav:

Half of PC Electricity Wasted

post #1 of 41
Thread Starter 
Note - this is talking about the PSU's that most OEMs use. Most people on the forum have PSU's with better efficiency

Quote:
Google, Intel and a host of PC and component companies on Tuesday unfurled the Climate Savers Computing Initiative, an effort to increase energy efficiency in PCs.

At the heart of the initiative is a push to get PC makers and consumers to adopt more efficient power supplies and voltage regulators. These two components, working together, convert AC power from a wall socket to 12-volt DC power that a computer uses.

Roughly 50 percent of the power delivered from a wall socket to a PC never actually performs any work, according to Urs Hölzle, Google fellow and senior vice president of operations. Half the energy gets converted to heat or is dissipated in some other manner in the AC-to-DC conversion. Around 30 percent of the power delivered to the average server gets lost, he added. The power in both cases is lost before any work is accomplished by a computer: later, even more energy is lost by PCs sitting idle, or as heat dissipated by other components.

By adopting more energy-efficient components, PCs and servers can utilize 90 percent or more of the electricity delivered to them. Google's own servers, in fact, are already 90 to 93 percent efficient.

Under Climate Savers' wish list, generic PCs and servers will be at least 90 percent efficient by 2010. If that goal can be met, these power-efficient servers and PCs will save 71.6 billion kilowatts of electricity in that year, said Gelsinger. The amount of electricity saved would result in 54 million tons of carbon dioxide not being put into the air that year.

Source
It goes to eleven
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6300 DS3 EVGA 8600GTS 2GB XMS2 DDR2-800 
Hard DriveOSMonitorKeyboard
1.294 TB Arch Linux/XP Samsung 226bw Eclipse II 
PowerCaseMouse
Corsair 520HX Lian-Li v1000B Plus G7 
  hide details  
Reply
It goes to eleven
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6300 DS3 EVGA 8600GTS 2GB XMS2 DDR2-800 
Hard DriveOSMonitorKeyboard
1.294 TB Arch Linux/XP Samsung 226bw Eclipse II 
PowerCaseMouse
Corsair 520HX Lian-Li v1000B Plus G7 
  hide details  
Reply
post #2 of 41
that's pretty intense..but I'm willing to be the efficiency is higher than 50%..I mean...come on...lol. That's REALLY bad.
Desktop
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX 8120 Gigabyte XA990-UD3 Gigabyte GTX670 Windforce III G. Skill RipJaws 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Western Digital Blue LG Dual Layer Sata Antec Kuhler 920 
OSMonitorKeyboardPower
Windows 8 Dell 2007wfp 20.1" Logitech G710+ Corsair Professional HX650 
CaseMouseMouse Pad
Coolermaster Silencio Steelseries Sensei [RAW] Func F10.s 
  hide details  
Reply
Desktop
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX 8120 Gigabyte XA990-UD3 Gigabyte GTX670 Windforce III G. Skill RipJaws 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Western Digital Blue LG Dual Layer Sata Antec Kuhler 920 
OSMonitorKeyboardPower
Windows 8 Dell 2007wfp 20.1" Logitech G710+ Corsair Professional HX650 
CaseMouseMouse Pad
Coolermaster Silencio Steelseries Sensei [RAW] Func F10.s 
  hide details  
Reply
post #3 of 41
That's why a PSU can make 2 PC run at the same time.

Or that 750W PSU make like 20+ HDD run at the same time and all that.
Intel Junk
(13 items)
 
  
CPUMotherboardGraphicsRAM
C2D E4500 @ 2.75GHz GIGABYTE 965P-S3 PNY 8800GT 512MB Crucial Ballistix Tracer DDR2 1000MHz 2GB 
Hard DriveOptical DriveOSMonitor
WD 750GB AALS, Hitachi 160GB laptop none Windows 7 Ulitmate 32bit 22" Acer LCD AL2216W 
KeyboardPowerCaseMouse
Logitech 350 Internet ASUS OEM 300W none Logitech RX300 
Mouse Pad
pads pads pads 
  hide details  
Reply
Intel Junk
(13 items)
 
  
CPUMotherboardGraphicsRAM
C2D E4500 @ 2.75GHz GIGABYTE 965P-S3 PNY 8800GT 512MB Crucial Ballistix Tracer DDR2 1000MHz 2GB 
Hard DriveOptical DriveOSMonitor
WD 750GB AALS, Hitachi 160GB laptop none Windows 7 Ulitmate 32bit 22" Acer LCD AL2216W 
KeyboardPowerCaseMouse
Logitech 350 Internet ASUS OEM 300W none Logitech RX300 
Mouse Pad
pads pads pads 
  hide details  
Reply
post #4 of 41
Quote:
Originally Posted by FearSC549 View Post
That's why a PSU can make 2 PC run at the same time.

Or that 750W PSU make like 20+ HDD run at the same time and all that.
lol no it's not. it has to do with the efficiency ratings...

it wastes power because if it's not efficient, it'll lost all that energy just converting it to DC and most of it goes as heat.

a PSU doesn't always produce 750 watts (for example).

If I only use 300 watts, the PSU will only consume 300 watts plus whatever inefficiency is factored in...so lets say it uses 345 watts from the plug to give your computer 300 watts. That's why it's wasting power.
Desktop
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX 8120 Gigabyte XA990-UD3 Gigabyte GTX670 Windforce III G. Skill RipJaws 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Western Digital Blue LG Dual Layer Sata Antec Kuhler 920 
OSMonitorKeyboardPower
Windows 8 Dell 2007wfp 20.1" Logitech G710+ Corsair Professional HX650 
CaseMouseMouse Pad
Coolermaster Silencio Steelseries Sensei [RAW] Func F10.s 
  hide details  
Reply
Desktop
(15 items)
 
  
CPUMotherboardGraphicsRAM
AMD FX 8120 Gigabyte XA990-UD3 Gigabyte GTX670 Windforce III G. Skill RipJaws 
Hard DriveHard DriveOptical DriveCooling
Crucial M4 Western Digital Blue LG Dual Layer Sata Antec Kuhler 920 
OSMonitorKeyboardPower
Windows 8 Dell 2007wfp 20.1" Logitech G710+ Corsair Professional HX650 
CaseMouseMouse Pad
Coolermaster Silencio Steelseries Sensei [RAW] Func F10.s 
  hide details  
Reply
post #5 of 41
Quote:
Originally Posted by Sideburns View Post
lol no it's not. it has to do with the efficiency ratings...

it wastes power because if it's not efficient, it'll lost all that energy just converting it to DC and most of it goes as heat.

a PSU doesn't always produce 750 watts (for example).

If I only use 300 watts, the PSU will only consume 300 watts plus whatever inefficiency is factored in...so lets say it uses 345 watts from the plug to give your computer 300 watts. That's why it's wasting power.
Which is specifically your PSU's efficiency rating....

PSUs are rated by their DC output. Their efficiency is rated by their AC to input to DC output ratio.

A PSU with 80% efficiency and is outputting 300 watts will pull 360 watts from the wall. The 60watts are lost to heat.
Raptor Raper
(13 items)
 
  
CPUMotherboardGraphicsRAM
Something with transistors FOXCONN Boodrage -> eVGA classified e760 GTX 480 / HD6850@1090/1200 3x2 gig G Skill Trident DDR2000 
Hard DriveOptical DriveOSMonitor
2x128GB Crucial C300 Sumsung SATA DVD-RW 64 bit Windows 7 Samsung 245BW 
KeyboardPowerCaseMouse
Microsoft curve Tagan ITZ 800W DD Torture Rack Diamondback 
  hide details  
Reply
Raptor Raper
(13 items)
 
  
CPUMotherboardGraphicsRAM
Something with transistors FOXCONN Boodrage -> eVGA classified e760 GTX 480 / HD6850@1090/1200 3x2 gig G Skill Trident DDR2000 
Hard DriveOptical DriveOSMonitor
2x128GB Crucial C300 Sumsung SATA DVD-RW 64 bit Windows 7 Samsung 245BW 
KeyboardPowerCaseMouse
Microsoft curve Tagan ITZ 800W DD Torture Rack Diamondback 
  hide details  
Reply
post #6 of 41
Wow, 30% lost... Thats alot..!
Teh PC!
(24 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7-2600K ASUS P8Z68-V PRO/GEN3 XFX Double Dissipation R9 290 2 x 8GB G.SKILL Ripjaws X Series 
Hard DriveHard DriveHard DriveHard Drive
SanDisk Ultra Plus 2 x Seagate Barracuda 7200.12 ST31000528AS 2 x Seagate Barracuda 7200.10 ST3500630AS Seagate Barracuda 2TB 
Optical DriveCoolingOSMonitor
LITE-ON iHAS124 Thermalright Ultra Extreme 120 Windows 8.1 Pro 64-Bit ASUS VN248H-P 
KeyboardPowerCaseMouse
Logitech G510 Seasonic SS-760XP2 760W Corsair 650D Logitech G500 
Mouse PadAudioAudioAudio
Razer eXactMat ASUS XONAR D1 -7.1 Channel PCI Audio Card Sound... AKG Acoustics K550 Closed-Back Reference Headph... Grado Prestige Series SR325is Headphones 
AudioAudioAudioAudio
M-Audio BX5a Deluxe 70-watt Bi-amplified Studio... Dayton SUB-120 12" 150 Watt Powered Subwoofer Millett "Starving Student" Hybrid Amp Sennheiser HD595 
  hide details  
Reply
Teh PC!
(24 items)
 
  
CPUMotherboardGraphicsRAM
Intel Core i7-2600K ASUS P8Z68-V PRO/GEN3 XFX Double Dissipation R9 290 2 x 8GB G.SKILL Ripjaws X Series 
Hard DriveHard DriveHard DriveHard Drive
SanDisk Ultra Plus 2 x Seagate Barracuda 7200.12 ST31000528AS 2 x Seagate Barracuda 7200.10 ST3500630AS Seagate Barracuda 2TB 
Optical DriveCoolingOSMonitor
LITE-ON iHAS124 Thermalright Ultra Extreme 120 Windows 8.1 Pro 64-Bit ASUS VN248H-P 
KeyboardPowerCaseMouse
Logitech G510 Seasonic SS-760XP2 760W Corsair 650D Logitech G500 
Mouse PadAudioAudioAudio
Razer eXactMat ASUS XONAR D1 -7.1 Channel PCI Audio Card Sound... AKG Acoustics K550 Closed-Back Reference Headph... Grado Prestige Series SR325is Headphones 
AudioAudioAudioAudio
M-Audio BX5a Deluxe 70-watt Bi-amplified Studio... Dayton SUB-120 12" 150 Watt Powered Subwoofer Millett "Starving Student" Hybrid Amp Sennheiser HD595 
  hide details  
Reply
post #7 of 41
Can the computers run without the increased heat input? No.

Thats means it isn't wasted.
System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2500k ASRock P67 Extreme4 Gen 3 AMD 7970 16GB DDR3 
Hard DriveOptical DriveOSMonitor
Intel 520 256GB SATA DVD Burner Windows 7 64 bit Deal U2410 
KeyboardPowerMouse
Adesso Mechanical Silverstone OP650 Logitech G700 
  hide details  
Reply
System
(13 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 2500k ASRock P67 Extreme4 Gen 3 AMD 7970 16GB DDR3 
Hard DriveOptical DriveOSMonitor
Intel 520 256GB SATA DVD Burner Windows 7 64 bit Deal U2410 
KeyboardPowerMouse
Adesso Mechanical Silverstone OP650 Logitech G700 
  hide details  
Reply
post #8 of 41
If you can eliminate it, it's wasted. That's a little like saying, if you can't eat your meal without a coke it's not wasted coke to throw out 30% of it. It IS wasted... though it's acceptable. Though it'd be nice not to.
Raptor Raper
(13 items)
 
  
CPUMotherboardGraphicsRAM
Something with transistors FOXCONN Boodrage -> eVGA classified e760 GTX 480 / HD6850@1090/1200 3x2 gig G Skill Trident DDR2000 
Hard DriveOptical DriveOSMonitor
2x128GB Crucial C300 Sumsung SATA DVD-RW 64 bit Windows 7 Samsung 245BW 
KeyboardPowerCaseMouse
Microsoft curve Tagan ITZ 800W DD Torture Rack Diamondback 
  hide details  
Reply
Raptor Raper
(13 items)
 
  
CPUMotherboardGraphicsRAM
Something with transistors FOXCONN Boodrage -> eVGA classified e760 GTX 480 / HD6850@1090/1200 3x2 gig G Skill Trident DDR2000 
Hard DriveOptical DriveOSMonitor
2x128GB Crucial C300 Sumsung SATA DVD-RW 64 bit Windows 7 Samsung 245BW 
KeyboardPowerCaseMouse
Microsoft curve Tagan ITZ 800W DD Torture Rack Diamondback 
  hide details  
Reply
post #9 of 41
Actually, depending on how you look at it, 100% of the power is "wasted". This is because because the power in to power out ratio is zero, since no power comes out, and 100% of the power in is turned into heat.
Main Rig
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K Asus P8P67 EVO GTX 980 16GB DDR3 1866mhz 
Hard DriveCoolingOSMonitor
Revodrive 3 x2 240GB, M500 960GB, 2x WD 1TB Rai... Noctua NH-D14 Windows 10 Apple Cinema 30" 1600p 
KeyboardPowerCaseMouse
Logitech Orion Spark Capstone 750w CM Storm Scout Logitech G700s 
  hide details  
Reply
Main Rig
(14 items)
 
  
CPUMotherboardGraphicsRAM
i5 2500K Asus P8P67 EVO GTX 980 16GB DDR3 1866mhz 
Hard DriveCoolingOSMonitor
Revodrive 3 x2 240GB, M500 960GB, 2x WD 1TB Rai... Noctua NH-D14 Windows 10 Apple Cinema 30" 1600p 
KeyboardPowerCaseMouse
Logitech Orion Spark Capstone 750w CM Storm Scout Logitech G700s 
  hide details  
Reply
post #10 of 41
Thread Starter 
Quote:
Originally Posted by Fishie36 View Post
Actually, depending on how you look at it, 100% of the power is "wasted". This is because because the power in to power out ratio is zero, since no power comes out, and 100% of the power in is turned into heat.
This is dealing with PSU efficiency

Quote:
Originally Posted by pauldovi View Post
Can the computers run without the increased heat input? No.
Ummm...why not?
It goes to eleven
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6300 DS3 EVGA 8600GTS 2GB XMS2 DDR2-800 
Hard DriveOSMonitorKeyboard
1.294 TB Arch Linux/XP Samsung 226bw Eclipse II 
PowerCaseMouse
Corsair 520HX Lian-Li v1000B Plus G7 
  hide details  
Reply
It goes to eleven
(13 items)
 
  
CPUMotherboardGraphicsRAM
E6300 DS3 EVGA 8600GTS 2GB XMS2 DDR2-800 
Hard DriveOSMonitorKeyboard
1.294 TB Arch Linux/XP Samsung 226bw Eclipse II 
PowerCaseMouse
Corsair 520HX Lian-Li v1000B Plus G7 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Hardware News
Overclock.net › Forums › Industry News › Hardware News › Half of PC Electricity Wasted