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Topic: CPU electrical consumption

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	Clinton Goveas :: Wikipedia Reference
		CPUs provide the fundamental digital computer trait of programmability, and are one of the necessary components found in computers of any era, along with primary storage and input/output facilities.
		A CPU that is manufactured as a single integrated circuit is usually known as a microprocessor.
		CPU designers then borrowed ideas from commercial computing markets such as transaction processing, where the aggregate performance of multiple programs, also known as throughput computing, was more important than the performance of a single thread or program.
	www.clintongoveas.com /wikipedia/?title=CPU (6978 words)

	Building your PC: The Central Processing Unit (CPU)
		The Central Processing UNIT (CPU), sometimes known simply as a processor, is the component in a digital computer that interprets instructions and processes data contained in software.
		Though this CPU is mainly used in mobile computing applications certain motherboard developers have bundled in into their designs, but it currently represents a niche desktop CPU.
		In terms of CPU design, by 2002 it was becoming obvious that the ubiquitous 32-bit architecture of pentium-class CPUs was becoming limiting for applications using large datasets (such as image processing and video applications).
	www.celtnet.org.uk /info/cpu.html (3093 words)

	CPU electrical consumption - Wikipedia, the free encyclopedia
		The steady trend in CPU power supplies over the past decade has been towards using lower voltages and having considerably higher currents.
		One such CPU, the Intel XScale, can run at 600 MHz with only half a watt of power, whereas x86 PC processors from Intel in the same performance bracket consume roughly eighty times as much energy.
		Processor manufacturers usually release two power consumption numbers for a CPU, the typical thermal power, which is measured under normal load, and the maximum thermal power, which is measured under a worst-case set of instructions.
	en.wikipedia.org /wiki/CPU_electrical_consumption (626 words)

	Central processing unit - Wikipedia, the free encyclopedia
		During the height of electromechanical and electronic computers, electrical relays and vacuum tubes (thermionic valves) were commonly used as switching elements.
		Transistorized CPUs during the 1950s and 1960s no longer had to be built out of bulky, unreliable, and fragile switching elements like vacuum tubes and electrical relays.
		Many later CPU designs use similar mixed bit width, especially when the processor is meant for general purpose usage where a reasonable balance of integer and floating point capability is required.
	en.wikipedia.org /wiki/Central_processing_unit (3431 words)

	CPU electrical consumption: Definition and Links by Encyclopedian.com - All about CPU electrical consumption
		CPUs in personal computers use a lot of power because the manufacturers are rewarded for raw speed instead of energy efficiency.
		One of the simplest way to reduce the power consumption of a PC's CPU is just to slow its clock rate.
		Processor manufacturers usually release two power consumption numbers for a CPU, first is the 'typical' thermal power, which is how much power the CPU draws under normal load, and the other is the maximum thermal power, which is how much power it can draw if you give it a worst-case set of instructions.
	www.encyclopedian.com /cp/CPU-power-consumption.html (487 words)

	Electrical power conservation apparatus and method - US Patent 6836099 (Site not responding. Last check: 2007-11-06)
		An electrical power control apparatus and method for a conventional 60 hertz or other conventional frequency electrical AC power supply voltage waveform to proved an effective output current and voltage to an intended load whereby the output frequency is the same as the input frequency.
		Such electrical devices are conventionally powered by alternating current (AC) electrical through a building electrical system communicating electrical power from a local power grid supplying power from a generating utility device through wires, junction boxes, and electrical sockets conveniently located in the various rooms and on the external structure of businesses and homes.
		Commonly, electrical power provided by power generating companies is in the form of alternating current which in the United States alternates at a rate of 120 cycles per second or 60 Hz and in many foreign countries at the rate of 100 cycles per second or at a rate of 50 Hz.
	www.patentstorm.us /patents/6836099.html (7906 words)

	Low power CD-ROM player with CD-ROM subsystem for portable computer capable of playing audio CDs without supply energy ... (Site not responding. Last check: 2007-11-06)
		G2/S5 Electrical power is turned on but the computer consumes a minimal amount of power by not executing either user or system computer programs, and the system's context is not preserved by hardware.
		An electrical power control signal supplied by the state machine 202 to the mode-control signal bus 246 indicates either that the CD-ROM drive 138 is or has been recently operating, or that the CD-ROM drive 138 has not been operating recently.
		Electrical circuitry included in the CD-ROM subsystem 106 may use this signal from the audio-interface IC 102 for removing electrical power from both the CD-ROM drive 138 and from the audio output amplifier 146.
	www.patentstorm.us /patents/6711631.html (7387 words)

	Sizing--The Foundation for a Successful SAP Implementation
		The relative CPU load in the Standard Application Benchmark suite is adjusted to FI, the component with the least CPU consumption.
		The system bottleneck is always considered to be related to the CPUs and not to the memory, network, or the I/O subsystem-whether it is a central system or a distributed system of implementation.
		CPU: Standard application benchmarks are used to determine the CPU times (service times) for each transaction and service (dialog, update, and database) on a reference CPU.
	www.dell.com /content/topics/global.aspx/power/en/ps4q99_sap?c=us&l=en&s=gen (3010 words)

	CPU electrical consumption -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-11-06)
		CPUs in personal computers use a lot of power because the manufacturers are 'rewarded' (by sales) for raw speed instead of energy efficiency.
		CPUs for desktop computers typically use more power than any other component inside the computer, except perhaps recent technology video cards which are essentially special purpose CPUs (+memory) themselves.
		The steady trend in CPU power supplies over the past decade has been towards using lower (The rate at which energy is drawn from a source that produces a flow of electricity in a circuit; expressed in volts) voltages and having considerably higher currents.
	www.absoluteastronomy.com /encyclopedia/C/CP/CPU_electrical_consumption2.htm (834 words)

	Encyclopedia: CPU electrical consumption
		Transmission lines in Lund, Sweden Electric power, often known as power or electricity, involves the production and delivery of electrical energy in sufficient quantities to operate domestic appliances, office equipment, industrial machinery and provide sufficient energy for both domestic and commercial lighting, heating, cooking and industrial processes.
		A power supply unit (sometimes abbreviated power supply or PSU) is a device that supplies electrical power to a device or group of devices.
		Microwatt (SI symbol: µW) is a unit used for measuring the consumption of electrical power.
	www.nationmaster.com /encyclopedia/CPU-electrical-consumption (1344 words)

	x86
		The x86 architecture first appeared inside the Intel 8086 CPU in 1978 as a follow on to the 8008 processor (which itself followed the 4004).
		Linux, 386BSD, Windows NT and Windows 95 were all initially developed for the 386, because it was the first CPU that made it possible to reliably support the separation of programs' memory space (each into its own address space) and the preemption of them in the case of necessity (using rings).
		The basic architecture of the 386 (which is also called IA-32) became the basis of all further development in the x86 series, and no significant changes have been made to it since, thus exemplifying the elegance and scalability of the 386's design.
	www.fact-library.com /x86.html (1821 words)

	Power consumption (from computer) -- Encyclopædia Britannica (Site not responding. Last check: 2007-11-06)
		In modern economic theory the term means, specifically, “final” consumption, as distinguished from the using up of goods to produce other goods in a manufacturing industry.
		Final consumption must also be distinguished from the purchase by industry of fixed assets such as buildings and machinery, which is known as capital...
		Electric energy is unrivaled for many uses, as for lighting, computer operation, motive power, and entertainment applications.
	0-www.britannica.com.library.unl.edu /eb/article-235906 (809 words)

	Recording and/or reproducing apparatus adapted to minimized electrical energy consumption - Patent 5227927
		This ensures a great electric energy saving effect in the recording mode on one hand and a good operability in the reproducing mode on the other as the reproduced picture can be monitored immediately after the cassette is loaded.
		In case that the electrical control signal is disturbed by some external noise due to a head shifting action, the invented arrangement eliminates the possibility of recording in a wrong track.
		In the embodiment and its modifications described in the foregoing, the recording tracks on the disc are numbered in sequence from the peripheral side of the disc toward the center of the disc.
	www.freepatentsonline.com /5227927.html (17449 words)

	Underclocking - Wikipedia, the free encyclopedia
		Underclocking is the practice of modifying a microprocessor's speed settings to run at a lower clock speed than the manufacturer's specification.
		The purpose is generally to decrease heat dissipation and/or decrease electricity consumption.
		This can be done for the purposes of increasing system stability in high-heat environments, or to allow a system to run with a lower airflow (and therefore quieter) cooling fan or without one at all.
	en.wikipedia.org /?title=Underclocking (150 words)

	Danger, High Voltage: CPU Power Consumption and Cooling
		CPUs' core voltages, heat and power dissipation, and temperature ratings are increasingly important aspects of PC architecture.
		This figure, different for different manufacturers' CPU families, is expressed in volts, such as a core voltage of 1.5V for Intel's 2.4GHz Pentium 4.
		The most common voltage shift is an upward one, as a CPU model climbs up the gigahertz ladder: When the Pentium 4 reached 2.6GHz last year, Intel nudged up the core voltage rating for that and faster models to 1.525V.
	www.cpuplanet.com /features/article.php/1690721 (1070 words)

	CPU power consumption (Site not responding. Last check: 2007-11-06)
		Modern personal computer CPUs (central processing units) consume a considerable amount of electrical power.This must be considered when choosing a power supply unit, andwhen power consumption is constrained by production and cost.
		CPUs in personalcomputers use a lot of power because the manufacturers are 'rewarded' (by sales) for raw speed instead of energy efficiency.
		Processor manufacturers usually release two power consumption numbers for a CPU, first is the 'typical' thermal power, whichis how much power the CPU draws under normal load, and the other is the maximum thermal power, which is how much power it candraw if you give it a worst-case set of instructions.
	www.therfcc.org /cpu-power-consumption-68133.html (708 words)

	CPU Shack - CPU Collection Museum - How a CPU Is Made - Emerging Technologies
		Researchers have long known that germanium is a better conductor of electricity than silicon, but they had not figured out how to build higher concentrations of germanium into chips using conventional techniques..
		Germanium, which is a by-product of zinc ore processing, is a hard element with the same crystal structure as a diamond.
		It is a semiconductor with electrical properties between those produced by a metal and an insulator.
	www.cpushack.net /EmergingTech.html (766 words)

	Electricity comes from other planets
		The cult of unlimited electrical consumption needs to be challenged in the centers of post-industrial excess.
		While latent electricity usage may not be the greatest cause of global warming, there are myriad poorly performing devices that are not being scrutinized sufficiently.
		The fact that computer CPU chips are advertised and promoted almost exclusively on the basis of their speed is another example of how the public is diverted from consideration of electrical, and consequently, fossil fuel usage.
	www.artcontext.com /activism/environment/powerConsumption.html (695 words)

	IDF — Summer 2004 - BeHardware
		AMD is currently improving their processors’ performance and reducing its electrical consumption to have an advantage on the performance level.
		Electrical consumption will be higher than the current Pentium M but the power management system will be able to reduce it by deactivating one of the cores.
		CPUs and chipsets will have to be adapted for use with this technology, as they already partly are.
	www.behardware.com /art/imprimer/516 (2922 words)

	Re: Why diode temp jumps around?
		Heatsink cannot be removed because CPU is working hard at both 1 amp 'system' consumption and 0.55 amp 'system' consumption.
		To protect a CPU that is overheating, then CPU cycle execution time is slowed (in some Pentiums is said to stop).
		CPU electronics can still execute and yet not provide the user with any useful output.
	www.mailarchive.ca /lists/alt.comp.periphs.mainboard.asus/2003-12/1775.html (822 words)

	Power Consumption (Site not responding. Last check: 2007-11-06)
		The recent electricity issues in California have prompted me to be a little more aware about how I use electricity.
		Appliances such as computers, whose consumption of power varies widely and can be reduced with energy-conscious configuration, give you hardly any clue about how much power they consume at any point in time.
		It may be worth noting that the CPU and memory, not disk, account for nearly all of the difference between idle and active power consumption levels in the newer computers.
	www.oak.homeunix.org /~marcel/sdf/stuff/power.php (509 words)

	Consumición eléctrica de la CPU (Site not responding. Last check: 2007-11-06)
		CPUs en el otro de la electrónica uso a menudo lejos menos energía.
		CPUs en ordenadores personales utilizan muchos de energía porque los fabricantes ' se recompensan ' (por ventas) por velocidad cruda en vez de rendimiento energético.
		CPUs para las computadoras de escritorio utilizan típicamente más energía que cualquier otro componente dentro de la computadora, excepto las tarjetas video de la tecnología quizás reciente que son esencialmente el propósito especial CPUs (+memory) ellos mismos.
	www.yotor.net /wiki/es/co/Consumici%F3n%20el%E9ctrica%20de%20la%20CPU.htm (687 words)

	Electrical devices - Patent 4839562
		According to a second aspect of the invention, there is provided an electrical device comprising a body adapted to be interposed between a light and a light socket, the device containing alarm condition detection circuitry for monitoring a security condition or hazard condition in the environment in which the device is located.
		Thus, the circuitry may be arranged to control the level of energisation of the light with which it is associated with a view to economising on electrical consumption.
		At various intervals during the year, say, to coincide with the electricity supply board measurements, the saving recorded in a non volatile memory 96 is then presented as an account which would approximate to 50% of the saving made during the period covered.
	www.freepatentsonline.com /4839562.html (4362 words)

	Powering Portable CPU Cores - Maxim/Dallas
		Providing electrical power for CPUs and other high-density logic has never been easy, though it appeared for awhile that technology would eventually reduce the power needed for computing tasks.
		This characteristic lets you implement a controlled form of load rejection-sometimes called voltage positioning-in which the output voltage is positioned as a function of load current.
		Because this improvement comes at the expense of conversion efficiency, it may be helpful to propose a new term that compares a voltage-positioned circuit with a conventional (nonpositioned) one.
	www.maxim-ic.com /appnotes.cfm/appnote_number/675 (1568 words)

	Video/Imaging DesignLine \| Media SoC design for reduced power consumption (Site not responding. Last check: 2007-11-06)
		However, the increased power consumption of highly integrated SoCs and the cost pressures in the consumer electronics market is causing system designers of AC powered devices to reduce power consumption so that less expensive chip packaging and simpler heat dissipation systems can be used.
		To achieve high integration and simultaneously reduce the overall system power consumption, the SoC needs to be designed with architectures that are "power conscious" which use design techniques to reduce the overall gate count and power consumption while efficiently handling data transactions to minimize inefficient, power consuming interactions with external memory.
		The second factor that has a significant impact on the power consumption of an SoC is the type of process and transistors that are used in the design.
	www.videsignline.com /showArticle.jhtml?printableArticle=true&articleId=196100135 (2500 words)

	Re: Do 100% processors consume more power? (Site not responding. Last check: 2007-11-06)
		They are talking about CPU cycles, not electrical power consumption.
		Note that the power increase for the CPU from idle to 100% utilisation is a fraction of the overall PC power load.
		The costs and ethics of electrical power useage for s(at)h have been greatly discussed on here in the past.
	www.thehelparchive.com /new-1639274-293.html (489 words)

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