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It all depends on the machine PSU(Power Supply Unit), usually 80v-150v or as I have constructed before a 20v computer so it's the same as saying 'How long is a piece of string?'-
The Computer power supply takes in the 120-240 volts coming from the A/C outlet and reduces it to 18 volts D.C. to run the System board and peripheral's in the case, i.e. DVD ROM, CD ROM, HDD, Graphics card and CPU fan. Your monitor as well runs on 18 V.D.C. which is again reduced from the 120 - 240 volts A.C. through the power block, (transformer).
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoAt Least, 115 volts. Which is standard from a wall outlet. If should not matter how many volts your computer needs, but the watts does. For most computers they need anywhere from 100-800 watts.
Wiki User
∙ 14y agoPC uses voltage regulator to convert power supply voltage to its usable voltage.
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What are advantages power supply in computer?
The power supply converts the high voltage (e.g. 120VAC in US, 240VAC in Europe) alternating current house electricity supply down to the various different low voltage direct current supplies needed by different devices that make up the computer. These low voltage direct current supplies are tightly regulated in the power supply circuitry to prevent transients in the house electric supply from perturbing the computer's electronics as well as to compensate for variations in power demand as the different devices that make up the computer operate.
Can you run a three phase appliance on 240 volt power supply?
No. You need a 3-phase supply that matches the voltage and current rating of your appliance.
For what are high voltage power supplies typically used for?
High voltage power supplies have many uses. It is most commonly used to supply power from a device to the circuit. These are great for people who need to supply their house with power.
What could go wrong if you change the voltage on a PC power supply?
the computer will not switch on. May be the SMPS fail leading to a huge spark.
What should be the setting for a dual voltage selector switch on a power supply when using a computer in the US?
The 110VAC to 125VAC range (not the 220VAC to 250VAC range).
How can you get 12volts supply from speaker?
You can not. Speakers do not supply a voltage they need a voltage to operate correctly.
When do you need to convert the voltage for appliances?
You need to convert the voltage if your appliance requires less voltage than you power supply. example: appliances is 110V and power supply is 220V.
Should i use voltage stabilizer for my computer though have ups?
if you are using UPS then no need to use stabilizer.because your computer gets supply from ups after many process,even if you are getting fro ups.when outlet power is available ups in online mode and it feeds your computer from direct supply authority,but ups has some design to stabilize this voltage,
What supplies power to a computer?
The "power supply" supplies power to a computer. A computer's power supply is a "switchmode power supply" responsible for converting the AC voltage from the wall into several DC output voltages.
Which of the following is an output voltage of a computers power supply?
This can very greatly from computer to computer. You will have to open the case of your computer to tell.
What regulates the wall voltage to the voltages required by the computer chips?
The Power Supply
How many watts should you look for in a power supply for desktop?
You need to know what kind of voltage all your computer parts work at. There's not really a general Watt power supply that you should look for.
The purpose of the power supply in a PC is to?
The hardware in a computer need electric to run, this gives it the power that all the hardware needs and each connector has a certain voltage.
Why does a computer use 12V?
The input power of a computer Power Supply is usually 110-240VAC. The power supply usually transforms the input voltage into 3.3V, 5V, and 12V...all in DC. Different components require different voltage...either (1)ONE of a combination of these. 12V is one output voltage of the PSU(Power Supply)
What to do if the power supply is too low?
Obtain a power supply that has the correct output voltage that you need.
What is fuction of power supply?
The power supply makes the computer run, without any type of power supply it would be impossible to run a computer. The mains power supply for a laptop and the power supply unit of a desk top, both convert the high AC voltage from the mains power and convert it to low voltage DC, for the electronics of a computer to use.
What are advantages power supply in computer?
The power supply converts the high voltage (e.g. 120VAC in US, 240VAC in Europe) alternating current house electricity supply down to the various different low voltage direct current supplies needed by different devices that make up the computer. These low voltage direct current supplies are tightly regulated in the power supply circuitry to prevent transients in the house electric supply from perturbing the computer's electronics as well as to compensate for variations in power demand as the different devices that make up the computer operate.
