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Power supply makes a whistle noise and computer doesn't turn on?
This is caused by a blown capacitor. The electrolyte in the capacitor is boiling, and the capacitor has opened to vent the excess pressure. You will need to purchase a new power supply or have a computer technician do it for you.
What does the power good signal do?
It enables a computer to switch ON after ensuring that the power supply turns ON and operates normally .In the event of malfunction of the power suppply the computer will not accept the power and refuse to boot.
What is the primary function of the power supply?
The job of a computer power supply is to give power to the computer even when it doesn't have any power. It is normally your adapter that comes with the computer.
What is the best choice for a replacement power supply for power supply ratings?
You need to make sure you buy a power supply that is rated for your motherboard. Common ratings are 350w, 400w and 500w.
Why do you need a power supply?
Power supplies are need by many electronic devices for several reasons. Most devices need one or more DC voltages. Only AC power is available at a common household outlet.Power supplies, among other things, usually must convert AC power to DC power.AC = Alternating CurrentDC = Direct CurrentVDC = Volts of Direct CurrentComputers, for example, need a power supply to convert 120 VAC line power to 6 VDC, 9 VDC and possibly 12 VDC. You will understand this more fully once you get further into the study of things like trigonometry, the calculus, basic circuit design, etc.
What is wrong if my power supply can't regulate?
The power supply's regulator circuits have failed. It will be best to replace the entire power supply unit. However if it is not regulating properly it has probably severely damaged other parts in the computer. You may need to replace most of the computer!
How do you replace an HP Pavilion power supply?
In order to replace an power supply on an HP Pavilion one would need to open up the computer and replace it. This can void one's warranty in almost all cases and is best left up to a qualified computer technician.
What should you use to provide power supply to your computer?
In order to supply power supply to your computer you would need an outlet plug near your computer. Then you can plug your computer into that and necessarily, use an extension.
When you need to replace the motherboard in a computer you will have disassemble the entire computer?
Since the motherboard serves as mounting or connecting base to all components in a computer you will have to diassemble almost everyting in order to replace it. You should be able to do it without diassembling the optical and hard drives and the power supply.
Can you replace a 250 watt power supply with a 500 watt one on a computer?
Yes you can, but there is a lot more to it then that, you need to know what power connectors are on the motherboard, so you should buy one that is made for your model if you don't know motherboards. If its a dell, hp, ect, you can go online and find a site that asks for the brand and model and will give you a few choices of PSU's to use, or get it from the MFG. You just can't under supply the computer.
How does the power supply in a computer operate?
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Do you need a Dell power supply cord if you are running off of a battery?
If you are running off a battery, you do not need a power supply cord. Once your battery runs out, you will need to plug in with an appropriate cord that fits your brand of computer.
What do you do if the Windows display freezes after startup and the power supply is really hot?
The display is probably freezing because the grafic card or processor is getting to hot. When this happened to me I had to install more fans in my computer case to help cool the system. R. > Check your power supply, It could be bad.
Power supply makes a whistle noise and computer doesn't turn on?
This is caused by a blown capacitor. The electrolyte in the capacitor is boiling, and the capacitor has opened to vent the excess pressure. You will need to purchase a new power supply or have a computer technician do it for you.
What type of maintenance is required of a computer's power-supply to ensure that it remains in working order?
Computer power supplies today do not need daily maintenance. They do need a free air flow to circulate through the power supply to prevent overheating. If there is a filter to prevent dust fro getting in to the power supply, it should be kept clean so that air flow is not restricted. If parts of the power supply get too hot they may fail to function properly or they may burn out.
What FireWire connector must use a separate power supply?
No FireWire does not need a separate power supply to operate. FireWire is used to connect peripheral devices to a computer.
When purchasing a computer case what other component is normally included?
In very inexpensive cases you often get a small power supply. With custom cases you will be allowed to select the power supply that is appropriate to your need.
