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EMachines are notorious for coming with under-powered power supplies, and several fires have been known to occur due to overheating and overloading of the PSU.
In general, as a professional repair technician, I would say ALL eMachines need a new PSU on purchase.
However symptoms of a direct PSU failure are:
Failure to turn on (No fans, no lights, no noise)
Crashing or instability, especially during heavy use
Strange noises (high pitched whines, 'buzzing')
Excessive heat from the PSU (exceeding 140 degrees F)
Upgrading ANY component to a higher-powered component, or adding any new high-draw peripherals (even external hard drives that are not self-powered) can cause an immediate overload of a PSU.
Troubleshooting a PSU involves removing all non-essential components (wireless cards, NIC cards, extra memory, hard drives, video cards [if onboard is present and useable], extra fans or cooling [NOT the CPU fan!!!], external components, etc.
If it suddenly begins working with objects removed, it is likely a shortage of power.
Keep in mind some other malfunctions can mimic PSU problems, such as failing motherboards, overheating, and bad RAM.
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What gives power to the computer?
Electricicity, a power source, a plug
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.
Are power supplies interchangeable?
Yes. A power supply is most definitely replaceable. When replacing a power supply, make sure you know how much watts your computer requires to run. Be sure you are not buying too little "wattage" of a PSU.
What are the function of SMPS in Computer?
S M P S means - Switch Mode Power Supply, As we all Know that the computer is an electronic device. And the electronic devices runs on Direct Current ( DC ). While the electrical devices runs on Alternating current (AC ). The "S M P S" is an electrical equipment which is used to covert AC inputs into DC modes for the power requirement of the computer components.
A sentence with supply in it?
My mom told me that if I know the word supply and I told her that I did not know
Is capacitors used to check the power supply output of a computer?
As you know a SMPS of a computer converts AC signals to DC signals. Here a capacitor is used to filter AC signals. eNjOy!!
What is the function of the ATX Power?
Atx power i dont really know :(
When adding hardware to a computer how do you know at some point if you are in danger of not having the proper power supply for the add ons?
If your computer mysteriously restarts itself with no prompts, this is a major sign that your power supply is not providing enough power to your computer. You cannot harm your hardware by not offering enough power, so don't be worried about that. Things that spin eat up the most power, such as fans, CD-roms and hard drives. Addings lots of PCI cards don't take much power. I have 2 hard drives, 2 DVD drives, an intake fan and a hard drive cooler on my 350W power supply and it runs fine.
Which computer components should you never attempt to service unless you absolutely have to?
Probably those inside the power supply or the hard-drive. The power supply could give you a lethal shock if you don't know what you're doing - and you could permanently damage the hard-drive if you opened it !
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.
Disadvantages of computers in a computer based organisation?
The disadvantages of a computer system is that it needs exact instructions in order to perform the desired operation. One slip and the computer will not know to do, while a human would know what to do even if a word was spelled wrong.
Can you upgrade your processor and power supply?
Of course, however you have to know the type of processor you can handle. You may have a HP, DELL, COMPAQ, or other brand written on your computer. Go to their site and put in the product key on the computer, it should direct you to your model. Now you can look at the specs on your motherboard and it should tell you what your motherboard is aloud to upgrade to for you processor. As for the power supply =, you may want a specialist to look and see what kind of power supply you should buy depending on what your trying to do. Hope this helps!
