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How much current can a USB port on the back of a computer supply?
Wiki User
∙ 14y ago
500 ma at 5v
http://www.auspcmarket.com.au/index.php?redir=http://www.auspcmarket.com.au/show_product_info.php?input[product_code]=PS-SKUSBPC&input[category_id]=
Wiki User
∙ 14y ago
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How much current can a USB port on a back of a computer supply?
shaquan brown
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It's hard to get your heed around, but all the electricity that goes into your computer is turned to heat. If you know how much energy your computer draws in watts, you can calculate the heat output in BTUs. BTUs = Watts x 3.412 If you know how much energy your computer consumes in Amps, you can convert amps to watts with the following: Watts = Amps x Volts. This should be listed on the power supply. Don't be confused by the DC rating of power supplies. The above calculations refer to the amount of AC your computer takes in from the wall socket, not how much the power supply delivers inside the computer as DC. Because computers have sophisticated power saving features, the idle current, the average current, and the rated current will vary significantly. Idle current can easily be 1/2 the rated current.
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If you having a power outage, you can do one of two things, depending on the condition. If it's just the computer that's going out, it may be that the CPU is overheating, and you need to see if the CPU fan is compatible with the CPU. If it is a power outage in the entire house, you may want to replace your current hard drive with one that will periodically back up your current session. Unfortunately, installing an uninterruptible power supply won't help much; the power supply doesn't create the power, it just converts the electricity into something that the computer can use. So if there is no electricity, the power supply has nothing to convert. Hope this helps! SeanHolshouser
What a computer power supply does?
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What does power supply on a computer do?
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How much current flows in a 12 watt radio connected to a 120 volt supply?
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MY computer is not workingi turned off my computer and i went to sleep n then tomorrow i woke up n turn on my computer n i can't see anything ...yplzzz help me guys thanks u very much.....?
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