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There's a 12V and a 5V supply.

The 5V is for the logic. The 12V supply is for the motor.

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Q: How many volts is a hard drive?
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How many volts need a hard drive?

No volts need a hard drive. However hard drives need a voltage. Usually about 5 for the data more for the physical movement of the drive.


How many types of hard drive are there?

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Why are volts needed?

Volts are the "electromotive force" that is needed to "drive" the electricity through the wiring.


Is it safe to run a 220 volt AC to 12 volt DC step down transformer in a 110 volt outlet and will it transform it to 6 volts or will it run at 12 volts?

Since there is an AC to DC converter in there, it's hard to say. If it's a basic transformer to rectifier to capacitor design it will put out 6 volts. If it is a transformer to a voltage regulator it's hard to say what will happen. Certainly the drive voltage to the regularor will be cut in half. It may or may not run, but won't be able to run at 12 volts because there won't be any 12 volts to drive the regulator. (There will only be 6 volts.) If it is a switcher it may work fine or it may do nothing.


Why can't a playstation 3 work without a hard disk drive?

The PlayStation 3 is not designed to work without a hard drive. When the hard drive is worn out after many rewrites, the PlayStation 3 will no longer function and the hard drive should be replaced.


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It has a 1TB hard drive already, and there is space to add one other hard drive.


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What diffrance between HDD FDD?

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If a hard drive is constantly spinning, there is likely too many background programs running. Remove or restrict the programs to slow down the hard drive.


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The easiest way to make an internal hard drive portable is to purchase what's called a hard drive enclosure. Hard drive enclosures are kits that have everything you need to make your own portable hard drive. Make sure you get a hard drive enclosure that matches the size and interface type as your hard drive, as well as the means of connectivity that you wish. As an example, you can have a 3.5" IDE hard drive enclosure that connects to your computer with a USB cable. Most computer stores have hard drive enclosure. The best place to get one is probably tigerdirect.com. There are many of them available on eBay.