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10 Questions About Cellular Phones Answered
  1. What's the difference between analog and digital phones?
  2. What is a Dual Band Phone?
  3. What type of battery has the longest life?
  4. What's the difference between the Stand-by time and Talk time?
  5. What is a roaming charge?
  6. What are peak and off peak hours?
  7. What are anytime minutes?
  8. Do I pay for the call when someone calls me?
  9. Should I buy a cell phone or look for a free cellular phone?
  10. What to do if you want to upgrade/downgrade or cancel your service plan?
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Articles

Learn about Computer Power Supply

If there is any one component that is extremely vital to the operation of a computer, it is the power supply. The power supply should be the highest priority when choosing components; if working with a set budget, invest in the power supply and compromise elsewhere. The power supply is perhaps the most significant module in every computer system as it supplies stable, consistent power to every other component in the system, Power supply must not produce and dissipate too much heat or noise. Bad power supplies are almost always overrated in their peak wattage number. A thumb rule is that one should purchase as much good quality power supply as one can afford to ward off power sudden breakdowns, data corruption and possibly physical component damage.

If you are building a brand new system, go for anything over 400 watts. Select the Power supply that fit into the cabinet you have chosen. Also make sure that there is enough clearance so that it does on interfere with other occupants of the cabinet. Choose a Power supply compatible with the motherboard and the other component you are planning to fit into the case and also that offers additional plugs in case of up gradation of computer later on.

Almost all computer power supplies have three voltage rails (3.3V rail, the 5V rail, and the 12V rail). Wiring coming off an industry standard circuit board will be: ORANGE : +3.3V YELLOW : +12V BLUE : -12V RED : +5V WHITE : -5V (May not be present on recently manufactured supplies) BLACK : GND GREEN : POWER-ON (Active high -- must be shorted to ground to force power up) GRAY : POWER-OK PURPLE : +5V STANDBY BROWN : +3.3V REMOTE SENSING (please check with the specification of the manufacturer which may vary) Ensure that the sockets fit into the components well.

Go for one with 20-pin/24-pin ATX Socket (as required) and enough 12V Molex Sockets (4-Pin Molex Connector/Serial ATA Connector/PCI-Express Connector) to power different peripherals inside the computer box. Now-a-days modular power supplies are available where the cable can be plugged and unplugged to many sockets provided in the power supply. In this case one has to use only as much cables as needed. This prevents the inside of the cabinet from cluttering. It is wise to use sleeved cables.

Go for the power supply with a cooling fan and lesser noise. Never trust a vender for his words. Go for superior, trusted and reliable one, even if it costs more.

It will give you years of comfort. I must repeat again that the power supply should be the highest priority when choosing components; if working with a set budget, invest in the power supply and compromise elsewhere.

JBO Solutions offers all type of computer hardware, computer software and computer servcies. You can visit our website and talk to a live person or you can purchase online at JBO Solutions



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