.. Contd. If You are building a PC using Expensive Parts, It is recommended to Use An Equally Expensive PSU for better protection and smoother filtered power supply which will result in their longer life.

Office PCs with minimum workload can use Low Cost PSU's While PC's dedicated for Billing counters or 24X7 Environments shall consider Higher-end PSU's.

Sparingly used PCs can use these inexpensive SMPSs. Standard PSU costing anything upto Rs.1000 is all right. Surprisingly Branded PCs sold at premium prices also use these entry level PSU's which actually sell at around Rs.400-700.

Capacity :A Standard Configuration PC will do well with 400 to 600 Watt SMPS. A Cut down configuration, like a diskless node works fine with even a 250 Watt power supply. As the configuration grows, a higher capacity PSU shall be considered. A Full Blown Server with Two CPU's, Four Hard drives, Raid, 64gb Memory etc. needs a 1000W PSU. A Gaming Powerful CPU with Two Intensive GPU's, 27 inch 3D Monitor, HDD and SSD may need a minimum of 800W PSU.

You don't need to be an engineer to understand what capacity psu your PC will need. 450 Watts is Your Basic Requirement - Add - 50 or 100 Watt extra for future expanded requirement. Add - Another 50 or 100 Watt - if budget allows to keep Sufficient Gap between What Your PC NEED and What is AVAILABLE.

Click here after you have Selected SMPS for next step