The power supply is a component of the system unit, which supplies power to all other functional elements of the computer: motherboard, hard drive, RAM, drive. The required power of the power supply will directly depend on what components are installed in the computer.
Necessary
- - computer with Internet access;
- - browser.
Instructions
Step 1
Go to the site https://www.hardware-portal.net/readarticle.php?article_id=32. There is a list of processors and video cards with an approximate value for power consumption. To find out the required power of the power supply, select your processor model (for example, Core 2 Duo E6700 - 62 W), then determine how much your video card consumes (for example, GeForce 7950GT - 61 V). Then determine how much other components are consuming on average. For example, you have 2 GB of RAM (about 20 W), a hard drive (on average, 25 W) and two coolers (8 W). In total, we get about 170 watts in total. You always need to take into account the value with a margin, therefore, the calculation of the power supply in this case gives the result - 200 watts
Step 2
Go to the site https://www.casemods.ru/services/raschet_bloka_pitania.html and use the online PSU power calculator to find out which PSU to buy. In the first field, select the brand of the processor (for example, Athlon-64 4000+), the power in the next field is set automatically, depending on the type of processor you have selected. Next, in the "Overclocking" field, set its value, if, of course, you overclocked your processor. Next, set the value for the CPU cooler. In the next field, set the number of hard drives on your computer and optical drives. For example, you have 2 hard drives and 1 drive. Next, set the wattage of your motherboard to find out the wattage of your PSU. In the next field, set the number of fans. Next, set the number of memory chips
Step 3
Select the model of your video card in the next section - this is also necessary in order to determine the power of the power supply. For example, you have a GeForceFX 5900. Next, the power value for the video card will be automatically substituted. Set the overclocking value, if any. The power value for your computer will be displayed below. The first number is the power consumption of the processor, then the total power and the last number is the peak power of the computer. Be guided by the last digit when purchasing a power supply. In our example, we got 234 watts. Therefore, the power of the power supply must be at least this figure.
