There are a sufficient number of sites on the Internet where you can calculate the power of the power supply. To do this, it is enough to indicate the number and system characteristics of the system unit devices.
Instructions
Step 1
Type in the address bar of your browser the address of one of the online power supply power calculators.
Step 2
Indicate for what purposes the computer is used (home, work, server).
Step 3
Indicate the brand of the processor you are using (Intel, AMD, etc.) and its system characteristics.
Step 4
Specify the brand of the video card you are using and select its type from the list. Select from the list the number of video cards running on the computer (usually "1"),
Step 5
Select the type and size of your computer's RAM. Please note: the size should not be specified in megabytes, since power consumption is affected only by the number of "RAM" modules installed in the computer's motherboard.
Step 6
Select the number of optical drives installed on your computer. Some online calculators offer you to select their type from a list. So, for example, first it is proposed to indicate the number of CD-drives, then - DVD, after - CD-DVD combine drives.
Step 7
Indicate how many IDE devices you have on your computer. Select the number of devices connected via the IEEE 1394 bus from the list.
Step 8
Indicate what devices are installed in PCI slots (brand, system characteristics of TV tuner, audio cards, etc.).
Step 9
Specify the number of USB and FireWire devices available on your computer. If one of the connectors is not in use, uncheck the box against it.
Step 10
In the last field of the online calculator, indicate the number of fans or coolers that cool the system unit (including the cooler on the processor).
Step 11
Enter data. After that, you will be offered the recommended power of the power supply, to which, for reliability, it is better to add another 100-150 W, since the data you specified may be incomplete.
