Difficulty: Moderately Easy
Step1
Ensure that the computers you are considering are equipped with two video cards. Each monitor requires its own video card in order to connect to the computer. Ideally a dual monitor PC is equipped with two identical video cards.
Step2
Check the specifications of the computer and video cards. Make sure that the computer's motherboard, power supply and heat sink or fan can handle the extra demand of two video cards, especially if the video cards are rated for graphics and gaming.
Step3
Take a look inside the computer case. Visually confirm that the video cards are near the computer fan or heat sink or that they have individual fans. Also, inspect the slot space for the video cards to determine if a future upgrade is possible when needed.
Step4
Measure the available desk space for two monitors. Some monitors have built in speakers which makes a more efficient use of desk space if audio quality is not an important factor for you.
Step5
Choose identical monitors for your dual screen PC system. Two of the same monitors with the largest viewing screen area your desk allows minimizes eye strain.