We demonstrate how to upgrade a PC for super-silent, energy-efficient, ice-cool performance.
Install a cooler, quieter graphics card and PSU
Step 1. Uninstall the drivers for your old graphics card to prevent a conflict with your new card. Most new graphics cards are recognised by Windows and their drivers are automatically installed. Go to Control Panel, Uninstall a program. Double-click your graphics card driver, then click Yes to uninstall it.
Step 2. Power down your PC, unplug it from the mains and discharge any static before opening up the case. Remove any screws or clips that may be holding the existing graphics card in place, then gently prise it out. Remove the two four-pin power connectors that run to the PSU.
Step 3. Hold your new graphics card with the fan at the bottom. Locate the clip on the righthand side after the PCI Express connection bridge. Now push the card in from the right. The Zotac card we’re using draws less power than the card it’s replacing. Now screw it in at the back to secure it.
Step 4. Boot up the machine, cancel Windows’ automatic driver installation and then install the drivers from the disc that accompanied your new card. Reboot the PC to allow the graphics card to be recognised. You should now have an energy-efficient, quiet graphics card powering your system.
Step 5. Now let’s install the new PSU. Unscrew and remove the old unit. Note down which power cables go to which components before you pull them out. Unplug the 24-pin ATX connector attached to your motherboard and the five-pin ATX connector located near the processor.
Step 6. Fit the new PSU. We’re using a Nexus RX-6300. First plug in the ATX leads. The Nexus comes with a six-pin PCI Express connection for our graphics card, but you’ll need to plug in leads for the fans and optical and storage drives. Screw the unit into place, close the PC case and reboot.