Give RAM a teammate
Matching memory modules in the motherboard's recommended dual-channel slots improve available bandwidth. One stick can run, but it is carrying the whole squad.
Airflow needs a route
A clear front-to-back or bottom-to-top path usually beats fans fighting in conflicting directions. More fans do not automatically unlock wind-tunnel DLC.
Size the PSU, don’t flex it
Size the power supply for the actual parts, transient load, and reasonable headroom—not the biggest label available. Wattage is a requirement, not a flex number.
Contact, not frosting
A small centered application is normally enough for a modern CPU cooler. The goal is good contact, not frosting a motherboard cupcake.
Read the board label twice
Update with stable power and the exact firmware for your board when compatibility or fixes require it. Double-check before giving the motherboard a personality transplant.
Refresh rate is a full chain
Resolution, refresh rate, cable, GPU port, and monitor input must all support the target mode. One wrong link can make 240 Hz cosplay as 60 Hz.
Fans can see the spaghetti
Keep cables clear of fan blades and avoid sharp bends at power connectors. The back panel may hide the spaghetti; the fans still know.
Support the heavyweight
Install a heavy graphics card squarely and support it when sag is visible or the vendor recommends it. The PCIe slot did not volunteer for a deadlift PR.
Write patch notes for your rig
Record exact parts, settings, and changes to make troubleshooting and future upgrades easier. Future you deserves patch notes.
