Tune & Build: PC Assembly for Beginners— Part 3
Episode 3 of the 4-part Mount & Melody PC build series focuses on connecting every case cable, tidy cable management, and performing the first power-on and BIOS checks.
What you'll learn:
Connect PSU main power: `24-pin ATX` and `8-pin/4+4 CPU` power
Hook up GPU `PCIe` power (if needed), SATA power/data to drives, and M.2 confirmation
Attach case front-panel headers: `Power`, `Reset`, `Power LED`, `HDD LED`, `USB`, `Audio`
Connect case fans and motherboard fan/RGB headers; organize RGB/ARGB cabling
Cable management: routing behind the tray, using `zip ties`, Velcro straps, and proper tension for airflow
Safety & checks: anti-static tips and secure screw torques
First power-on (POST) procedure: safe power-up, symptom checks (fans, LEDs, beeps, smells)
BIOS/UEFI checks: confirm CPU/RAM recognition, storage devices, set boot order, check temps, save & exit
Quick troubleshooting: no POST, blank screen, or unexpected beeps — basic steps to isolate the issue
Pro tips included: labeling cables, basic fan curve and temperature checks in BIOS, and minimal changes before first boot to simplify troubleshooting. Perfect for beginners following the Mount & Melody 4-part build course.