Computer Information on Hardware and Software
Computer Information on Hardware and Software should help you understand your PC, solve problems, plan upgrades, and choose the right next step. Explore practical guides, focused calculators, and free Windows software built from real-world IT experience.
Plan and improve your PC
Decide whether to upgrade or replace, size a power supply, and check how well your parts work together. More tools help you tune the PC you already have, from airflow to RAM settings.
Should I Upgrade My PC or Buy a New One?
Compare age, condition, upgrade cost, and expected improvement before spending money.
OPEN TOOL →PSU Wattage Calculator
Find the right power supply size for your PC build, with headroom done properly.
OPEN TOOL →PC Bottleneck Calculator
Check CPU and GPU balance before you plan your next upgrade.
OPEN TOOL →Go further with Computer Info Bits Pro
One subscription gives you both Pro features, plus every new premium tool we add.
3D PC Airflow Simulator
Build your own fan layout in five case styles, or start from 26 ready-made ones. See case pressure and the air reaching your graphics card, then compare and share layouts.
Calculator reports
Print results from seven of our calculators, or save them as PDFs. Add your notes, business name, and logo.
US$5 A MONTH OR US$35 A YEAR · CANCEL ANYTIME
Practical computer guides
Understand the parts, check suspected problems, and improve a PC with clear steps written from real-world IT experience.
Parts of a Computer and Their Functions
Learn what each component inside a PC does and how they all work together.
PC Airflow Optimization: How to Cool Your Computer
Set up your case fans correctly to keep temperatures low and reduce dust buildup.
How to Check If a GPU Is Working Properly
Confirm Windows detects the card, check the intended GPU and its fans under load, compare one benchmark, and isolate a likely fault.
Find your PC information with CIB PC Reporter
Read hardware details, temperatures, drive health, and driver information in one clean, exportable report. It is free, with a standalone option that runs without installing.