Lesson 1Cooling System (fans, heat sinks, thermal paste, laptop cooling): heat management and performance consequencesIt detail how PC dem generate heat an how fans, heat sinks, an thermal paste remove it. Learners relate poor cooling to throttling an crashes, den practice cleaning, airflow planning, an safe paste replacement pon desktops an laptops.
Sources of heat inside a PCFans, heat sinks, and airflow pathsThermal paste purpose and careLaptop cooling limits and tipsCleaning dust and checking airflowLesson 2Storage Drives (HDD, SSD, NVMe): function, speed differences, capacity planningIt cover how HDD, SATA SSD, an NVMe drives store data, differ inna speed, an affect boot an load times. Learners compare interfaces, plan capacity fi OS an data, an apply basic health checks an replacement strategies.
How HDDs store and access dataHow SSD and NVMe store dataSpeed impact on boot and appsChoosing drive size and layoutChecking drive health and lifespanLesson 3Peripheral interfaces (USB, HDMI, audio): common issues and simple fixesIt review USB, HDMI, DisplayPort, an audio jacks, including data an power roles. Learners match symptoms like no display or no sound to likely causes, den apply safe cable checks, port cleaning, an basic configuration fixes.
USB types, speeds, and power limitsHDMI and DisplayPort basicsAnalog and digital audio connectorsDiagnosing common port problemsSafe cleaning and cable checksLesson 4Power Supply Unit (PSU): power delivery, symptoms of failure, safe checksIt explain PSU purpose, form factors, an power ratings, den link unstable systems to power issues. Learners practice safe visual checks, basic multimeter tests, an recognize when replacement safer than further diagnosis.
PSU role in AC to DC conversionWattage, rails, and efficiency ratingsRecognizing PSU failure symptomsSafe visual and smell inspectionsUsing a PSU tester or multimeterLesson 5Motherboard and Chipset: component interconnections, BIOS/UEFI basics, impact on upgradesIt explore motherboard layout, chipset roles, an how buses connect CPU, RAM, an devices. Learners review BIOS or UEFI basics, boot order, an firmware updates, den assess upgrade options based pon sockets an supported standards.
Main motherboard components mapChipset roles and bus connectionsRAM slots, PCIe, and storage portsBIOS or UEFI setup and boot orderUpgrade limits from sockets and chipsetLesson 6Random Access Memory (RAM): purpose, how it affects multitasking and responsivenessIt explain RAM role inna active tasks an how capacity an speed affect responsiveness. Learners relate multitasking slowdowns to memory limits, check usage inna tools, an apply basic seating, slot, an test procedures.
How RAM differs from storageCapacity needs for common tasksRAM speed, channels, and latencyRecognizing low memory symptomsReseating and testing RAM modulesLesson 7Central Processing Unit (CPU): role, performance impact, and indicators of issuesIt explain CPU responsibilities, core an thread concepts, an how clock speed an cache affect performance. Learners link high usage, heat, an throttling to slowdowns, an practice basic monitoring an stability checks.
CPU tasks in system operationCores, threads, and workloadsClock speed, cache, and IPC basicsMonitoring CPU temps and usageCommon CPU bottleneck symptomsLesson 8Hardware-related symptoms and user-level diagnostics: labeling overheating, slow performance, no boot and initial checksIt focus pon translating user complaints into hardware clues. Learners map symptoms like no boot, freezes, or fan noise to likely components, den apply structured, low-risk checks to narrow causes before advanced repair.
Collecting clear user problem reportsNo power or no boot initial checksSlow or freezing system triageOverheating and fan noise cluesWhen to stop and escalate repairLesson 9Network Adapter (Ethernet/Wi-Fi): role, basic troubleshooting steps for connectivity issuesIt describe wired an wireless adapters, link speeds, an IP basics. Learners follow a structured checklist fi no-link an no-internet issues, including cable checks, Wi-Fi signal, drivers, an simple reset steps before escalation.
Ethernet ports, speeds, and cablingWi‑Fi standards and signal factorsChecking link lights and statusIP settings and simple reset stepsUpdating or reinstalling driversLesson 10Laptop Battery and Power Management: battery health, calibration, and how it affects shutdowns and performanceIt cover how laptop batteries store energy, age over time, an affect performance an shutdown behavior. Learners review health metrics, calibration steps, power plans, an safe handling, plus when replacement recommended.
Battery chemistry and wear over timeChecking battery health indicatorsCalibrating charge and dischargePower plans and performance modesSafe handling and replacement cues
