PWM vs DC PC Fans: 4-Pin vs 3-Pin Fan Control Explained
Compare PWM and DC PC fan control, 4-pin and 3-pin headers, fan curves, compatibility, minimum speed behavior, and what motherboard fan modes actually change.
PC technology guides
Find the right technical guide without digging through an archive.
Start with the latest work or narrow the server-backed directory to troubleshooting, compatibility, explainers, or tutorials. The index stays bounded as the publication grows.
Latest guides
Recent technical guides
The newest public explainers, tutorials, compatibility guides, and troubleshooting articles.
Windows 11 Apps Won’t Open: Repair, Reset, and Reinstall
Troubleshoot Windows 11 apps that will not open or close immediately by isolating one-app failures, repairing app data, checking conflicts, and escalating safely.
High-Refresh Esports Gaming PC Build Guide
Plan a PC around 240 Hz and 360 Hz-class competitive gaming by separating refresh rate, rendered FPS, frame time, CPU/GPU limits, latency, memory, VRR and display constraints.
Motherboard VRM Explained: Phases, Power Stages, and CPU Power
Understand motherboard CPU VRMs, including PWM phases, power stages and MOSFETs, chokes, capacitors, phase doublers, parallel stages, cooling and why phase count alone is not a quality score.
Monitor Color Gamut Explained: sRGB, DCI-P3, and Adobe RGB
Understand monitor color gamut, sRGB, DCI-P3 and Adobe RGB, plus the difference between gamut coverage, gamut volume, color accuracy, calibration and HDR.
Wi-Fi vs Ethernet for PC Gaming
Compare Wi-Fi and Ethernet for PC gaming: latency, jitter, packet loss, interference, link speed, network paths, and when a wired test is useful.
SATA Data and Power Connectors Explained
Understand SATA data versus SATA power connectors, where each cable connects, how desktop SATA drives are wired, and what to verify before adding a drive.
PC Powers Off During Startup: Troubleshooting Guide
Diagnose a desktop PC that starts and then loses power before POST by separating PSU protection, power connections, case wiring, CPU/cooler work, memory, firmware, and minimum-hardware tests.
Frame Generation Explained for PC Gaming
Understand rendered and generated frames, base frame rate, displayed FPS, latency, frame pacing, VRR, upscaling, and modern single- and multi-frame generation.
1440p Gaming PC Build Guide
Plan a 1440p gaming PC around your games, frame-rate and image-quality target, then balance GPU performance, CPU headroom, VRAM, memory, storage, power, cooling, and display capability.
PCIe x16 vs x8 for Graphics Cards
Compare PCIe x16 and x8 GPU links by electrical lane width, generation, theoretical bandwidth, motherboard routing, link negotiation, and workload limits.
How to Use System Restore in Windows 11
Use System Restore in Windows 11 from the desktop or Windows Recovery Environment, create restore points, check affected programs, and understand what restoration changes.
Keyboard Rollover, Ghosting, and NKRO Explained
Understand keyboard rollover, 6KRO, NKRO, ghosting, anti-ghosting, matrix limits, and why USB does not impose a universal six-key limit.
PC Front-Panel USB Compatibility Explained
Match a PC case front USB-A or USB-C cable to the correct motherboard internal header, data rate and feature support before building or upgrading.
ATX vs Micro-ATX vs Mini-ITX Motherboard Sizes
Compare ATX, Micro-ATX, and Mini-ITX motherboard dimensions, mounting and case-fit implications without confusing board size with chipset features or performance.
Mechanical vs Membrane Keyboards Explained
Compare mechanical and membrane keyboards by switch mechanism, key feel, noise, serviceability, rollover, durability claims, and the hybrid designs between them.
PC Wakes From Sleep but Monitor Stays Black
Diagnose a Windows PC that appears to wake from sleep but leaves the monitor black, separating failed resume, display-link, graphics-driver, and monitor-path problems.
CPU SMT Explained: Cores, Threads, and Logical Processors
Understand simultaneous multithreading, logical processors, shared CPU-core resources, Hyper-Threading, and why SMT performance depends on workload behavior.
Windows Page File Explained: Virtual Memory and Commit Limit
Understand what the Windows page file does, how it extends the system commit limit, how paging differs from RAM use, and why crash dumps can depend on it.
CMR vs SMR Hard Drives Explained
Understand how CMR and SMR hard drives differ in track layout, rewrite behavior, host requirements, and suitability for PC, NAS, RAID, backup, and archive workloads.