Fortnite Performance Mode: DX11 vs DX12 Tested
Legacy Performance Mode produced more FPS and higher lows in our test, while DX12 Performance Mode had fewer noticeable random drops. Here is how to choose.
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RTX 5090 Low Performance and PCIe Troubleshooting Guide
Before changing NVIDIA settings, verify that the RTX 5090 has the PCIe bandwidth, power connection, PSU capacity, drivers, and cooling it needs under load.
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X3D Gaming Mode: Should You Enable It in BIOS?
X3D Gaming Mode can disable SMT, global C-states, and a second CCD. That can help selected games, but it is usually the wrong global setting.
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Ryzen 9 9950X3D Gaming Setup: Fix Wrong CCD Cores
Keep games on the Ryzen 9 9950X3D's V-Cache CCD. Process Lasso is our preferred method for better performance and consistent CCD0 placement.
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NVIDIA GPU Overclock and Undervolt Guide
Find your NVIDIA GPU's stable core and memory ceiling first, then reduce voltage while preserving as much of that performance as possible.
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Updated NVIDIA Optimization Guide
Start with the driver, check GPU-Z, verify your PCIe connection, then set up the NVIDIA App for cleaner FPS, lower delay, and fewer setup mistakes.
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Best PC Optimization Software for Gaming: Tools From Our Guides
Explore the tuning and monitoring tools covered in our guides. Find the right use case, read the steps or watch the walkthrough, then test on your own PC.
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Remove the Big 3 Motherboard Apps to Reduce Windows Background Processes
Start with unused motherboard utilities: ASUS Armoury Crate, MSI Center with its SDK, and Gigabyte Control Center. Remove what you do not need without breaking hardware controls.
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Why Is My PC So Slow? Causes and Fixes for Windows 11
Find why your computer or laptop is running slow, identify the resource under pressure, and choose a fix based on the symptom rather than a cleanup checklist.
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How to Fix the Blue Screen of Death (BSOD) in Windows 11
A Windows stop code is a clue, not a complete diagnosis. Use a safe sequence to investigate “your device ran into a problem” errors without guessing at drivers.
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Why Is My Internet Slow on My PC? Wi-Fi, Ethernet, Ping and Packet-Loss Fixes
Separate download speed, latency and packet loss. Test one PC against another device before changing network settings or buying a gaming router.
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Computer Keeps Freezing or Not Responding? Causes and Fixes
Diagnose one frozen program versus a whole-PC lockup. Preserve your work and use a repeatable process for software conflicts, memory, storage and temperature.
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How to Fix FPS Drops and Stuttering in PC Games
A high average FPS can hide uneven frame delivery. Identify shader stutter, CPU/GPU limits, resource pressure and network problems before changing settings.
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How to Fix 100% Disk Usage in Windows 11
100% disk activity does not mean the drive is full. Check the workload and response time before disabling services or replacing an SSD.
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Why Is My CPU Usage So High? How to Lower It
High CPU usage is not automatically a fault. Diagnose sustained background load, game bottlenecks and clock-speed problems before applying a fix.
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Why Is Windows Using So Much RAM? High Memory Usage Explained
90% RAM usage is a signal to investigate, not proof of bad memory. Separate useful caching from memory pressure, application growth and insufficient capacity.
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Why Does My PC Take So Long to Start? Fix Slow Windows Boot Times
Time the stage before Windows, the login screen and the desktop separately. Startup apps cannot explain every long boot, especially on DDR5 systems.
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Why Is My PC Overheating and Why Is the Fan So Loud?
A loud fan does not automatically mean overheating. Compare workload, temperature and clock behavior, then check cooling without disabling thermal protection.
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Windows 11 25H2 vs 23H2 vs Windows 10 for Gaming in 2026
I tested all three Windows versions on the same optimized system with a Ryzen 7 7800X3D and RTX 4080. Here is what the benchmarks actually show in Fortnite, Call of Duty, and CS2.
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How to Dual Boot Windows Without a USB Drive
Install a completely separate Windows as a dual boot without touching your current setup and without a USB drive. Just an ISO, a script, and a partition.
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Best Fortnite Settings and Tweaks for FPS in 2026
The current Fortnite update changed how you should think about settings. This covers everything: launcher, in-game, rendering mode, Nvidia Control Panel, and Windows.
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I Optimized a Ryzen 5 3600 and GTX 1650 Gaming PC in 2026
A stock Ryzen 5 3600 and GTX 1650 looked finished in 2026. After BIOS, RAM, Windows, driver, and game tuning, it became a playable competitive PC again.
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Best Black Ops 7 Graphics Settings for PC: Xilly Tuning Guide
Complete PC Optimization Guide
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Your Game Is Running in the Wrong Presentation Mode
Your game might be running in the worst possible presentation mode right now - and you have absolutely no idea. This one setting is adding input lag that no mouse, no monitor, and no PC upgrade will ever fix. Here's how to check it and correct it in under 60 seconds.
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AMD DDR5 Timing and Latency Optimization Guide
Configure AMD DDR5 frequency, voltages, primary timings, and subtimings around the actual memory IC and controller instead of copying one universal preset.
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Ryzen 7 9800X3D BIOS Settings for Gaming: ASUS Setup Guide
This is the exact BIOS configuration I run on every 9800X3D system that comes through Xilly, from BIOS updates through Precision Boost Overdrive, Curve Optimizer, memory tuning, and fan control.
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RTX 5090 and 50 Series Optimization Guide
A practical RTX 5090 and 50-series setup covering clean drivers, NVIDIA settings, Profile Inspector, Resizable BAR, and measured GPU tuning without promising one universal gain.
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Optimizing Intel i9 for Gaming: The Ultimate Gigabyte Z790 Guide
A step-by-step guide to optimizing Intel i9 performance on Gigabyte Z790 motherboards, preventing CPU degradation and ensuring stable gaming performance.
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Best PC Optimization Services: How to Choose Safely
There are not five interchangeable services we can honestly endorse. This guide compares the main optimization approaches, their limits, and the evidence buyers should require.
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Xilly vs. Another PC Optimization Service: Measured FPS Comparison
We compared Xilly Core with another paid PC optimization service on the same test system. The provider remains anonymous so the focus stays on scope, methodology, and measured results.
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