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How to Check Monitor Color Gamut: sRGB vs NTSC Impact on Office Work & Professional Design Announcements Buyer Guide Comprehensive Tips Occasion Product Review Q&A Tutorials Many users feel confused about color gamut parameters when buying all-in-one PCs or design monitors. Most people cannot tell the difference between sRGB and NTSC. They also do not know how different color gamuts affect office work and professional design results.In fact, the screen color gamut is the core factor that determines color authenticity. For commercial all-in-one PCs and design displays, the color gamut directly decides the quality of work outputs. What Is Monitor Color Gamut? How to Check It Correctly First, let’s clarify the basic definition of color gamut. Color gamut refers to the range of colors that a screen can display. In short, higher color gamut coverage means richer and more delicate screen colors.sRGB and NTSC are the two mainstream color gamut standards for modern all-in-one computers and monitors. Many merchants mark color gamut percentage values, but most users cannot verify their authenticity or are misled by the numbers. There are two simple and effective ways to check your monitor’s color gamut. First, check the official product specifications. Standard devices clearly list sRGB and NTSC coverage data. For example, premium commercial all-in-one PCs with 97% sRGB and about 70% NTSC coverage are industry high-quality standards. Second, test with professional color calibration software. This method detects the real color gamut accurately. It avoids false parameter marking and is suitable for professional designers. In addition, avoid a common misunderstanding. Higher color gamut values do not always mean better performance. Different scenarios match different color gamut standards. Core Differences and Conversion Misconceptions Between sRGB and NTSC Many merchants create information gaps using color gamut parameters when selling all-in-one PCs and monitors. To understand their differences, first remember the industry golden conversion formula: 100% sRGB color space volume is approximately equal to 72% NTSC.First, sRGB is the globally recognized mainstream color gamut standard, co-developed by Microsoft and HP. All Windows systems, web browsers, and most design software (such as Photoshop) use sRGB as the default color standard. The core value of sRGB is “what you see is what you get” — the images you see on your screen will have consistent colors when sent to clients, uploaded online,e or printed.Second, NTSC is a traditional color gamut standard for early color televisions. It was created earlier and has a wider basic color range than sRGB. However, since modern operating systems lack native color management for NTSC, its practical value is much lower than sRGB.More importantly, blindly pursuing high NTSC values will backfire. If you buy a 92% NTSC wide-gamut monitor without professional color calibration or loading the corresponding ICC profile, you will experience severe color oversaturation. For example, red will become an eye-straining “bleeding red,” and green will be overly bright, which actually affects office reading and design color accuracy. Why Commercial Office Prioritizes High sRGB Over High NTSC Many people mistakenly believe that “72% NTSC sounds smaller than 99% sRGB, so the quality is worse”. This is the most common purchasing misconception.For daily office work, an all-in-one PC with 72% NTSC (approximately 100% sRGB) can perfectly restore the true colors of web pages, documents, and PPTs. It delivers clean and natural images, clear text, and will not cause obvious visual fatigue even after long-term use.On the contrary, if you buy a low-end,d cheap 45% NTSC screen, the picture will appear pale and gray with missing color layers. It not only affects the viewing effect of charts and images, but also accelerates eye fatigue and reduces work efficiency during long office hours.Even if an all-in-one PC has 70%+ NTSC coverage, insufficient sRGB coverage will still lead to distorted web colors and image chromatic aberration. This is why commercial all-in-one PCs always prioritize sRGB parameters first. Professional Design: sRGB Is the Foundation, Advanced Work Needs DCI-P3 and Adobe RGB Professional design requires not only “large color coverage” but also “high color accuracy”. Color deviation will directly ruin design works and cause double losses of time and cost.First, mainstream design work such as graphic design, UI design, e-commerce art, and short video editing must rely on high-sRGB monitors. Over 97% sRGB coverage, combined with ΔE ≤ 2 color accuracy, can accurately restore the original colors of materials and ensure color consistency of design works across different devices.Second, for modern professional design, in addition to 99%+ sRGB coverage, different sub-fields also need to pay attention to advanced color gamut standards: Video editors and colorists should focus on the DCI-P3 gamut (digital cinema industry standard) Print publishing and commercial photography practitioners should prioritize Adobe RGB gamut (printing industry standard). The  The NTSC gamut has gradually faded into the background in modern digital design, only serving as an auxiliary reference for basic display parameters. Final Tips for Office & Design Display Selection We can conclude clear selection rules from the above analysis. First, for home and enterprise daily office use, choose all-in-one PCs with 90%+ sRGB coverage. This corresponds to about 65%+ NTSC and fully meets all conventional office scenarios. Second, for professional graphic design, UI design, and short video creation, select monitors with 97%+ high sRGB color gamut, and pay attention to ΔE ≤ 2 color accuracy. Third, for advanced professional scenarios such as video editing and print publishing, additionally focus on DCI-P3 or Adobe RGB gamut coverage on the basis of high sRGB. Fourth, do not blindly pursue high NTSC values. Uncalibrated high-NTSC wide-gamut screens will instead bring color oversaturation problems and affect the user experience. A high-color-gamut all-in-one PC greatly improves office efficiency and design accuracy. It serves as a reliable hardware support for commercial offices and creative creation. HYSTOU HYSTOU has established its R&D headquarters in Shenzhen, drawing on over a decade of experience. Our core team members, who previously served at renowned companies such as Inventec and Quanta Computer, form the backbone of our technical expertise. With robust R&D and innovation capabilities, we remain steadfast in

How to Fix Computer Freezes & Prevent It Permanently Announcements Buyer Guide Comprehensive Tips Occasion Product Review Q&A Tutorials Quick Win: 3-Second Emergency Fix for Frozen Computers Random computer freezes can instantly disrupt your gaming, office work, or entertainment. If your computer stops responding to mouse or keyboard inputs, don’t panic. Before digging into complex root causes, use this 3-second keyboard shortcut to try unfreezing your PC immediately. 3-Second Urgent Fix (No Data Loss) Shortcut: Press Win + Ctrl + Shift + B at the same time Effect: Your screen will flicker once, and you’ll hear a beep sound What it does: This forces your graphics card driver to restart instantly. It fixes 80% of random display-related freezes without closing any open programs or losing unsaved work. If this shortcut fails, hold the power button for 5-10 seconds to perform a hard restart. Wait 15 seconds before turning it back on to allow hardware components to reset completely. Advanced Troubleshooting: Fix “No Error Message” Random Freezes The most frustrating type of freeze is when your computer locks up with no error message, no blue screen, and no warning. Most online guides don’t cover this issue properly. Instead of guessing, use these two Windows built-in diagnostic tools to find the exact culprit. Tool 1: Windows Reliability Monitor (Most User-Friendly) How to open: Search “Reliability” in the Windows taskbar search box What it shows: A daily timeline of all system events, including crashes, freezes, software installations, and Windows updates How to use: Look for red “X” icons on the days your computer froze. Click on them to see detailed error reports. You’ll find exactly which software, driver, or update caused the freeze. Tool 2: Windows Event Viewer (Most Detailed) How to open: Press Win + X and select “Event Viewer” Navigate to: Windows Logs > System Filter for: Click “Filter Current Log” on the right and check only “Critical” and “Error” levels Key errors to look for: Kernel-Power (Event ID 41): Indicates unexpected shutdowns, often caused by power supply issues or overheating Display Driver nvlddmkm/amdkmdag: Confirms graphics driver crashes Disk Errors (Event ID 7, 11, 51): Warns of failing hard drive or SSD Common Causes of Computer Freezes Firstly, we need to figure out why a computer freezes. Most freezing issues come from five major aspects. They are overheating problems, faulty software and program conflicts, insufficient system memory, outdated or corrupted drivers, and hardware failures. Most minor freezes are caused by software and overheating. Only a few repeated freezes result from hardware damage. 1. Device Overheating Long-term dust accumulation blocks computer fans and ventilation holes. Poor heat dissipation makes CPU and GPU temperature too high. To protect internal chips, the system will automatically freeze or crash. This is the top reason for laptop random freezes. 2. Software & Program Conflicts Too many startup programs run in the background, consuming system resources. In addition, incompatible third-party software, defective browser extensions, or malware will cause system program crashes and computer freezes. Many users face computer freezes when opening multiple tabs or heavy software. 3. Insufficient Memory & Full System Disk If your RAM is too small to support running heavy games or design software, the computer will freeze instantly. Besides, a full system drive leaves no space for system cache and data operations. It will also lead to slow response and frequent freezes. 4. Outdated or Corrupted Drivers Graphics card, sound card, and motherboard drivers control hardware operation. Outdated, missing, or corrupted drivers will cause abnormal hardware operation. This triggers computer freezes, especially during gaming and video playback. 5. Hardware Aging & Failure Long-term use will lead to aging of RAM, hard disk, and motherboard. Bad sectors on the hard disk and loose hardware connections will cause sudden computer freezes. This usually happens on old computers that have been used for more than 3 years. Targeted Fixes for Different Computer Freeze Scenarios Secondly, we provide simple and effective step-by-step fixes for every freeze cause. All methods are beginner-friendly and require no professional tech skills. Fix Freezes Caused by Overheating First, power off the computer and unplug all power cords. Use a soft brush or compressed air to clean dust on fans and ventilation holes. Secondly, place the laptop on a flat and hard surface. Do not use it on beds or quilts that block heat dissipation. Furthermore, you can equip a laptop cooling pad for long-term high-load use. Finally, replace the thermal paste every 2 years for old computers to improve heat dissipation. Fix Freezes Caused by Software Conflicts When the computer freezes temporarily, press Ctrl + Shift + Esc to open Task Manager. Find programs marked “Not Responding” and click “End Task” to unfreeze the computer. Meanwhile, disable unnecessary startup programs in Task Manager’s Startup tab. This reduces background resource occupation. In addition, uninstall recently installed incompatible software and clean invalid browser extensions. Finally, run a full virus scan with the system antivirus tools.   Fix Freezes Caused by Insufficient Memory & Full Disk First, delete useless files, cache, and unused software to free up system disk space. Keep at least 10GB of free space on the system drive for normal system operation. Secondly, close redundant background programs when running heavy software. If your computer still freezes frequently, upgrade the RAM capacity. It is the most fundamental fix for low-memory computer freezes. Fix Freezes Caused by Abnormal Drivers Open the device manager on your computer. Check for hardware devices with yellow error marks. Right-click the device and select “Update Driver” or “Uninstall and Reinstall Driver”. Moreover, you can download official drivers from the brand’s official website. Official drivers are more stable and avoid compatibility freezes. Fix Freezes Caused by Hardware Faults For desktop computers, power off the device and re-plug the RAM sticks and hard disk data cables to fix loose connections. Use the system built-in disk check tools to scan and repair hard disk bad sectors. If the computer still freezes randomly after all software fixes, send it to a professional

PXE Remote Maintenance: Complete Network Boot Guide Announcements Buyer Guide Comprehensive Tips Occasion Product Review Q&A Tutorials Remote maintenance is essential for IT teams, especially when managing multiple devices across locations. However, many professionals face critical challenges when dealing with unbootable systems or bare-metal machines. PXE remote maintenance solves this problem effectively.It allows you to boot and maintain computers entirely over the network, without relying on local storage like hard drives or USBs. What Is PXE? PXE stands for Preboot Execution Environment. It is a network boot standard developed by Intel. Simply put, PXE lets your computer start directly from its network card, before loading the local operating system.This is the core advantage of PXE remote maintenance. Even if a computer’s hard drive is completely failed or corrupted, you can still boot into a maintenance system over the network. Core Components of PXE PXE relies on three essential services working together: DHCP Server: Assigns IP addresses to clients and tells them where to find the boot server TFTP Server: A lightweight file transfer protocol for sending small boot files Boot Files: Special files that load the maintenance system kernel and environment Common Problems & Deep Troubleshooting Guide While PXE is powerful, it has specific requirements that often cause failures. Below are the most common issues with technical solutions and measurable troubleshooting steps. 1. Critical DHCP Configuration Errors This is the #1 cause of PXE boot failures. PXE requires specific DHCP options that most default DHCP servers do not enable.Critical Note: If your network uses VLANs or multiple subnets, PXE broadcasts will not cross routers by default. You must configure DHCP Relay (IP Helper) on your layer 3 switches to forward PXE requests to your PXE server. 2. Network Connectivity Issues PXE is extremely sensitive to network latency and packet loss. For reliable operation: Ensure client and server are on the same subnet (or DHCP Relay is properly configured) Use Gigabit Ethernet (10/100Mbps works, but is much slower) Test network connectivity with ping -t 192.168.1.100 from another machine Check for duplicate IP addresses on the network 3. Legacy vs UEFI Boot File Mismatch This is a very common mistake. Modern computers use UEFI instead of the old Legacy BIOS, and they require completely different boot files. Using the wrong file will cause PXE boot to fail silently. 4. Firewall Blocking TFTP Traffic TFTP uses UDP port 69. Most operating system firewalls block this port by default. You must explicitly allow TFTP traffic on your PXE server. How to Check If Your Computer Supports PXE Before setting up PXE, confirm that your target computers support network boot. Here are the accurate methods for Windows and Linux systems. Check via BIOS/UEFI This is the only 100% accurate method: Restart your computer Press the boot menu key during startup (usually F2, F10, F12, or Del) Look for options labeled: Network Boot PXE Boot LAN Boot IPv4 PXE / IPv6 PXE If you see any of these options, your computer supports PXE. If not, it does not have native PXE support. Check via Device Manager (Windows) Right-click the Start menu and select Device Manager Expand the Network adapters section Right-click your Ethernet adapter and select Properties Go to the Advanced tab Look for properties related to: Wake-on-LAN Network Boot PXE Support If these options exist, your network card supports PXE. Check via Terminal (Linux) Open a terminal window First, identify your network interface name:baship link show Then use ethtool to check for PXE support (replace eth0 with your interface name):bashsudo ethtool eth0 Look for the “Wake-on” line. If it shows g (Wake on MagicPacket) Or mentions PXE, your card supports network boot. Step-by-Step PXE Remote Maintenance Setup This guide uses the most popular and easiest tools for PXE server setup. We recommend Tiny PXE Server for Windows or dnsmasq for Linux, as they combine DHCP and TFTP in a single package. Step 1: Prepare the Server Environment Prerequisite: Your PXE server must have a static IP address. Dynamic IP addresses will break PXE functionality. Assign a static IP to your server (e.g., 192.168.1.100) Disable any other DHCP servers on the same network (conflicts will cause failures) Download and install your chosen PXE server software Configure the DHCP server with the critical options from the table above Step 2: Place Correct Boot Files & Maintenance Images Critical: Choose the correct boot file based on your client’s boot mode. Client Boot Mode Required Boot File Legacy BIOS (old computers) pxelinux.0 Modern UEFI (64-bit) bootx64.efi or ipxe.efi UEFI (32-bit, rare) bootia32.efi Place the appropriate boot file in the root directory of your TFTP server Download a maintenance system image (WinPE for Windows, Clonezilla for disk cloning, or a Linux rescue image) Extract the entire contents of the ISO image to a subdirectory in your TFTP root Update your PXE configuration file to point to the correct kernel and initrd files Step 3: Configure Client BIOS/UEFI Boot Priority Restart the target computer you want to maintain Press the BIOS/UEFI key during startup (F2, F10, F12, or Del) Navigate to Advanced > Network Stack Set PXE Boot or Network Boot to Enabled Go to the Boot menu Set Network Boot (LAN) as the First Boot Priority Save changes and exit BIOS/UEFI Step 4: Boot Into Maintenance System & Perform Operations The client computer will now automatically start the PXE boot process It will send a DHCP broadcast request Your PXE server will respond with an IP address, TFTP server address, and boot file name The client will download the boot file from the TFTP server The boot file will load the maintenance system kernel and environment Once booted, you can perform any maintenance tasks: Reinstall the operating system Clone or backup hard drives Repair corrupted system files Scan for viruses and malware Reset forgotten passwords What If Your Computer Doesn’t Support PXE? Many consumer laptops and some modern ultrabooks have PXE disabled by default or removed entirely. Here are the solutions: USB PXE Boot: Create a special USB drive

Can Mini PC Use External GPU? Announcements Buyer Guide Comprehensive Tips Occasion Product Review Q&A Tutorials If you own a Mini PC, you may often wonder: Can a Mini PC use an external GPU (eGPU)?The answer is yes.An external GPU is a game-changer for Mini PC users who need better graphics performance.Unlike internal GPU upgrades, eGPU is practical and flexible.It helps Mini PCs break through graphics limitations without changing the device itself. 1. Requirements for Using an External GPU with Mini PC Not all Mini PCs can connect to an external GPU.You need to meet specific requirements to ensure smooth operation.Here are the key conditions you must check first. Compatible Ports The most critical requirement is a compatible port on your Mini PC.Without the right port, an external GPU cannot work.The recommended ports are Thunderbolt 3, Thunderbolt 4, USB4, or OCuLink.These ports support PCIe tunneling, which is essential for eGPU connectivity.Note that a regular USB-C port is not enough.It does not support PCIe tunneling and cannot transmit the large amount of data required by an external GPU. Comparison of Different eGPU Ports Different eGPU ports vary in bandwidth, performance loss, and use cases.Understanding their differences helps you choose the right one for your Mini PC.Below is a clear comparison of the most common eGPU ports: Port Type Bandwidth Typical Performance Loss Hot Plug Support Compatibility Best For Thunderbolt 3 40Gbps 15-20% Yes Most modern Mini PCs and eGPU enclosures General use, casual gaming Thunderbolt 4 40Gbps 10-20% Yes Newer Intel-based Mini PCs Gaming, video editing, professional work USB4 20-40Gbps 15-25% Yes Budget-friendly modern Mini PCs Casual users, light productivity OCuLink (PCIe 4.0 x4) 64Gbps <5% No High-end performance-focused Mini PCs 3D rendering, AI training, competitive gaming BIOS/Firmware Compatibility Even if your Mini PC has a compatible port, you need to ensure its BIOS or firmware supports eGPU.First, update your Mini PC’s BIOS and system to the latest version.This avoids recognition issues between the Mini PC and the external GPU.For Intel-based Mini PCs, enable VT-d/IOMMU technology in the BIOS.This optimizes data transmission and ensures stable operation. Supporting Hardware You need three key hardware components to use an external GPU with your Mini PC.First, an eGPU enclosure.It has a PCIe slot, an independent power supply (300-700W), and a cooling system.Second, a desktop graphics card.Choose a model with power consumption ≤350W based on the enclosure’s power supply.Third, a high-quality connection cable.Use the cable that comes with the eGPU enclosure to ensure stable data transmission. System Requirements Windows 10 or 11 is the best choice for eGPU compatibility.Most eGPUs work seamlessly with these systems.Some Linux distributions support eGPUs, but they require additional configuration.It is not recommended for beginners. 2. Benefits of Using an External GPU with Mini PC Using an external GPU with your Mini PC brings many practical benefits.It solves the problem of poor graphics performance of Mini PCs.At the same time, it retains the advantages of Mini PCs, such as compact size and portability. Boost Graphics Performance Significantly Most Mini PCs rely on integrated graphics, which are only suitable for daily office work and video playback.With an external GPU, your Mini PC can handle 3D rendering, video editing, and even 1080p/1440p gaming.It meets the needs of professional users and gamers.From practical testing, OCuLink offers the lowest performance loss (less than 5%) for eGPU, while Thunderbolt 4 has a loss of 10-20%. Flexible Upgrade and Cost-Saving Unlike internal GPU upgrades, you don’t need to replace the entire Mini PC to upgrade the external GPU.When your graphics needs increase, you only need to replace the graphics card or eGPU enclosure.This saves money in the long run. Retain Mini PC’s Portability Mini PCs are loved for their compact size and light weight.An external GPU is a separate device.You can disconnect the eGPU when you need to carry the Mini PC.When you are at home or the office, connect it to get powerful graphics performance. Support Multi-Monitor Setup Most eGPU enclosures have multiple video output ports, such as HDMI and DisplayPort.This allows your Mini PC to connect multiple monitors at the same time.It improves work efficiency for office and design users. 3. Step-by-Step Guide to Set Up External GPU for Mini PC Setting up an external GPU for your Mini PC is not complicated.Follow these simple steps, and you can use it smoothly. Step 1: Check Compatibility Again Before starting, confirm your Mini PC has a Thunderbolt 3/4, USB4, or OCuLink port.Update the BIOS and system to the latest version.This avoids recognition failures. Step 2: Prepare All Hardware Gather your Mini PC, eGPU enclosure, desktop graphics card, connection cable, and monitor.Install the graphics card into the eGPU enclosure.Connect the enclosure’s power supply and ensure it is properly fixed. Step 3: Connect the Devices The connection process differs slightly depending on your port type.For Thunderbolt 3/4 and USB4: You can safely plug the cable into your Mini PC even if it is powered on.For OCuLink and M.2 solutions: Fully shut down your Mini PC first. OCuLink does not support hot plugging. Connecting while powered on may cause system crashes or hardware damage.Use the dedicated cable to connect the eGPU enclosure to the compatible port of your Mini PC.Connect your monitor to the video output port of the eGPU enclosure. Step 4: Power On and Install Drivers First, turn on the eGPU enclosure.Then turn on your Mini PC (if you are using OCuLink).The system will detect the new hardware immediately. No need to wait several minutes.Download and install the latest graphics card driver from the official website of NVIDIA or AMD.Restart your Mini PC after the driver installation is complete. Step 5: Set the Default GPU Right-click on the desktop and select “Display Settings” (Windows 10/11).Find “Graphics settings” and select the apps or games you want to run with the external GPU.Set the external GPU as the default graphics processor.Save the settings and restart the app. FAQ Q: Can I use an NVIDIA external GPU with an AMD Mini PC? A: Yes, you can. The compatibility depends