6 Essential Computer Hardware and Performance Tips You Should Know (Video in Khmer)

Hello friends! Today I share 6 essential computer hardware and performance tips you should know. Know your hardware help you fix problem, buy correct part, and make computer run better. All video is speak in Khmer, short and easy to follow step by step.

1. How to Check CPU, RAM and VGA on Computer

Want know your computer is strong or not? This video show how to see CPU, RAM and VGA (graphic card) in Windows, no need open the case.

2. Difference Between RAM and ROM

Many people confuse RAM and ROM. This video explain what is each one and how it different.

3. How to Check RAM Model DDR3 or DDR4 in Windows

Want buy more RAM? You must know your RAM is DDR3 or DDR4 first, because it not work together. This video show how to check.

4. How to Download and Install NVIDIA VGA Driver

Game lag or screen not clear? Maybe your VGA driver is old. This video show how to download and install NVIDIA driver correct way.

5. 5 Things You Must Know About Power Settings on Windows 10

Power Settings control battery and energy use. Set correct and your laptop battery last longer, or your PC run more fast.

6. 5 Points to Make Your Computer Run Better

Computer slow? Try these 5 point to make it run more better and smooth.

Quick Tips

Here is some extra tip to go with the video. Try it on your computer!

Check CPU, RAM and VGA

Settings > System > About — see CPU and RAM size.
Press Windows + R, type dxdiag and press Enter — see CPU, RAM and VGA (in Display tab).
Ctrl + Shift + Esc > Performance tab — see CPU, Memory, Disk and GPU live.

RAM vs ROM

Item	RAM	ROM
Full name	Random Access Memory	Read Only Memory
Data	Lose when turn off	Keep when turn off
Use for	Program that running now	Start computer (BIOS / firmware)
Speed	Very fast	More slow
Can change	Yes, can add or upgrade	Usually no

Note: on phone, people call storage "ROM" (like 128GB ROM), but true name is storage, not ROM.

Check RAM type

Ctrl + Shift + Esc > Performance > Memory — Windows 11 show DDR4 or DDR5 on top right. Also see Speed and Slots used.
Or download free CPU-Z > Memory tab show DDR3, DDR4 or DDR5.
DDR3, DDR4 and DDR5 cannot mix. Slot is different!

NVIDIA driver

Download only from nvidia.com/drivers or use NVIDIA App.
Choose correct model and Windows version.
Install choose Clean installation if you have problem with old driver.
Check driver: right click Start > Device Manager > Display adapters.

Power Settings

Press Windows + R, type powercfg.cpl to open Power Options.
Balanced — good for most people.
High performance — more fast, but use more power and make laptop hot.
Power saver — battery last longer, but more slow.
Check battery health: open Command Prompt, type powercfg /batteryreport and open the file it make.