Today I encountered a Lenovo computer from 2009 that only makes the sound of the CPU fan running at high speed on boot, but the monitor has no signal, and the mouse and keyboard lights are not on. Repeatedly switching it on and off has no effect. First, determine if there is a POST (Power-On … Read more
The motherboard is one of the most fundamental components of a computer, and it features a variety of interfaces. Today, I will introduce the functions of each interface for those who are not very familiar with this aspect. First, let’s look at the side interfaces, as shown in the image: Front interface diagram of the … Read more
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1. Reason Analysis: 1. The data cable connecting the monitor and the host may be loose or broken, leading to poor contact, or the monitor may be broken. 2. The metal strip of the graphics card inserted into the motherboard slot may have fallen off, rusted, or broken. 3. The metal strip of the memory … Read more
The methods described in this article draw from the experiences of predecessors and the practical operations summarized by Lao Mo. This document is organized to serve as a reminder, as they say, “Previous events can serve as a teacher for future ones.” This article only represents Lao Mo’s personal views, serving as a record for … Read more
The computer has been idle for a few days, or it was working fine before I left work yesterday, but today it won’t start. Symptoms – the fan turns on briefly and then stops, repeating this cycle. Alternatively, the computer might start but the screen remains blank. This issue is something I hear from customers … Read more
Seeing others’ desktops being so personalized, don’t you want to have your own personalized desktop? Today, I will teach you how to create a desktop that belongs to you~ Isn’t my desktop very personalized? Next, I will teach you how to create your own personalized desktop 1 1 1 Check the resolution of your computer … Read more
After spending a lot of time in the PC community, I realized that I have become detached from reality. When talking about computers, I always think of high-end models like the Core i9 and 4090. In fact, most people in their daily lives do not need such top-tier computers; a mid-range machine is sufficient for … Read more
The CPU fan and power supply fan only spin briefly and then stop, indicating a problem with the power supply to the CPU, leading to CPU failure. Below are steps to troubleshoot the issue. 1. There may be a problem with the power supply or the motherboard BIOS settings. First, remove the motherboard battery, … Read more
The methods described in this article draw on the experiences of predecessors and summarize the practical operations of Lao Mo. This is organized into writing to serve as a reminder that past experiences can guide future actions. This article represents only Lao Mo’s personal views, recorded for the purpose of reviewing and learning anew. 1 … Read more