How to turn on the desktop power supply
When assembling or repairing a desktop computer, turning on the power supply is a basic but critical step. This article will introduce in detail the starting method of desktop power supply, and provide practical operation guide based on the hot topics and hot content on the Internet in the past 10 days.
1. Basic steps for powering on a desktop computer
1.Check power connection: Make sure the power cord is properly connected to the electrical outlet and desktop power connector.
2.Connect the motherboard: Connect the 24-pin motherboard power plug and CPU power supply plug (usually 4-pin or 8-pin) to the corresponding interfaces on the motherboard.
3.Connect other devices: Connect the power cords of hard drives, graphics cards and other devices as needed.
4.Power on: Short-circuit the PS_ON (green wire) and COM (black wire) pins of the power supply, or start via the motherboard boot jumper.
2. Hot topics and content on the entire network in the past 10 days
The following are hot topics and data related to desktop power supplies and hardware across the Internet in the past 10 days:
| hot topics | heat index | Main discussion content |
|---|---|---|
| Power short circuit startup method | 85 | How to test whether a power supply is working properly by shorting the power pins |
| ATX power supply specification update | 78 | Discussion on new features and compatibility of ATX 3.0 power supply standard |
| Power supply selection | 92 | Is a high-power power supply necessary? How to choose a power supply based on configuration |
| Comparison between modular power supply and non-modular power supply | 65 | Analysis of the advantages, disadvantages and applicable scenarios of the two power supplies |
3. Frequently Asked Questions
1.What should I do if the fan does not spin after the power supply is short-circuited?
Possible causes include damaged power, incorrect wiring, or power supply issues. It is recommended to check the power connection or replace the power supply for testing.
2.How to judge whether the power supply is sufficient?
You can estimate the power consumption of the entire machine through the online power calculator, and ensure that there is a 20%-30% margin for the rated power of the power supply.
3.The motherboard does not respond after the power is turned on?
Check whether the motherboard power supply is plugged in tightly and whether the motherboard power-on jumper is connected correctly, or try changing the power supply to test.
4. Safety precautions
1. Be sure to disconnect the power supply before operation to avoid the risk of electric shock.
2. Do not touch other pins when short-circuiting the power supply to prevent short-circuit damage to the device.
3. It is recommended to use an anti-static bracelet to prevent static electricity from damaging the hardware.
5. Summary
Starting the desktop power supply is a basic skill for hardware operation. Mastering the correct method can avoid many problems. Through the steps and hot topic analysis in this article, I believe you can complete the power startup operation more safely and efficiently. If you encounter complex problems, it is recommended to consult a professional or refer to the manufacturer's guide.
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