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Preparation tools: a motherboard, a set of power chassis;
The computer power cord refers to the power supply to the motherboard and other configurations, and the host power cord refers to the power supply device connected to the chassis and the motherboard, and the main installation locations are different;
The main power cord is needed to connect to the chassis, and the first step needs to know the two parts, one is the wiring of the power switch (power SW), and the other is the wiring of the power indicator (power LED light);
9pin pins or other pins, the corresponding wiring will be identified on the PCB board, for example, "PW" stands for power boot"res"stands for reset restart, "hd.""It represents the hard disk light, "PWR LED" indicates the power light, and some motherboards are even distinguished by color;
After the corresponding connection, the hard disk light (LED) is divided into positive and negative poles, if it is reversed, it will not light up, I hear that the hard disk is already running, but the prompt light is not on, just connect the plug in reverse, power boot and reset restart are not divided into positive and negative poles, so don't worry.
The computer power supply and PC power supply all have these 9 colors of wires (at present, the mainstream power supply omits the white wire).
Yellow: +12v (Standard range: +.)
Blue: -12V (Standard Range:
Red: +5V (Standard Range: +.)
White: -5V (Standard Range:
Orange: + Standard Range: +
Green: P-ON (power switch).
Gray: Signal line.
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Generally, the position of the plug-in cable on the motherboard is marked.
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In general! Plugging in a computer cable is the easiest! As long as it's easy to access, you can't go wrong! In other words, it must be wrong not to be able to access!
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When connecting the power switch cable, first find the two-pin plug marked "Power SW" from the cable on the chassis panel, which is white and brown, and then plug it into the pin marked "PWR SW" or "PWR" on the motherboard.
2.Reset switch cable.
It is used to hot-start the computer. When connecting, first find the two-pin plug marked "Reset SW", which is white and blue, and then plug it into the pin marked "Reset SW" or "RST" on the motherboard.
3.Power indicator cable.
First, find the three-pin plug labeled "Power LED", the middle wire is empty and the two ends are white and green, and then insert it into the pin marked "PWR LED" or "P LED" on the motherboard.
4.Hard disk indicator cable.
First, find the two-pronged plug marked "white and red", and plug it into the pins marked "HDD LED" or "IED LED" on the motherboard. Pay attention to directionality when inserting. Generally, the motherboard will be marked with "HDD LED+" and "HDD LED-", and the red end will be connected to the HDD LED+ pin, and the white will be plugged into the "HDD LED-" pin.
5.Speaker cables.
First, find the four-pin plug of "Speaker", the two wires in the middle are empty, and the two ends are red and black, and insert it into the pins marked "Speaker" or "SPK" on the motherboard. Red is inserted into the positive pole and black is inserted into the negative pole. But it turns out that these two lines are also indistinguishable between positive and negative.
Hope it helps.
Ask me a question, and that's mainly one question.
Or what's inside the case.
Question: I just took the chassis apart and ran it again.
You need to reinstall the system.
Question: So I'm a hardware problem in the case?
That's it, you need to reinstall the system.
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There are hints on the motherboard, you can find them yourself.
What 16 holes, preferably on **.
Generally, the underside of the needle is marked.
1.Power switch cable. >>>More
So as long as you plug in a power on the wire, you can turn it on, what other LEDs, RE, these can also be turned on without plugging, power is not divided into positive and negative levels, the non-stop ring you said above is not the reason why you are wrong, it is a problem with your memory, or there is a problem with your graphics card, it is recommended to take it out and use an eraser to wipe the gold finger,,, if it doesn't work, it is broken,,, and there will be this sound when the motherboard is broken, in short, it is not a problem with your wiring,, So the line is divided into positive and negative levels of power LED and HD LED, but it will be fine if it is plugged in the opposite direction, but the case light is not lit.
The noise is too loud, and there are two major places.
A case power supply fan, you can change to a 12cm large-diameter fan, which can also be said to be a silent version. >>>More
There are several prerequisites for singing karaoke on a computer: in terms of hardware, there must be a microphone, a set of speakers and a sound card, and the sound card generally does not need to be purchased separately, and is generally integrated on the motherboard. In terms of software, you can use the ** device that comes with Windows or the current popular software (such as Haojie, Oriental Movie Metropolis, etc.), and the operation steps are as follows: >>>More