Understanding the power sequence of laptop motherboards is very important. Firstly the power sequence is the exchange of voltages and signals between the motherboard chips. Secondly, This happens before anything appears on the screen. The power sequence is the phase in which the motherboard prepares itself to function. This phase consists of sending orders to … Read more
Step Down Section 3.3Volt & 5Volt Always Section is the second section in the laptop motherboard. This section receives adapter voltage and generates 3 volts to get power to SIO.Secondly, this section is also called as Always Voltage section. It has a Buck converter of 3.3volt and 5volt and two linear regulators called VREG3 and … Read more
Below are the steps to follow to repair the laptop battery charging section : Steps Firstly, Check AD_ID signal in HP or in Dell laptop Secondly, Replace the battery and recheck Thirdly, Check voltage at the positive terminal when the adapter is plug Fourthly, Check CHGEN signal or SM bus signals on battery charging chip … Read more
There can be a case when you encounter a problem like desktop motherboard power on but no display is coming. So below we are going to see step by step[solutions for the desktop motherboard power on problem which is the most occurring problem while repairing a desktop motherboard at the chip level. Step … Read more
Firstly, when we press the power button the SMPS and CPU fan spins and then stops repeatedly. This problem is due to an incomplete power rail. In the motherboard voltages turn on one after another is called a Sequence. If one of the voltages gives some problem then the cycle is not able to complete. … Read more
Firstly the use of PCI Express port is to diagnose desktop motherboards. Secondly, PCI ports come in 4 sizes 1x, 2x, 3x, and 4x. We are going to see PCI Port and Debug Card in detail Signal Names And Their Description For PCI Express Port The following is the signal’s name and description for … Read more
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