BIOS Pins Descriptions Below is the description for BIOS pins: Symbol Description CS# Chip select. SI/SIO0 Serial Data Input (for 1 * I/)) / Serial Data Input and Output (for Dual Output mode). S0/SIO1 Serial Data Output (for 1 * … Continued
Firstly, before going to see SIO pins and their functions we will know what exactly is SIO. We will see it in this laptop motherboard repair guide. SIO stands for Super Input Output Controller. SIO is sometimes called KBC … Continued
There are various types of DDR RAM available. The main difference is power and the second is speed. Each DDR RAM requires three levels of voltage VDD for RAM chips, VTT called reference voltage is always half to VDD voltage … Continued
When we connect the adapter to the laptop motherboard current flow via two MOSFET and current sensing resister from the battery charging section and is then given to a different buck converter. Sometimes any ceramic capacitor, MOSFET, or chip … Continued
In the below , we are going to see in detail 3v 5v ALW and LDO Section Typical 3v 5v Always Voltage Section This is the second section in the laptop motherboard called 3 volts and 5 volt section. This … Continued
For doing repair the laptop VRM section we firstly must know that the laptop CPU VRM section generates CPU core voltage to the CPU. When all rest of the other power is ok then only CPU CORE voltage is generated. … Continued