Toshiba satellite motherboard removal.
A motherboard is usually replaced for one of two reasons. You either replace a motherboard because it has gone bad, or you replace an older motherboard with a new or upgraded motherboard. In either case you will have to completely disassemble your laptop to even gain access to your motherboard. Fortunately, the Toshiba Satellite laptop can be completely disassembled even if you don't have a lot of technical knowledge.
Turn off the laptop, disconnect the power cable, remove the battery pack and disconnect any miscellaneous cables and peripheral devices. WARNING: Before you start troubleshooting remember that you are dealing with electricity that can KILL. http://www.kitchentablecomputers.com/static.php - rules
Only work inside the computer case when the power has been switched off and disconnected. Never open the power source. Some of the below steps recommend removing physical parts within the computer. While in the computer it is highly recommend that you be aware of ESD and its potential hazards Attach an antistatic wrist bracelet to prevent shock from static electricity. Static electricity can harm your computer's internal parts. Place the laptop face down, and remove the single Phillips-head screw attached to the hard drive cover. Remove the hard drive cover, then set it aside. Remove the single Phillips-head screw attached to the wireless card/memory cover. Remove the cover and set it aside. Slide the hard drive out of its compartment. This will disconnect the hard drive from the computer. Set the hard drive aside very carefully. Push on the ejector tabs on either side of each RAM module. Slide the RAM modules out of their compartments at a 45-degree angle. Remove them from the laptop and set them carefully aside. Disconnect the antenna cable from the wireless card, and then lift the wireless card out of the laptop. Remove the four retaining screws from the modem card. Lift the modem card slightly out of the laptop, and then disconnect the modem cable from the motherboard. Set the modem card aside. Remove the single Phillips-head screw securing the DVD/optical drive. Slide the DVD drive out of the laptop's frame and set it aside. Remove all marked screws from the bottom casing of the laptop, and then place the laptop face up. Open the laptop as far as it will go. Use a small flathead screwdriver to pry up the keyboard bezel. The keyboard bezel is a small plastic strip sitting between the keyboard and the LCD display. Remove the two Phillips-head screws securing the keyboard in place. Lift up on the keyboard and disconnect the keyboard's ribbon connector from the motherboard. Remove the keyboard from the laptop and set it aside very carefully. Close the laptop. Place the laptop vertically so the LCD display hinges are face up. Remove the two Phillips-head screws from the hinges. Set the laptop down and open the laptop as far as it will go. Remove the four Phillips-head screws securing the LCD display. Lift up on the LCD display, and then disconnect the video cable from the motherboard. Remove the LCD display from the laptop and set it aside carefully. Disconnect the DVD control board cable, the touchpad cables and speaker cables from the motherboard. Disengage the plastic latches on the rear of the laptop casing near the hinges, and then remove the top casing from the laptop's base and set it aside. Remove the two Phillips-head screws securing the CPU fan and heat sink in place. Disconnect the fan cable from the motherboard. Remove the fan and heat sink from the motherboard and set it aside. Remove the single Phillips-head screw securing the motherboard to the bottom laptop casing. Disconnect the USB port connector from the motherboard and remove the jack from its housing. Lift the motherboard from the bottom laptop casing and very carefully set it aside.
Hope this helps.