Take Power sources out of lap tap, then drain power before upgrading memory. Make sure you put it in a bag. then slide in the new memory by only touching the corners. There are little clasps that click it into place. There are many ways to test memory. POST is one. This will detect new memory. Memtest86 is one type of test.You can also get one from Microsoft(website). This was very interesting to look at. If we want to upgrade a compuer with memory: we can see if there is something special on the memory we need. Some websites will do this for us. Mrs. Happy showed us a website called crucial.com This let one know how much memory they needed. She also showed a table of different Memory Types. Ex: RAM, CMOS, ROM, PROM, EPROM, EEPROM, and FLASH. ECC corrects problems.
Then we looked at Task Manager. Then we could check what we wanted to see. This is a useful utility, that people don't realize. Memory Symptoms: you can have an error message. The computer can also randomly crash.
Then she got into Buses inside the CPU. There are 4 types.
1. Address Bus.
2. Data Bus
3. Expansion Bus
4. Video Bus
Stopping Point: 1.8 IRQs
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