#21. A Company.com technician has just upgraded the CPU on a Company.com computer. Now the computer shuts down automatically. What is the MOST probable cause of this problem?
#22. A Company.com technician has successfully upgraded the CPU on a Company.com computer but now the Company.com user reports that it is overheating. What is the MOST probable cause of this problem?
#23. A Company.com user reports that the screen on his computer remains blank when he switches the computer on. What should the technician check FIRST?