单项选择题
A technician does not have power to a PC. Which of the following tools should the technician use to check for electricity?（）
A. Cable tester
B. Power supply tester
C. Tone generator
D. Multimeter
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单项选择题
Which of the following tools can be used to test if a 24-pin power cable is outputting correct voltage?（）
A. Cable tester
B. Wrist strap
C. Multimeter
D. Loopback plug -
单项选择题
A laptop LCD screen needs to be replaced. Which of the following tools would be BEST used toopen the case?（）
A. Flathead screwdriver
B. Plastic shim
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单项选择题
A new processor was recently installed on a one year old motherboard, replacing the original processor. The processor is on the motherboard’s supported processor list and was double checked for proper installation. However, the PC refuses to POST properly and displays no video onscreen. Which of the following is the MOST likely issue?（）
A. Too much thermal paste was used on the processor and it is preventing boot.
B. The motherboard needs to have its PWD jumper removed before the first boot.
C. The motherboard needs to have the most recent BIOS version installed.
D. The motherboard needs to have a newer CMOS chip installed.
