Computer Hardware
You get a CMOS checksum error during bootup. What is most likely the cause?

hard drive types are incorrectly defined
BIOS needs updating
CMOS battery is nearing end of life
power supply is bad

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Computer Hardware
When connecting a ribbon cable to a connector, how do you know which direction to plug it in?

It does not matter
The colored line in the cable goes to pin #1
The blue or red line in the cable goes away from the power connector
The red line in the cable goes to the highest pin number

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