Computer keeps turning off randomly.

Quote:
How to measure: Set a multimeter to 20 VDC. Black probe attached to the chassis. Touch the red probe to the purple wire where is connects the PSU to the motherboard. Just push the probe into that nylon connector to read about 5 volts. Record that number to three digits.

Repeat for the green and gray wires. Also measure the 3.3, 5, and 12 volts by touching any one orange, red, and yellow wires. Report those three digit numbers to learn what really exists, to calibrate the meter that “Speedfan” reads,
What are numbers from each wire? What was 'Speedfan' reporting at that same time for each voltage?


Now i see the chassis, i can put the black probe there no problem, but i see no purple wires, nylon connectors, green or grey wires, i have red and yellow wires, on several parts of the pc, but only one orange ( over near the front where the wires go into the mobo for things like LEDs, i have no idea what im looking for, if you mean the cables coming from the psu such as the main rectangular one that clips in with lots of colourful wires, thats covered in black wrapping so i wouldn't know which ones to look for.
 
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