Your system will probably won't even start.
randomly shuts down.
May cause failure to your system.
No. It is bad to not have enough.
Pulling the plug isn't too bad... it's re-inserting it that could cause problems. It could cause a power surge.
Could be a bad cooling fan on your Processer or a bad power supply.
test it with a multimeter
Could Be a fuse on the Circuit Board or The Power Supply Capacitors are bad.
Bad PSU, (power supply). Did not install motherboard right in case, and bad ground.
Power supply or motherboard is bad.
Yes, if your fan stops working because your power supply went bad, the CPU could overheat very easily and shut down or even crash resulting in loss of data.
To efficiently determine if your power supply is bad, first check for visible signs of damage, such as burnt components or bulging capacitors. Next, use a multimeter to test the output voltages against the manufacturer's specifications; if they are significantly out of range, the power supply may be faulty. Additionally, try using a known good power supply to see if the system powers on correctly. If the system works with the alternative supply, it's likely that your original power supply is defective.
Possibly. If the computer is turning COMPLETELY OFF, as in fans and everything, then it is more likely either a failing Power Supply, a bad or loose power plug or cable, or a bad surge protector/strip. It can also be caused by a bad power switch, failing motherboard, or a major short (such as the videocard being seated poorly, or defective). It can also be caused by overloading the Power Supply (PSU). Try disconnecting devices and see if the problem persists. Very rarely is it the CPU, hard drive or other drives, network card, soundcard. If it happens while the computer is under load (such as playing a game) it increases the likelyhood the problem is power-related.
Your engine will not start or will stall from lack of a fuel supply from the fuel pump.
Nothing happens-becuase you can't. No kid has the power to trade your soul.