Is it normal for CPU12v power socket to have a resistance of 200 to ground?

Abnormal, low-voltage equipment and line insulation should not be less than a megaohm.

Hello, this is normal and can be used.

The resistance of the CPU power supply (core power supply) to ground is normally 100-300 ohms.

Knowledge Extension Detection CPU Power Supply:

The CPU circuit of the motherboard mainly provides the conditions for the CPU to work. It uses a switching power supply circuit, which is mainly composed of a power control chip and an inductance coil.

MOSFET and capacitor. A faulty CPU power supply circuit will cause the CPU to not work and the computer to fail. Its faults are mainly due to damage to the MOSFET and capacitors and power control chips.

When detecting, first detect the resistance value of the 12V power supply socket to the ground, which is normally 300-700 ohms. This normal resistance value indicates that the upper tube of the CPU power supply circuit.

Normal, otherwise it may be defeated by Sun Dan.

Then measure the CPU power supply voltage, the normal value is, this voltage is not normal, measure the resistance value of the CPU power supply circuit FET to the ground, the normal is 100-300 ohms, if the resistance is normal.

3) Then measure the output voltage of the CPU power supply circuit chip, generally, if it is abnormal, then measure the pole signal of the chip, the normal is 5V, and then test whether the power supply voltage is normal, generally 5 or 12V, if these two are normal, the chip is damaged. If the power supply voltage is normal after replacement, but the CPU still does not work late, it is i0 bad, replace.

It shouldn't matter, the operating voltage of the CPU itself is very low (for example, the current is very large (50 A to 100 A are common), use these two numbers to change the word to explain the CPU internal resistance (relatively large) = ohms, more than 100 times smaller than the parallel resistance in your circuit. So don't worry about a short circuit.

What is the resistance of the CPU power supply on the motherboard shed crack? --There is no such statement!

There is only a saying of "what is the CPU power supply voltage on the motherboard"!

Capacitor bursting on the motherboard is a common problem, so there's no need to make it so troublesome! In fact, you can replace those capacitors, note that as long as the position can be installed with a number and state, the withstand voltage of the capacitor is best a block higher!

It's not that it's endless.

When I measure it under this excuse, I take out the trace CPU, 47830 or more.

100 or more.

Pretty much the same.

If you have a CPU, the non-atrial rate is usually small.

There's no need to be so troublesome.

The capacitor is bulging. It is enough to use a substitute with the same or greater withstand voltage capacity.