Why can t I boot up if I insert a 1G and a 512 memory?

It should be no problem.

You're using the same model and it's the same brand.

You plug in the 512 and 1G ones together, and there is a Didi sound when you turn it on.

If there is, it should not be plugged in properly, the memory module must be plugged in well, and the tea is not good.

Definitely can't turn on the machine, plug in two 1g, you may be plugged in when you plug in, but when you plug in 1g and 512, it may not be.

So. It is recommended that you double-check that it is plugged in.

Memory that is not of the same brand, model, and capacity may be incompatible and must be replaced.

And the two Kingston may have different memory particles in them, or one of them may be fake.

If it's incompatible, I have to change it.

The memory particles are different, and the computer cannot be turned on.

The same brand may also use the same kind of granules.

It is best to use the same brand and the same particle and the same size, 512m and 1g... It's not good, so it's good to replace it with 2 1g.

Not only different brands, but also some motherboards pick memory, and there are also problems with plugging in different sizes, so it is best to pair and plug in.

You can try to insert different memory slots, but if it doesn't work, you can only find the same size of memory.

Probably not a compatibility issue.

It is estimated that the memory slot is in poor contact.

You can take the machine to the place where you bought the memory and ask him to check it for you.

Something went wrong with the size.

The system doesn't recognize it.

The best mode of dual channel is 2 of the same large frequency and the same brand.

1. The boot line is abnormal: use an external power supply to supply power to the mobile phone, use the electric meter to detect whether the indication has changed, if there is no change, it is likely that the boot line is broken or the boot button is not in good contact.

2. The power supply circuit of the battery is abnormal: use the external interface to supply power to the mobile phone, see if it returns to normal when it is turned on, if it is normal, it is determined that the power supply circuit of the mobile phone is abnormal.

3. The IC of the mobile phone power supply is abnormal: test the test point of the peripheral circuit of the power supply IC according to the circuit schematic diagram to see whether the test value is normal.

4. The system clock and reset of the mobile phone are abnormal: you can use the dual total oscilloscope to detect the CPU power supply of the mobile phone to check whether the waveform in the reset is correct.

5. Problems with logic circuits: that is, faults in the circuit version of mobile phones, which can generally be solved by repair welding.

6. Software conflict: The installed software does not match the system of the mobile phone, which may also cause the mobile phone to fail to boot, you can connect the mobile phone to the computer to delete the program.

7. If it is a copycat mobile phone, then I estimate that it can't be turned on because the chip inside is burned, or some of the small parts inside are loose, but this situation will only appear if you drop it, the chip burns may be because you charge it for too long, burn the chip, if the battery has electricity, that is these aspects, if it is a brand-name mobile phone, such as Nokia, Motorola. These situations are rare, unless it is artificial, if it is a brand-name smartphone, and it is not used improperly, it is a software problem, it may be a system crash, or because of the mobile phone poisoning caused by software damage, generally this can only go to the maintenance office, however, I think the biggest possibility is caused by static electricity, it is recommended that you do not open the blind repair, or go to the maintenance office!

The machine is too old to be repaired.

What does it have to do with not being able to turn on?

It's so old that it's hard to run with an XP.