Why does my laptop clock show 0?

That's the normal frequency.

If you really want to push the system to the limit, you can reduce the octave in order to increase the external frequency even higher. To understand this, imagine having a processor with a 200MHz frequency and 10 octave. Then 200MHz 10 = .

Obviously this equation works, but there are other ways to get it. You can increase the frequency multiplier to 20 and reduce the frequency to 100MHz, or you can increase the frequency to 250MHz and reduce the frequency octave to 8. Both combinations will offer the same.

So should both combinations provide the same system performance?

No. Because the external frequency is the channel that the system uses to communicate with the processor, it should be made as high as possible. So if you reduce the external frequency to 100MHz and increase the doubling to 20, you will still have the clock speed, but the rest of the system will communicate with the processor much slower than before, resulting in a loss of system performance.

Ideally, the octave should be lowered in order to increase the external frequency as high as possible. In principle, this sounds simple, but it gets complicated when it comes to the rest of the system, because the rest of the system is also determined by the external frequency, first and foremost the RAM. This is also something that will be discussed in the next section.

Because you may only understand the last of those three choices, explain them in the future:

External Frequency: RAM Ratio: If you want to increase the external frequency to a higher speed than the RAM supports, you can choose to let the RAM run at a lower speed than the external frequency.

This is done using the external frequency:RAM ratio. Basically, the external frequency:

The RAM ratio allows the selection of numbers to establish a ratio between the external frequency and the RAM speed. Let's say you're using a PC-3200 (DDR 400) RAM, which runs at 200MHz as mentioned earlier. But you want to increase the external frequency to 250MHz to overclock the CPU.

Obviously, the RAM will not support the increased speed of the external clock and will most likely cause a system crash. To solve this, you can set up a 5:4 external frequency:

RAM ratio. Basically, this ratio means that if the external frequency is running at 5MHz, then the RAM will only run at 4MHz.

To put it more simply, change the ratio of 5:4 to 100:80.

Then for the external frequency running at 100MHz, the RAM will only run at 80MHz. Basically, this means that the RAM will only run at 80% of the speed of the external frequency. Then as for the target external frequency of 250MHz, it runs at 5:

4 Outer Frequency:RAM ratio, RAM will run at 200MHz, which is 80% of 250MHz. This is perfect because the RAM is rated at 200MHz.

However, this solution is not ideal. Running the outband and RAM at a ratio results in a time difference between the outband and RAM communication. This causes a slowdown, which would not have occurred if the RAM and the external frequency were running at the same speed.

If you want to get the maximum speed of your system, using an external frequency:ram ratio is not the best solution.

After the laptop is connected to the AC power supply, the total remaining battery power is 0%, which is because the laptop battery does not contain power, and it will gradually increase until it is saturated after the AC power supply is flushed.

Laptop batteries are lithium-ion batteries composed of shells and cells. Generally speaking, the battery cell refers to the number of cells in the battery, and the mAh refers to the capacity of the laptop battery.

The standby time of a laptop battery is mainly determined by the mAh value. In general, the higher the number of cells, the greater the mAh value and the longer the standby time. The life of a notebook battery is mainly measured by the number of charging and discharging, and the quality of qualified products is generally 500-600 times.

Therefore, the effective life of laptop batteries is less than 2 years, and expired batteries will age, and the standby time will drop sharply, which will affect the mobility of laptops.

Can it be turned on without plugging in AC power?

In that case, it means that the battery itself can be used, considering that the computer judges the remaining capacity of the battery according to the voltage of the battery, so you can calibrate the battery first (refer to the manual for details) to see if there is any change. If you still can't improve the relevant drivers and operating systems of the motherboard, it should be a hardware problem with the battery voltage sensor on the motherboard.

The AC power symbol and the battery symbol frequently flash alternately, and the display screen also flashes brightly and darkly. ”

This means that the notebook is constantly switching between internal power supply and AC power supply, which should be a problem with the AC power supply module, probably due to poor contact.

Check whether the DC jack is loose and whether the power adapter cable is broken, which is a phenomenon of poor power contact.

This may be related to what you do and what you are doing. However, overclocking your computer is a way to get more performance from your computer, which may depend on what you're doing and what you're used to.

Overclocking of a computer is to increase the working frequency of CPU, graphics card, memory and other hardware through the overclocking method of computer operators (CPU overclocking, graphics card overclocking and memory overclocking), so that they can work stably at a frequency higher than their rated rate, so as to improve the working speed of the computer. The English name of overclocking is "over clock", which is a technical means to obtain performance beyond the rated frequency by adjusting the hardware settings to increase the main frequency of the chip. For example, some normal means to make the CPU work stably at a higher frequency, these means are mainly two points:

Enhance heat dissipation and increase operating voltage.

Overclocking can get higher performance on the computer, but it will eventually be overloaded, which will cause the computer to run more or less unstable, and the blue screen will freeze or freeze frequently. For the time being, a higher processing performance is needed, and we can temporarily overclock the hardware appropriately.

There are the following:

The power supply voltage is too high, resulting in overclocking.

If it is an Intel CPU, the CPU may automatically turn on the turbo frequency, if the memory and graphics card are overclocked, that is, the power supply voltage of the motherboard is too high (you can enter the BIOS to modify).

It is possible that the data cable is broken.

1. The display does not light up, and the motherboard screen is restarted repeatedly after booting, but the power supply problem is suspected, the replacement power supply is invalid, enter the BIOS settings, and find that the CPU frequency has dropped to, and after careful inspection, it is found that the CPU external frequency has been changed from 133MHz to 100MHz.

2 Turn on the computer host, check the memory, CPU, and graphics card in turn, all confirm that there is no problem, the data cable is well connected, and find that the inside of the host is very dirty, and suddenly guess whether it will be caused by too much dust, and immediately clean it with a hair dryer. The fault was solved immediately. After starting, the display drips and lights up and enters the system.

4 Check the power supply, CPU, memory plugging and unplugging, and graphics card plugging and unplugging all with an eraser.

5 Memory incompatibility, change memory problem solved.

That's right. I've encountered it before, it's OK to buy a thread online and change it

Cause: It may be caused by the launch of a program. Method: Run msconfig, 1) in "General" and 2) in "Startup", check them one by one to find the startup program that is most likely to cause the screen to flicker. Normal.

This is generally due to the fact that this is the case during the boot loading process of your graphics card, especially for newer NVIDIA graphics cards.

It's normal to be fine, that's the normal reaction of the monitor when it's powered on.

The external frequency display is only 266, yes, DDR2 is twice as much as DDR.

Software is generally only based on DDR or SDR writing, and you can calculate the multiples yourself.