Overclocking can only change the external frequency and multiplier of the CPU, and can the front sid

First, the subject is different.

1. External frequency: the working frequency of the system bus (system clock frequency) and the frequency of data transmission between the CPU and peripheral devices.

2. Super frequency doubling: the output signal frequency generated is an integer multiple of the input signal frequency.

Second, the characteristics are different.

1. External frequency: By increasing the external frequency or frequency doubling coefficient, the microprocessor can be made to work at a higher clock frequency than the nominal main frequency.

2. Super frequency multiplier: It is to make the system bus work at a relatively low frequency, and the CPU speed can be improved by frequency doubling.

Third, the role is different.

2. Super frequency doubling: Fourier series is adopted. Each periodic signal can be defined as the sum of a fundamental frequency and its harmonic parts.

The main frequency of the CPU = the outer frequency x the frequency double, whether it is super external frequency or frequency doubling, the CPU frequency can be increased. However, they also have differences:

CPU external frequency, is the working frequency of the system bus, is the frequency of CPU and peripheral equipment to transmit data, if the CPU external frequency is improved, then the interface frequency of memory, hard disk and other equipment will be improved, these devices are likely to be unable to work normally at such a high frequency, so the current CPU is locked in the external frequency, can no longer be exceeded.

CPU frequency doubling refers to the CPU working at a frequency several times that of the external frequency, the smallest unit is, currently overclocking can only be achieved by adjusting the frequency multiplier.

1.Not all CPUs can directly increase the frequency multiplier, and most U are locked multipliers.

2.It seems that after overclocking, at the same frequency, the actual performance of the super-frequency is higher than that of the super-doubler, and I don't know the specific reason, you can check it online!

Except for the CPU of the black box, everything else is locked to the external frequency, which can only be over-doubled, and then manually reduce the frequency of the North Bridge.

And the performance of the super external frequency has been improved even more significantly.

Because the frequency is not all tuned... And some people just want to make the memory higher---

1. Is there any proportional relationship between the external frequency of the CPU and the front-side bus?

Take Intel as an example, the external frequency before P4 has a front-side bus, and the external frequency X4 has a front-side bus for P4 and later.

2. E5300 external frequency 200MHz front-end bus frequency 800MHz, such a CPU with DDR3 1333 memory, will the memory be downclocked to 800MHz to run?

The memory working frequency is set in COMS, and it is not necessarily downclocked.

3. If the E5300 is overclocked, can the FSB frequency be increased, and if so, how to calculate the ratio?

Yes, it's still an external frequency x4 front-side bus.

4. Now out of i7 other Intel's U front-end bus is up to 1333, does it mean that DDR3 1600 memory is not supported?

The motherboard supports memory, and the specific frequency of work is set in COMS.

5. What is the algorithm of the CPU with integrated memory controller?

In the case of AMD, for example, it uses the HT bus instead of the concept of a "front-side bus".

Intel's i7 series uses a QPI bus.

6. For example, the Athlon2 240 has an integrated memory controller and supports DDR3 Is it possible to use DDR3 at all frequencies without frequency reduction?

The motherboard supports memory, and the specific frequency of work is set in COMS. It doesn't matter if you reduce the frequency.

7. The front-end bus of i7 shows 1366MHz, what does this mean?

You are looking at CPU-Z, you are wrong, it should be said that "the bus speed is note: not the front-end bus"), that is, the external frequency is, that is, the external frequency is 133 (a little error, it is, you read the decimal point wrong).

The i7 series uses the QPI bus, taking the i7 920 as an example, the QPI link speed is 2400MHz, and the algorithm is the external frequency*18

Actually, the landlord, what you said"Front-end: Memory"It can be understood as:"CPU External Frequency: Memory external frequency"

The first point: the normal frequency of DDR3 1333 is 667MHz, because 1333 is the effective frequency of the memory, and 667MHz is the external frequency of the memory (the frequency recognized by the computer). For current memory, external frequency * 2 = effective frequency.

The second point: the CPU external frequency exceeds 230, and the memory works at 613"Front-end: Memory"for 3:

8。When not overclocked, the CPU external frequency is 200 and the memory is 669"Front-end: Memory"for 3:

10。After overclocking,"Front-end: Memory"This is to keep the external frequency of the memory at a certain value when the CPU external frequency increases, so that the memory will not become a bottleneck after overclocking.

By enlargement"Front-end: Memory"to overclock, so there is nothing wrong with overclocking.

The external frequency of the CPU is easy to understand, and it can be set in the BIOS.

The external frequency of the memory is not calculated. Instead, it is set according to the motherboard BIOS, or the motherboard is automatically selected"Front-end: Memory"It's decided.

If you don't understand, you can send me a message.

The external frequency is also called the CPU external frequency or fundamental frequency, which is a unit of measurement.

is "mhz".

CPU frequency.

Since the working frequency of the memory and L2Cache set on the motherboard is synchronized with the CPU frequency, the overall performance of the CPU with a high frequency is higher than that of the CPU with the same frequency but one level lower than that of the CPU. This parameter relationship is used in the selection of the motherboard.

Frequency multiplication. The coefficient is the proportional relationship between the CPU frequency and the external frequency, which is generally as follows: main sock frequency = external frequency * frequency doubling. Intel.

Multiplier for all CPUs (with the exception of a few tested products).

Usually it is locked (locked), and users cannot adjust the CPU clock speed by adjusting the frequency multiplier, but they can still set a different clock speed by adjusting the external frequency. AMD and other companies' CPUs are unlocked.

The best solution for netizens.

Right-click on the "My Computer" icon on the desktop, select "Properties", and you're ready to go!

The easiest way to do this is to boot up the Pasue

At this time, since it is a system boot self-test, you can see the CPU frequency in the BIOS!

Use. Crystalcpuid software looks. This is a processor information detection overclocking tool.

It is basically the same as the wcpuid, but the crystalcpuid supports a wider range of processors. CrystalCpuid supports almost all types of processor detection, and the most special thing is that Crystalcpuid has complete processor and system information.

The main frequency is the frequency of the motherboard itself

The outer frequency is the frequency of other hardware, and each hardware needs to return to the frequency for work, and there is no internal frequency, and there are frequency reductions and frequency doubling, and the over-the-world overshadowing frequency.

Frequency doubling is to give the value of the frequency of the motherboard several times to the hardware, and frequency reduction is to reduce the frequency to other hardware

Overclocking can increase the speed of the hardware, but overhiring too large a mold rock can damage the hardware.

Which one has the biggest impact on CPU performance?

Nonsense,Of course, it's the external frequency,Connected to a lot of hardware,Increasing the external frequency can improve the overall performance,Although the super-frequency can easily achieve a high frequency,But it has been confirmed that the high frequency of the Ming Tsai mode is not necessarily high performance,Therefore, the promotion of the external frequency has achieved a decisive advantage,The super-external frequency has been greatly improved。

Which has the most effect on CPU heating?

External frequency. My CPU fan sometimes beeps when I refuel, and when the speed is speeding up)

If the heat dissipation of the processor itself is not very good, and you can change the graphics card, then you can only change a hot fan, which is not very expensive, at most dozens of dollars.

Which of these can quickly reduce the heat generation of the CPU by reducing the external frequency of the CPU (now it is 166 over 200), reducing the frequency doubling, and reducing the voltage of the CPU?

You 166 over 200

The CPU is overclocked violently.,If you drop the retarding voltage, it will definitely be a blue screen.,If you don't even know this.,I don't know how you overclocked.,As mentioned above,The external frequency affects the bandwidth of the CPU.。

So it's better to reduce the frequency doubling.