Dual channel DDR 800 4G Current memory frequency Why is it 600 5

AMD's memory controller is integrated into the CPU, and the memory reads and writes do not go through the front-side bus, and the memory running frequency has nothing to do with the front-side bus, but maintains a certain proportional relationship with the CPU's main frequency. In fact, the AMD platform cannot directly specify the memory running frequency, only the memory model can be specified in the BIOS, and AMD's memory controller will automatically determine the actual running frequency of the memory based on the data you specify and the CPU frequency. In this way, it can be synchronized with the external frequency of the CPU as much as possible under the condition that the memory constitution allows, and improve the performance.

With cpu-z you will see cpu 5, cpu 6, etc. Here 5 and 6 refer to the crossover coefficient, which is a positive integer, which is calculated as the outer frequency x octave memory standard clock frequency, and the resulting value is rounded up as an integer.

AMD 5200+, 200 external frequency, multiplier.

For example, if your BIOS settings the memory to DDR2 800, then 200 800) and the whole number is 7. Then, the actual operating frequency of the memory is 200 octave, which is equivalent to DDR2 772

If your BIOS sets the memory to DDR2 667, then 200 667) and the whole number is 9. Then, the actual working frequency of the memory is 200 times the frequency, which is equivalent to DDR2 600

If you don't turn off C&Q, the AMD platform will automatically reduce the frequency doubling when the system load is lighter to reduce power consumption and heat generation.

5200+ main frequency 2700MHz, without overclocking, high-load operation, memory frequency is 667MHz. Yours is now 600, which is completely normal.

The front-side bus is not equal to the memory frequency, and the former should be higher.

Everyone is like this, normally, the running frequency of 1600 memory is 800MHz, because reading and writing are done at the same time, so the speed is = 800 times 2 = 1600MHz, which can be clearly seen in the processor is 1600MHz.

It is normal for the frequency of electronic components to have a small deviation, this deviation value has a certain relationship with the motherboard, this deviation is completely within the normal range, the motherboard and the system have turned on the power-saving mode, which can automatically reduce the frequency doubling, that is, it is free to switch between 16-33 octave, it is also normal, and the system will automatically adjust according to the CPU occupancy.

The actual frequency of the memory module DDR400 and DDR2 800 DDR31600 is actually 400MHz

It's just that the number of times the signal is transmitted in a clock cycle is different, DDR400 transmits once in a clock cycle, and DDR2800 transmits 2 times in a cycle, so the DDR800 transmission speed is 2 times that of DDR400 of the same frequency, so it is called DDR2 800, and the actual operating frequency of DDR3 1600 is also 400However, it is called DDR31600 when it transmits 4 times the data of DDR400 in one clock cycle, which is just a name relative to DDR400!

The speed of operation can only be up to 800, the highest frequency at which the motherboard and CPU memory run, only, the lowest of the three.

This means that the motherboard memory slot supports DDR3 specifications of 1066 or 800MHz memory, and can be dual-channel.

Dual-channel is a memory control and management technology. Two memory models with the same frequency, and brand make it easy to build a dual channel. This doubles the bandwidth of the memory and doubles the speed of data access (theoretically).

DDR3 is a computer memory specification. It is a memory product belonging to the SDRAM family, which offers higher performance and lower voltage than DDR2 SDRAM, and is the successor to DDR2 SDRAM (Quadruple Data Rate Synchronous Dynamic Random Access Memory) (increased to 8 times), and is also a popular memory product today.

Like the CPU frequency, the memory frequency is customarily used to indicate the speed of the memory, which represents the highest operating frequency that the memory can achieve. The memory clock speed is measured in MHz (megahertz). The higher the main frequency of the memory, the faster the memory can achieve.

The main frequency of the memory determines the maximum frequency at which the memory can work properly.

You can use 1333 frequency memory, but it's 1066 memory, and the motherboard supports up to 1066. . . And also! Are you mistaken?,The original sentence is not "Support dual-channel DDR2 1066 800MHz memory...

In that case, DDR3 1333 memory is not supported. Your motherboard is offbeat enough!

Around 333. I tested 800, boot display memory 1600MHz

What kind of CPU are you?,800 front-side bus.。。。

Your motherboard supports 1066 and 800 RAM, and the 1333 on it is also downclocked to 1066, which is not unstable.

This is the memory frequency, and it is best to follow the product description.

DDR2 refers to the second generation of DDR memory, and 800MHz refers to the memory equivalent frequency.

At present, the mainstream memory is the third generation DDR, that is, DDR3, with a mainstream frequency of 1333MHz or 1600MHz.

Generally speaking, the mainstream frequency of the first generation of DDR memory is 266-400MHz, and the second generation of DDR memory is 533-800MHz

The third generation DDR memory is 1333-1600MHz The three generations of memory are not compatible with each other, if your motherboard supports DDR2, then you can't use DDR3 memory, if you want to use the new memory, you have to change the motherboard, which is why the configuration upgrade is too old is equal to changing the full set.

DDR2 refers to the second generation of memory technology, and dual-channel generally requires 2 memory sticks to achieve. 800 refers to the operating frequency of the memory, and the unit is expressed in MHz. The average second-generation memory frequency is 533,667,800

Yours is the 800 with the highest frequency

DDR2 800 is a memory model, DDR2 generation, with a frequency of 800MHz.

He supports dual-channel memory up to DDR2 800

Simply put, it's dual-channel memory, 800MB S bus.

Two DDR2 800 memory can be plugged in

What CPU you can use depends on what your motherboard supports, and then whether you can play the performance of CPU and memory.

JS play concept? It's really not authentic, remember that 1333 is better than 800, and in the same way, 800 is 400, and the four-headed carriage can't catch up. Because technological progress is not a step backwards, of course the platform is another matter.

That's a theoretical value, but in practice, it still depends on the speed of its own CPU, just like a race car, even if it's not on the track.

It is also stronger than the average car on the general road, and the memory bandwidth is about the same as the road, as long as it is not too bad, it does not have a great impact.

How to put it, at the moment, the bandwidth of the memory of the new machines in the mid-range will always be the lowest.

DDR800's dual-channel loan seems to be only a CPU of at least more than 20G

Look at it with software such as cpuz, this is normal. These foreign software are displayed clock frequency, and DDR is a bidirectional data transmission mode, so it is twice the clock frequency, which is the last equivalent frequency. Specifically, 400 is the clock frequency, 400x2=800 is the equivalent frequency, and 800 is the frequency that ultimately reflects the performance.

To show you my 1600 memory (ADATA DDR3 1600), the translation is incomplete, the memory clock frequency is 798 800, and the equivalent frequency is 1600

Focus on the caption near this picture

The frequency of the dual channel is backward compatible, that is, the frequency of the two memories is not the same, and the memory with a higher frequency will automatically become the frequency of the memory with a lower frequency to work