主板上只有2个内存条(主板只支持2个内存条)

The two slots are A1 and B1 channels, and you can directly create dual-channel memory. This situation is often to reduce the size of the motherboard, and is more common on ITX and M-ATX motherboards.

Be careful not to use two memory sticks of different capacities to create dual channels. During the process of reading and writing data, dual-channel memory will store data in channel A and channel B respectively. If the capacities of channel A and channel B are not equal, then the data writing of channel B will be completed, but channel A will have no space. Writing data causes creation to fail.

Extended information:

Advantages of dual-channel memory

The bandwidth of dual-channel memory can reach 128bit. Because the two memory controllers of the dual-channel system are independent and complementary intelligent memory controllers, they can operate simultaneously with zero waiting time for each other. This complementary "nature" of the two memory controllers can reduce effective waiting time by 50%, thus doubling the bandwidth of the memory.

Although this new specification is mainly a change on the chipset and motherboard side, the purpose of dual-channel is also to solve the problem of memory bandwidth, so that the motherboard can operate even if it only uses DDR400 memory. , it can also reach a bandwidth of 6.4GB/s. Dual-channel is a new technology used in motherboard chipsets (Athlon64 is integrated into the CPU). It has nothing to do with the memory itself. Any DDR memory can work on a motherboard that supports dual-channel technology.

Reference source: Zhongguancun Online - Novice Training Camp: Do you think you have set up a dual-channel memory?

Reference source: Zhongguancun Online - 99% of users don’t know how to set up dual-channel memory

The computer has two memory sticks. You can buy another one and plug it in, but you should pay attention to the same frequency, brand and model.

Computer motherboards have multiple memory locations. Generally, low-end motherboards only have two, and high-end motherboards have more than four, and they are all even numbers. The number of memory sticks on the computer motherboard is even. Part of the reason is that the effect of dual channels is greater than that of single channel. For example, the effect of two 8G memory sticks with a frequency of 3200 is greater than that of a 16g memory stick with a frequency of 3200. Therefore, when installing the computer Try to choose two to form a double channel. If you choose one, you can add another one later to form a double channel.

Theoretically, computer memory sticks can be plugged in at will, but the actual effect is not like this, because there will be compatibility issues, and compatibility is very mysterious, and it may be possible to plug in any two memory sticks The combination of memory sticks can work normally, but it is also possible that two memory sticks of the same brand cannot be used normally when combined together. If two memory sticks with different frequencies are combined, the frequency of the lowest one will be used. If two memory sticks with different capacities are combined, the system will automatically adjust to allow the combined memory to run. , even so, some computers will still have compatibility issues, so when installing current memory modules, try to choose the same frequency and the same capacity.

Different brands use different memory chips, which may also cause compatibility issues. Some brands have poor compatibility, even between the same brands. Compatibility issues may also arise. The memory stick has a very long service life. As expected, it can be scrapped along with all the accessories of the entire host. Sometimes there is no problem in choosing second-hand memory. The memory frequencies supported by the motherboard may also differ. Some old motherboards do not support higher-frequency memory, and low-frequency ones may no longer be produced. In this case, you need to purchase second-hand memory. Therefore, when choosing memory, you should also choose according to the motherboard. The quality of memory modules with the same frequency depends on timing and granularity. The lower the timing, the better the quality of the memory module. The stronger the granules, the better the quality of the memory module. Memory modules with good timing and granularity can be overclocked. The timing cannot be selected before purchase, but the granularity can be selected. That is to say, if you do not need to overclock, there is no need to choose good chips. Low-end memory modules with mixed chips can also be used.

If the computer cannot start normally after plugging in two pieces of memory, there are several possible reasons and solutions:

1. The memory is incompatible: check whether the memory is compatible with the motherboard Compatible and make sure the memory is the same model and frequency. If there is incompatibility, you can replace it with an adapted memory.

2. Slot problem: Check whether the memory slot is dusty or loose. You can use an eraser to wipe the memory gold finger and slot, and make sure the memory is plugged in tightly.

3. Faulty memory or slot: Try inserting each memory into each slot separately to determine whether it is the memory or the Slot problem. If a certain piece of memory fails to work in any slot, it may be that the memory itself is faulty or the slot is damaged, and the faulty part needs to be replaced.

4. BIOS settings: Enter the BIOS settings and check whether the memory is correctly recognized. If necessary, set memory parameters and timing manually.

5. Power supply problem: Check whether the power supply provides enough current to support two memory modules working at the same time. If the power supply is low, consider replacing it with a higher power supply.

If the problem persists, it is recommended to seek help from a professional computer repair technician.