DDR333 256M memory and DDR400 512M memory compatibility issues

When I saw "Ramaxel DDR 256M (RME510H28C5T-333)", the first thing I thought of was whether the landlord's machine was a brand machine of Lenovo, and my Lenovo was this kind of memory (Ramaxel), Infineon's particles.

Now I have added a "Kingston DDR400 512MB" memory and it works fine.

In the motherboard BIOS, set the running frequency of the memory to 166MHz (the actual operating frequency of DDR333), and the DDR400 (running frequency of 200MHz) will be declocked, that is, the memory module of DDR400 will be automatically downclocked to the same frequency as DDR333, but due to the compatibility problems of different brands and frequencies of memory, it may make one of the memories unable to be used normally.

If you don't set the running frequency, unplug the DDR400, boot into the BIOS, set the running frequency of the memory module to 166MHz, then shut it down, plug in one of the DDR400, and it should be ready to use when booted. If that doesn't work, it's time to consider compatibility.

Don't know how big your CPU is? Don't know if your graphics card is integrated? If the motherboard compatibility is good, 333 and 400 memory can coexist, try 400 alone.

In fact, the so-called backward compatibility is not true for all memory, if your motherboard already has a 333 memory before, you should also use 333 for the addition. Now there are still some carefully searched on the market, such as modern ones.

How to be compatible with different memory frequencies? Hehe, the memory frequency is different, why can't it be compatible?

You first take off the original memory and try to boot it to see if there is a problem with the new memory compatibility, if it is normal, then maybe there is a problem with your BIOS settings, because the original is 333, now it is 400, in this case, only all your memory working frequency can only be at 333, and the memory of 512 can not work under 400. Otherwise, something will go wrong.

333 and 400 memory can coexist.

But some of the memory brands are not compatible.

Remember, the memory must be of the same brand and model, otherwise it will not be compatible with 256 sold to 2 hands in the market, 512 memory is enough.

Ramaxel is not very good, and Lenovo's brand machines were used more in the past.

It is recommended that you try to change this memory to a different slot.

As for the memory frequency, the upstairs are misleading, as long as the BIOS does not enforce the memory frequency, the system will run at the lowest frequency of all the memory automatically detected, and the high frequency memory will not have a problem running at the low frequency.

How to be compatible with different memory frequencies?

Xinlu Master software is sufficient.

Or your laptop motherboard supports a maximum memory frequency of 2400MHz

Second, the motherboard and CPU may actively reduce the working frequency of the memory module from 2666 to 2400 for the sake of stability, which is also possible.

Third, the software that verifies the current actual frequency parameters of the memory module recommends using CPU-Z, as shown in the following figure (where the "memory frequency" multiplied by 2 is the actual "equivalent frequency", which is what we often call the "memory frequency").

Your current one is DDR3 1066 (actual frequency 533MHz, equivalent frequency 1066MHz).

Can be upgraded to 4G or 8G DDR3 1600. But it is recommended that the original one should not be used. If the DDR3 1600 is mixed with the original one, the memory controller will downgrade it to DDR3 1066 to maintain stability.

Also, is it necessary to upgrade to DDR3 1600? It depends on whether the memory controller supports DDR3 1600. For example, the memory controller of the i3 processor only supports DDR3 1333 at most, and the DDR3 1600 is replaced, which is equivalent to DDR3 1333.

Increasing the memory capacity has a more obvious effect than increasing the frequency. Now it's 1G, change to 4G, especially change the operating system to 64-bit Win7, the effect will be better. (Because a 64-bit system can fully call 4G and more memory, while a 32-bit system, including 32-bit Win7 and XP, can only call memory at most, and the rest is nearly 800MB wasted).

Secondly, the performance of dual memory is better than that of a single memory, for example, two 2G DDR3 1066 is stronger than a single 4G DDR3 1333, because two can automatically turn on dual channels, and the performance of some programs can be increased by 10%.

In terms of cost performance, it is recommended that you buy two 4G DDR3 1333, and then replace the system with 64-bit Win7, there is a significant improvement!

Finally, how to look at the frequency of memory.

Both DDR2 and 3 memory have two frequencies: one is the "equivalent frequency", which is DDR3 1066, DDR3 1333, DDR3 1600, DDR3 1866, etc. This means that it is equivalent to the actual operating frequency of DDR generation memory: 1066 MHz, 1333 MHz MHz, and 1866 MHz.

One is the "Actual Operating Frequency", which is used at an equivalent frequency of 2. Then the actual frequency of DDR3 1066 is 533MHz, that of DDR3 1600 is 800MHz, and that of DDR3 2133 is 1066MHz.

Because DDR2 and 3, compared with the first generation of DDR memory, data is transmitted in both directions at the same time, that is, the performance X2, so there is a "equivalent frequency" standard.

The DDR3 rate is calculated by requiring x2

You should be 1066 now

The capacity and frequency can be upgraded, but it depends on whether the chipset and CPU support it.

I didn't understand the details of the previous picture.,Your situation is that even if you change the high memory, it's 533.,It's all backward compatible.,And if your memory is 533, it looks like a machine a few years ago, and now it's all three generations of memory.,The slots are different.,Maybe I don't understand.。

A 4G change would be enough.

Kingston memory is not recommended.

Can you tell us about the overall configuration of your computer?

If it's not necessary, don't change the memory

There is no compatibility problem, and it can also form dual channels, but the 1600 will be downclocked, and the specific reduction to 1066 or 1333 depends on your CPU.

Installing memory at different frequencies together will not hurt the motherboard.

...1333 1600 mixed words.

1600 will drop to 1333 for use without damaging the motherboard.

The difference between 1333 and 1600 is that the speed is different, but the difference is not large, and it can generally be mixed.

1. The memory strip is divided into different frequencies, and the fundamental difference lies in the different performance and the different working frequencies. However, when the gap is not large, it can often be universal.

2. In the DDR3 era, when memory of different frequencies is mixed, the motherboard will automatically reduce the frequency. When 1333 and 1600 are used together, they will automatically drop to 1333. Therefore, it is common in most cases.

3. Note that if you plan to buy memory expansion, try to buy double-sided 16 particles. The compatibility of double-sided memory is better.

It can be mixed and won't damage the motherboard.

Compatibility to test yourself, if you can turn on the phone is no problem, if you can't turn on the phone is a compatibility problem.

Memory mixing, which runs at the lowest memory frequency. Your 1600 will run at frequency 1333.

Plug it in to redo the system. After it is done, it is looking at the situation. It doesn't make sense to suggest that the notebook doesn't need to make the memory too high. My notebook is still 2 and 4G, and finally I took one off and sent it to a friend.

I only support 2 2G memory sticks in parallel or directly use an 8G memory stick.

Two 2g ones are faster than one 4g one, and the burden is smaller than that of two 4g sticks.

In addition, many systems, such as XP, have too much memory for him to recognize and waste.

You plug it in. Then your frequency of 1600 will drop to 1333

2 RAM, which will run at the lowest frequency of memory.

And you have two different kinds of memory brands and different frequencies. There may be compatibility issues.

Now, though, memory compatibility issues are rare. It depends on whether you are so moldy.

If you use both of them, it's no problem. On the contrary, it can also improve the performance of your computer.

1--- It is recommended to directly change to 4g, and the original 2g can be discounted by the booth.

2--- If you want to add 2G, it is best to have the same brand and specifications, and it is best to go to the booth to do it, you can call them to match your original memory.

3. When replacing ---, the power should be cut off hard, that is, the battery should be removed.

4--- When replacing the memory, be careful not to use too much force to buckle the locking clip, which will cause damage to the clip (plastic clip).

5--- Take the memory and avoid touching the gold finger.

6--- After removing the original memory, do not install the new one immediately, you should use an air blower first, blow the card slot, and clean up the dust.

7--- Pay attention to the direction when installing, after inserting, press down, hear the "click" sound is locked, do not press down hard.

Just add a 4G directly,It doesn't matter if it's dual channel,Large memory is obviously better than what dual channel,6G can be used until you change the computer next time,It's best to remove the laptop battery and replace it when you change it,Nothing else。

This is not good,Let's take a look at your computer firstWhether it's a 32-bit or 64-bit system.,If it's 32-bit,You don't need to add it.,It's not too useful.,64-bit is best to add 2G memory sticks.,It's not much use if there's more home.,The system bottleneck is not in the memory.。。。 It's enough to add a 2g... It's best to draw the same as the original.,But it's not the same.。。。

I just added the memory module myself.

It is better to add the same to avoid unnecessary trouble.

Or add the same 2G-DDR3-1333 You can open dual channels Note that it is memory compatibility Don't buy parallel goods and fakes 4G-DDR3-1333 is best to be 2 with 1 The same brand Batch of memory Performance can be brought into play If the system is 4G memory, install 64-bit win7 It is not too good to play games and can install win8 64-bit.

DDR4 memory working frequency, 2400 general board can be used, 3866 needs the motherboard to support XMP, if it is not supported, it may only run 2133 or 2400

DDR43866 and 2400 of computer memory modules, 3866 and 2400 are the operating frequency of the memory module, in MHz. The higher the frequency of the memory module, the better the performance.

It doesn't have to be the same as what the motherboard supports.

When the memory frequency is higher than the frequency that the motherboard can support, it will be automatically downclocked to the running frequency that the motherboard supports by default.

In this way, it is necessary to set the memory overclocking in the motherboard's BIOS in order to run at the normal frequency of the memory module. Of course, even if the memory is overclocked, it can't exceed the maximum overclocking frequency that the motherboard can support.

Yes, as long as the memory has the same generation (e.g., DDR3 generations), it can be mixed, and the BIOS system will automatically match the parameters, including frequency, delay period, etc. Generally aligned with lower performance parameters.

The DDR3L 1600 is compatible with 1333 and DDR3 1333 memory, and there are two main differences:

1.The operating voltage is different. DDR3L memory is a low-voltage version of the internal volcanic storage, and its working voltage is, which has lower power consumption and is more energy-saving; The DDR3 memory is the ordinary Classic memory, and its working voltage is:

2.The supported operating frequencies are different. The DDR3L 1600 supports an operating frequency of 1600MHz, and is compatible with 1333MHz, which means that the memory can also work at 1333MHz.

The DDR3 1333 supports a maximum operating frequency of 1333MHz, and the memory cannot work at 1600MHz.