4G memory only shows 3G problem and solution

Yesterday, with the buddy with a computer, the result of buying 4G memory system only shows 3G, just figured out the ins and outs and solutions, sum up.

The reason why only 3G is displayed is that the commonly used XP system is a 32-bit system, that is to say, when all programs (including) the system itself is running, it can use up to 2 32-bit addresses, you can yourself Calculate the 32nd power of 2 is 4G, but the problem is that there are other devices in the system besides the memory, the hard disk of the graphics card and the like all need the address, so the address reserved for the memory is only a little more than 3G, and the rest To be reserved for other devices. The conclusion is that as long as it is a 32-bit system, it can only use 3G of memory, and more systems can not recognize it. It is not Microsoft's fault, nor is it the fault of hardware manufacturers. It is not the fault of computer vendors. The world is changing too fast (remember the feeling when using 32M memory, and then despising some people using 16M memory).

Solutions Dress up the 64-bit version of XP. This method can be solved, but it is not practical, because most of the software on the market does not have a version developed for the 64-bit XP system, so you can only use WordPad as the word when you install this system, and the rest of the time to play minesweeping. Dress up Vista. If you are installing a 32-bit version of Vista, the system can recognize 4G of memory, but can still use 3G (because the maximum capability of all 32-bit systems is 3G), if you install a 64-bit Vista system, you will encounter The problem is the same as 64-bit XP. No software is available. Of course, there is still a problem, that is, Vista is really a garbage system.

Dress up Linux. The great Linux itself is a 64-bit operating system. It is absolutely no problem to use it, and it can make you look cool (most people don't know Linux, you can call them to the computer). That is, do you really have the patience of being alone? Waiting for Windows 7. Will Win7 make Microsoft turn around? This question has been answered by many people who have tested it - Win7 is really good. There are rumors that Microsoft will release Win7 on July 13th, and on the English version of the Win7 official home page, support for 64-bit is promoted as a new feature of Win7, and Microsoft also promises that most 32-bit software will work well. Compatible, it seems that everyone is worth looking forward to Win7, this should be a good solution, but there is no reliable test results, and after the release of the operating system, it will take some time for the application software vendor to develop a new version. At least half a year after the scale is popularized. The remedy. It is to use the Ramdisk software to use the unused memory. The basic principle is to virtualize the memory that cannot be used by hundreds of megabytes into a hard disk, and then use this virtual hard disk as IE cache or Windows virtual memory, which also gives full play to the advantages of fast memory access speed, let your Computer performance has improved a lot, or in Baidu search "play 4G memory", there are more than N reprinted, do not know who is original, pay tribute to the original author. The remedy 2. This is suitable for the big brother who bought 4G memory and uses the integrated graphics card. It is to set the extra memory into the memory of the integrated graphics card. It is not a waste, but the cow with integrated graphics is also buying such a large memory... It is estimated that you are not spending money yourself. About 4G memory only shows that all the contents of 3G are here. For your reference, the problem of 4G memory is a phased inconsistency problem. I believe that with the development of the operating system, it can be solved quickly. It is best not to let everyone down, don't be depressed when you buy 4G buddies. Practice has proved that when the machine was installed, the memory was not enough. Later, I felt that it was not enough to use it. I didn’t encounter the problem of dual channel matching. The old model memory is difficult to find, or the price increase problem, so now with 4G memory should not regret it in the future.