WIN7 memory upgrade problem solution summary

                      Upgraded the memory in the first two days, but the cup is, the upgraded memory can not be used! Depressed! So various Baidu, Google, WINDOWS ANWSER forums, customer service ···· finally solved themselves, but in the process learned a lot of ways to solve common problems. Come and share with you. Take 2G memory 2G as an example ---------------- After installing the memory stick, if the display is 3.25G or 4G, congratulations on your upgrade, there is no problem. In the case of 3.25G, your computer must be a 32-bit system. There are only so many addressing ranges in 32-bit ··· unfair comrades can find XX software to solve ·· ------------------- --- If not this value? It may be a problem. Here are all the solutions I have found in recent days. There are only a few on the Internet. First, the system settings 1. Click the Start button, enter msconfig in the search box, press Enter. 2. Click the Guide tab, click Advanced Options, make sure the maximum memory is not checked, and click OK. Second, the graphics card occupancy Some computer graphics card is integrated graphics, so it may take up some system memory as a graphics card, so the memory is displayed after deducting the video card. Third, the motherboard support Enter the BIOS at boot time (press the prompt button when booting, generally have F12 or DEL or F2, etc.), and then look at the memory item in the system information, is it successful to read the newly added memory? If it is not supported, some can be solved by updating the BIOS. Fourth, other Please try to unplug the original memory, only plug in the new memory stick to boot, if successful, plug in the original memory stick to boot. If it still doesn't work, try changing the two memory locations. If a memory module fails to boot, check if it is plugged in. I played Acer customer service ···· hit Kingston customer service ··· even Jingdong Mall customer service hit ··· (although not connected), but failed to solve My problem at the time was to show 4.0GB (1.99GB available). In the end, I was so depressed that I would swap the two memory swap slots, and the problem solved ··· immediately experienced the speed! ! !