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识别2GB内存只有1GB可用,系统对内存不兼容?

更新时间:2026-08-19 12:56:43 | 编辑:颜面 | 信息来源:互联网

  虽然Win7系统最低安装要求是1GB内存,但是系统运行时候,这点内存会显得很吃紧!于是很多用户会选择买一条1GB内存将电脑升级到了2GB容量,但系统反应速度变化不大。以为可以有更多的内存空间来用,但是进入系统设置后,才发现虽然系统可以识别出2GB内存,但是只有1GB可用,难道是系统对内存不兼容?还是怎么回事呢?

      如下图括号中的提示:

  无论是BIOS还是测试软件,都可以识别出笔记本总共安装了2GB内存,但其中的1GB就是无法被系统调用。一般来说Win7系统会自动识别并使用电脑新升级的内存容量,但如果我们之前用优化软件对电脑的内存参数进行过优化,当再次升级内存时就比较容易出现上述问题。

  在开始菜单的搜索框中输入“msconfig”,调出系统配置窗口,进入“引导”选项卡后点击“高级选项”按钮,原来是“引导高级选项”中限制了系统最大内存容量只有1024。

  取消“最大内存”前的勾选框,或者在最大内存容量对话框中输入2048(根据你的实际内存容量),点击应用。

  重启系统后,你会惊喜的发现被系统“吞噬”的1GB内存终于出来了,此时系统可用内存变为2GB了。

  如果你也发现你的内存出现这种被“吞噬”的现象,还或者是显示安装内存不可用的情况,通过以上的方法修改,就可以让你的问题得到解决,不妨试试看。

  本文适用对象往往是早期用户的电脑由1GB内存后来升级至2GB,之前用优化软件对电脑的内存参数进行过优化,后来就未将内存参数改回来。如果你发现内存部分容量被“吞噬”了,或者显示安装内存不可用,不妨通过本文的方法找找看。


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