搞垮黑社会 ThinkPad X300完全拆解记(9)
轻薄小巧的体积不允许X300使用主流的各种移动处理器,为此ThinkPad的设计团队为其选择了低电压版本的Core 2 Duo L7100处理器。
同样为了保证在体积上的最小化,这颗L7100处理器并没有采用常见的FCPGA封装方式,而是采用了早期笔记本上较为常见的FCBGA封装方式,即处理器下部直接焊接在主板上面。这样既可以保证处理器的安装高度大为降低,同时也增强了主板上芯片的兼容和稳定性。当然,FCBGA封装的缺点也是显而易见的:用户没有办法自行更换处理器。
CPU特写
CPU背面夸张地电容排列
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