| Summary: | 碩士 === 國立臺灣科技大學 === 資訊管理系 === 106 === Traditional DRAM repair method is replacing new DRAM module, replacing new DRAM chip or DRAM backup solution. These belong to hardware repair, and take more time and more cost. When desktop or laptop computer memory malfunction, this thesis presents a software repair method to block this memory location by system firmware (BIOS) and notify OS not to read/write this protected memory address. It uses an easy and rapid way to repair DRAM damage part without any hardware replacement and let OS work normally. It saves the cost of repair and can re-use DRAM component.
The whole repair process includes memory test, error bit address analysis and recording. Then next time system boot, it uses software method block memory address with problems before entering OS to prevent unpredictable issue occur. Even error address numbers exceed repairable number, we still can find out malfunction memory chip effectively by memory controller addressing or PCB layout, and repair it individually. Although system available memory size will be reduced by using software repair method to replace traditional hardware repair method, but it can improve repair cost and time effectively.
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