S5720设备开机进不了系统

发布时间:  2016-12-22 浏览次数:  788 下载次数:  0
问题描述
S5720设备开机进不了系统。
处理过程

1、查看串口打印,是否能进入bootrom模式

2、设备无法进入bootrom模式,启动后反复打印如下信息:

BIOS LOADING ...                                                               
                                                                               
U-Boot 2012.10 (Oct 20 2014 - 19:18:35)                                        
                                                                               
BOARDNAME:   LS5D2S32C002                                                      
DDR type: DDR3                                                                 
MEMC 0 DDR speed 533MHz                                                        
Press Ctrl+C to run Shmoo: skipped                                             
Enabling DDR ECC reporting                                                     
Clear DDR: OK                                                                  
Enabling DDR ECC correction                                                    
DDR Tune Completed                                                             
                                                                               
Press Ctrl+T to Start Memory Test:  0                                          
DRAM:  1.9 GB                                                                  
                                                                               
                                                                               
BIOS LOADING ...                                                               
                                                                               
U-Boot 2012.10 (Oct 20 2014 - 19:18:35)                                        
                                                                               
BOARDNAME:   LS5D2S32C002                                                      
DDR type: DDR3                                                                 
MEMC 0 DDR speed 533MHz                                                        
Press Ctrl+C to run Shmoo: skipped                                             
Enabling DDR ECC reporting                                                     
Clear DDR: OK                                                                  
Enabling DDR ECC correction                                                    
DDR Tune Completed                                                             
                                                                               
Press Ctrl+T to Start Memory Test:  0                                          
DRAM:  1.9 GB                           
          

3、按Ctrl+T检测内存,提示fail

根因
内存故障.
解决方案
内存故障,需要进行硬件维修。
建议与总结
如果遇到设备起不来,且进入不了bootrom模式,提示内存检测的时候,按下Ctrl+T,如果检测有fail,就说明内存故障,需要进行硬件维修。

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