Win7 boot prompt DQS training failed on previous boot how to do

  
            
1, the memory may be unstable, try to change the memory stick if you have memory (usually can be solved);
2, with the motherboard BIOS can be restored default or manually modified in the BIOS to reduce Memory frequency;
3, if you have modified the BIOS before you can try to press the F9 key, select YES and then restore the BIOs factory settings, can solve some problems.

Copyright © Windows knowledge All Rights Reserved