Dell Inspiron 6400 won't start up! Help please!
 

:( My dell inspirion won't start-up, I just replaced the Cmos battery, and I also bought a new battery[kd476, 85w] If I try to boot with or without the battery, same thing happens. After pressing the power button, the 3 green lts come on but then turn off after a few seconds, nothing appears on the...