I power up the laptop and the only thing happens is the fan comes on and the four lights including the hard drive just keep blinking.
Remove system battery and power cord.
Remove the keyboard screws, flip KB toward front. Then you will see a small battery, remove the battery for about 30 seconds then replace.
After battery and KB replaced power on unit.
My problem seemed to have been the DVD/CD drive
Tookoff bracket that screws drive in place, Working again !
Maybe bracket was shorting against something....
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m305cvr processor fan comes on 3 lights on power board no beeps no lcd dvd does not operate and pretty sure hard drive not operating and i even put another hard drive in the laptop and same thing
I think it might be the mother board
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