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Home Forums Can dead battery cause hard disk trouble? — #31 Can dead battery cause hard disk trouble? — #31
Post #31 by onlyonemac
Source ForumCan dead battery cause hard disk trouble? — #31
CategoryTroubleshooting
Post DateWed, 4 Jul 2012 - 17:58
Original URLhttps://68kmla.org/bb/threads/can-dead-battery-cause-hard-disk-trouble.25597/
Post
...i'm thinking the hard drive is bad, witch is totally common, these scsi drives are old and going bad all the time.
How can it be a bad hard drive when he can't get it to boot off floppy either?
It does boot off the floppy-I once said that it was "Sad Maccing", that was my bad boot floppy, not the drive. Floppies are the only thing that give my mac life!

...the reason the hard disk will not spin up - it's not getting sufficient power.
Disk does spin up, the problem is that it spins down again before the mac can boot. Please review the boot timelines posted on the 10th of June.

The voltage outputs from the PSU look okay, the reason it's still not booting is because those voltages are getting lost on the logic board due to likely failing capacitors. Replacing the PSU won't make any difference, neither will replacing the hard disk.
Um... there is no voltage lost on the logic board. Please review the voltages posted on the 1st of July-ignore, however, the statement of the 12V rise, as this was a meter error.

mp.ls