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Amiga computer related discussion => Amiga Hardware Issues and discussion => Topic started by: leofoe on May 07, 2007, 01:56:28 PM

Title: Slow A3000 clock
Post by: leofoe on May 07, 2007, 01:56:28 PM

I replaced the battery on my A3000's motherboard as there was some acid leaking. All seemed to be well at first. The clock was running fine. Switching on and off: the time stayed OK. So I left it on for a day to charge the battery. Then I switched it off and left it for a few days.
Now I switched the computer on to discover that the clock is slow. The time is about 17 hours retarded (or delayed or what is the English word for that). Any ideas what could be wrong?

Title: Re: Slow A3000 clock
Post by: pedro7 on May 08, 2007, 01:28:23 AM

This is a bit of a guess but your problem is similar to one I had.

I had a digital timer, like a stop watch but it only counted whole seconds. I put a new battery in after a long time of not using it. I then found it was not counting every fourth second, so it counted 5 seconds as 4.

so it would count
0:00 <1 second gap> 0:01 <1 sec gap> 0:02 <1 sec gap> 0:03 <2 sec gap> 0:04 <1 sec gap> 0:05 <1 sec gap> 0:06 <1 sec gap> 0:07 <2 sec gap> 0:08 <1 sec gap> 0:09 <1 sec gap> etc....

So the amount the clock is slow by is one fifth of the total time elapsed. You say it was slow by 17 hours, 5*17 = 85 hours = 3 days 13 hours. Which sounds like the "few days" you left it for!

I managed to fix my timer simply by turning it off and on again. So maybe somehow temporarily breaking the connection between the battery and the a3000 would reset the hardware clock and get it counting properly again.