It's got nothing to do with the noisy fan, but I'd be willing to bet that
you've got a dead PRAM battery. What you need to do to confirm this, before
cracking the case, is to simply try turning the system on for a few
momemnts, then off and on quickly at the power source. If the Pram battery
is dead, the system should start up more or less normally. If it does,
check the system date and time. If the date is 1956 and the time is
~8:30PM, you've definitely got a dead PRAM battery. If the battery is the
standard, 1/2-AA, 3.6-volt, lithium batteries, it has a shelf life of about
ten years and a service life of 3 to 4 years. I'm not sure what the
lifetime(s) are for the cubical, 4.5-volt batteries. Look for a battery
manufacture date stamped on the battery somewhere to finally confirm its
death from old age.
As for the fan, what sort of noisy? Whining, rattling, ascending and
descending scales? First thing I would do is check for dust and
obstructions.
Good luck,
Sp00ky
>Hello,
>
>I don't know if this is the correct forum (list) for this, so don't
>hesitate to steer me to the right one.
>
>I was first called in to solve a noisy fan problem on a PPC 6500/250.
>The teacher said the fan was bad.
>
> 1. I got startup chord after punching Power button. Monitor stayed
>dark. I got an amber preStart glow but no green ON. Not Contrast or
>Brightness problem.
>
>2. At this point teacher said, "Oh yeah, sometimes it won't come on at
>all. Othertimes it does work. But the fan is always noisy." I tried for
>Shut Down "Beep" by punching Power. No "Beep" and no shutdown. Can shut
>down only by turning power source off.
>
>3. I checked out fan noise by disconnecting fan; noise disappeared. I
>hooked up a known good monitor to check other problem. Still amber but
>no green.
>
>4. Tried to start up the computer with Norton Utilities. Still nothing.
>
>At this point my repair CD suggests replacing the Video-Out Card. Why
>would it be the Video Out Card instead of the Audio-Monitor Connection
>Subassembly? Next after that suggestion is this suggestion: Pull all
>DRAM DIMMs; replacing them one-by-one and trying Startup on each
>replacement.. Couldn't I do that before replacing either of the other
>two parts?
>
>Can someone suggest something here? Is one of the three latter steps
>more logical than the other two?
>
>Jim
Sp00ky
--
Spiritus ex Machina
No matter how paranoid you are, it isn't paranoid enough.
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