Hello everybody, hope this is the right group to post to, am new to macs
and not really sure of the groups yet. Anyway my question is this,
recently i bought a used imac 550 with OS 9 and 10.2 installed on it
when i got it home i upgraded the harddrive to a 80 gig WD from the 15
gig that it came with it, i had written the drive to zero's before i
installed the new one into the imac and installed mac OS 10.3 without
trouble, after about 15 mins of normal operation i got my first kernel
panic, telling me to shut down. Upon researching the problem i read that
it may be ram that causes such a thing so replaced the ram with a new 512
stick of 133 pc ram, after that again kernel panic, had tried changing the
battery, no luck, upon further research i had realised that the paticular
imac i have, no firewire blue, was never even made in a 550 mhz, only a
350 , so then i was thinking that
the person who had the machine before had overclocked it and maybe it was
overheating, upon reading that the only way to overclock these imacs is to
remove the logic board and do some sodering, which is out of my comfort
zone when it comes to working on a computer, anyway i took it to a
certified mac repair shop and told them the story, they looked at it
and and tested it and said there is no evidence of tampering with any of
the logic board or proccessor,and that it was definatly a 350. I then did
some benchmark tests with Xbench and it is rating about par with a 500 so
am a little confused how this can be, I have reset the pram and cudo
switch and still no different, does anyone have any idea what could be the
trouble or some suggestions on what i could try, sorry to ramble on.

Any help would be appreciated,

Thank You,

Walt.

In article <pan.2004.09.25.01.06.54.909653@yohaa.com>,
Walt Mink <waltmink@yohaa.com> wrote:

> Hello everybody, hope this is the right group to post to, am new to macs
> and not really sure of the groups yet. Anyway my question is this,
> recently i bought a used imac 550 with OS 9 and 10.2 installed on it
> when i got it home i upgraded the harddrive to a 80 gig WD from the 15
> gig that it came with it, i had written the drive to zero's before i
> installed the new one into the imac and installed mac OS 10.3 without
> trouble, after about 15 mins of normal operation i got my first kernel
> panic, telling me to shut down.

So you don't suspect the new drive of being the problem?

> Upon researching the problem i read that
> it may be ram that causes such a thing so replaced the ram with a new 512
> stick of 133 pc ram,

I only found PC100 RAM listed for iMac 350's.

> after that again kernel panic, had tried changing the
> battery, no luck, upon further research i had realised that the paticular
> imac i have, no firewire blue, was never even made in a 550 mhz, only a
> 350 , so then i was thinking that
> the person who had the machine before had overclocked it and maybe it was
> overheating, upon reading that the only way to overclock these imacs is to
> remove the logic board and do some sodering, which is out of my comfort
> zone when it comes to working on a computer, anyway i took it to a
> certified mac repair shop and told them the story, they looked at it
> and and tested it and said there is no evidence of tampering with any of
> the logic board or proccessor,and that it was definatly a 350. I then did
> some benchmark tests with Xbench and it is rating about par with a 500 so
> am a little confused how this can be, I have reset the pram and cudo
> switch and still no different, does anyone have any idea what could be the
> trouble or some suggestions on what i could try, sorry to ramble on.

I've seen some older Macs go nuts when they had poor power. They
weren't quite browned out, but they weren't fully powered. (Perhaps the
new drive is taking too much power?) If this is the case, the answer
might be to use a UPS with voltage regulation. (Or on the cheap side,
take the iMac to a place with good power or try turning off heavy
appliances or power-hungry devices in the house, like laser printers,
while you test the iMac.)

>
> Any help would be appreciated,
>
> Thank You,
>
> Walt.

You're welcome

--
Walt Sellers
Macintosh Programming and Support in Central Florida
www.VirtualOutpost.com
ws_usenet@virtualoutpost.com - include the keyPhrase "WhoYaGonnaCall?"
in the body or subject of the message to get past the spam filters.
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