[Ti] freeze and then three beeps

[Eric]

thanks for the reply.  i did not know that that was what the three 
beeps signified. actually, i bought the ram at owc (other world 
computing).  have given them a lot of business over the years.   i'll 
give then a call and get a replacement chip.  thanks, eric


On Thursday, June 12, 2003, at 10:11  AM, Kynan Shook wrote:

> 3 beeps means the computer found no good RAM installed in the 
> computer.  Somebody else suggested that it wasn't seated properly; 
> this is possible, but fairly unlikely.  In my job as a repair 
> technician, I see a fair amount of RAM go bad; sometimes it can be 
> from something like a lightning strike (in which case, you'll see at 
> least 2 or 3 other bad parts in the same computer), but most of the 
> time it's just because you bought whatever was cheapest.  The more 
> expensive RAM comes from companies that do better testing, and have 
> better quality control, meaning less RAM of marginal quality is sold.
>
> That said, let me guess where you bought your memory...  18004memory?  
> (aka Coast to Coast)  Just a wild guess, but I've heard of so much bad 
> RAM coming out of that place that I wouldn't want to touch a computer 
> that's got their RAM installed.  They're also usually the cheapest 
> around.
>
> My personal recommendation would be to use Crucial (crucial.com).  
> They have excellent quality; Apple even uses their RAM, and it's the 
> only major company where the manufacturer (Micron) sells directly to 
> customers.
>
> Another thing to note; you can try using Apple Hardware Test or other 
> software tools to figure out which stick of RAM (or both) is bad, but 
> if they say everything is OK, don't believe it necessarily;  Those 
> tools are generally 100% accurate when they say a component is bad-if 
> the RAM fails, the RAM needs to be replaced.  But it is impossible for 
> those tools to catch even half of all RAM that is marginally bad.  In 
> that case, you have to install one stick of RAM at a time, and see if 
> you still have problems while using the computer (crashes, kernel 
> panics, failures to boot, etc.).  Crashes (hard lockups, not just 
> application crashes) in OS X are more often a sign of bad hardware 
> than those crashes were in OS 9.
>
> Eric <EricDD at myrealbox.com> writes:
>> thanks john: the ram does have a lifetime guarantee.  it's a 512 chip
>> (for 768 total - and I'm running 10.2.6)  but interestingly, this is a
>> replacement chip- the first one caused complete system freezes
>> constantly.  i've had this one for i'm guessing about 6 months now 
>> with
>> no problems.  so the question then is can ram go bad?  i should note
>> that in the last couple weeks i've had a few freezes.  thanks again.
>
>
> Kynan Shook
> kshook at mac.com
> http://homepage.mac.com/kshook/index.html
>
>
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