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[1@n]

I'm running Cubase VST/24 4.1r2 on a Quicksilver 2002 1000 MHz DP with 1.5 GB RAM.

I get the attached message during boot up: "The built-in memory test has detected a problem with cache memory.  Please contact a service technician for assistance."

A few Google searches show possible causes as RAM seating and bad motherboards.  I vacuumed out the G4 and reseated the RAM and got all three RAM chips... before that it only saw 2 of them.  I've opened the G4 and did the reset button, plus did a PRAM reset several times.  I haven't disconnected every connector I can see and replugging them to see if that might help.  I haven't replaced the battery either.  Aside from needing to reset the clock the computer seems to work normally.

If anyone has any ideas please let me know.

thanks

[devils_advisor]

how about the type of ram? usually you get that kind of punishment if ram goes bad or mismatched ram. you might wanna get some ram.

[GaryN]

I vacuumed out the G4 and reseated the RAM and got all three RAM chips... before that it only saw 2 of them.

Well hmmm… think you might have a memory problem? If the RAM was so marginal that an entire chip was not being seen, you're overdue for some maintenance.
If you don't already have any, go find a can of contact cleaner. Radio Shack is closing up…good place to look if you have one nearby.
Clean the sockets and the RAM chip contacts. Seat them and reseat them a few times.
If you have OSX on the machine, Google "Memtest Mac". There's a free downloadable utility that runs under Terminal to completely test all the RAM.

[IIO]

i agree, it sounds like a bad RAM stick.

[1@n]

Thanks for the replies - makes me hopeful it's just RAM.  I'll pick up a can of contact cleaner.  The RAM is a mix of some credible and some questionable, I have extras so I'll try swapping some and see what happens.

[DieHard]

Download and Burn the Genuine Apple Quick Silver Diagnostic CD Located here:
http://macos9lives.com/smforum/index.php/topic,818.0.html

Boot to the CD (Hold "C" Key) and run the diagnostics

It is extremely small and will burn very quickly.

Unfortunately if it is indeed the Cache memory then you will have to replace the main CPU daughter board or Main motherboard (logic board).

The cache memory is NOT changeable and resides on the CPU daughterboard, however, some logic boards will give this false error when the logic board itself is bad.

[1@n]

I have the (I believe) Apple Hardware Test CD that came with the unit , it says Power Mac G4 on it, is silver, and says SW version1.2.4 691-3462-A on it.  I ran it and it says that everything is good. including all 3 RAM sticks and the logic board.  I did the long version of the test.

[MacOS9Lives.com]

Ours is version 1.2.6

Make sure you let the unit run for a hour or so as to test it when it's hot