On Jan 22, 2010, at 11:01 AM, Jonas Ulrich wrote:
So someone gave me a single 533 digital audio g4 yesterday. I successfully put a 733 quicksilver processor in it, and then decided to overclock it to 800MHZ. I "successfully" did this, except that when OS 9 starts up it says that the built-in memory test detected a problem with the cache memory and to contact apple support. I zapped the PRAM, reinstalled OS 9. Nothing worked, I can still use the computer though and it recognizes it as an 800MHZ G4 with 256kb level 2 cache. Thanks in advance!
This is a little out of my area of expertise, I've never had much experience with G4 PowerMacs, but I thought that both the 533 DA & 733 QS were considered "road apples" because of their miniscule L2 cache? The "normal" size of a 733 QS L2 cache IS 256 KB, so if that's what you're seeing, it IS correct. It would seem advisable to get a different CPU with a larger L2, irrespective of whether this L2 is functional or not.
Also, I've seen that message in OS 9 before on Macs that would also boot OS X, for example, I've got an old PowerBook 3400 with both OS 9 and OS 10.3.9 installed. In OS 9 I see the message, but in OS X, System Profiler shows the L2 cache and says it's functional. I decided that the warning in OS 9 was likely wrong, but I'm not 100% sure. There is an old utility from NewerTech called "Gage Pro 1.1" which if I remember right will show your L2 functionality in OS 9.
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