Has the QS its original (at release) software? That is, 10.1.2/9.2.2. Is your problem confined to OS 9 environment? Large drive support under OS 9 should be present, but you can check by looking in System Folder for the version numbers of Mac OS ROM (10.2.1) and the three Classic support modules Classic (9.5.0), Classic Support (2.2.1) and Classic Support UI (2.2.1). Without that ROM-in-RAM version the System knows nowt about 48-bit LBA and drives of more than 128GB (real), regardless of a PCI card. I've never used 10.1.x on my MDDs—only 10.4.x—so I have no idea how it behaves with large ATA drives mediated by the on-board controllers. However, a drive of 190GB remains the limit for OS 9 to address (by other than FireWire), as also is 1.5GB of RAM a limit.
Mac OS ROM 10.2.1 came on the G4 (machine-specific, grey) Install CD, but is otherwise hard to find. It may be different now, but I could never find it on Apple's site when I was looking, so you may need to chum up with someone to get it. You may also find it useful to brush up on the difference between CUDA and PMU resets by trawling these forums. Misusing the PMU as if it were a CUDA has a good chance of not resetting your MLB when you need to do so.
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Mac OS ROM 10.2.1 came on the G4 (machine-specific, grey) Install CD, but is otherwise hard to find. It may be different now, but I could never find it on Apple's site when I was looking, so you may need to chum up with someone to get it. You may also find it useful to brush up on the difference between CUDA and PMU resets by trawling these forums. Misusing the PMU as if it were a CUDA has a good chance of not resetting your MLB when you need to do so.
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