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Troubleshooting General/ Power-On Self Test - 6
Power Macintosh G4 (PCI Graphics):
•
1 Beep:
No RAM is installed or detected.
•
2 Beeps:
Incompatible RAM types are installed (for example,
both SDRAM and EDO installed).
•
3 Beeps:
No RAM banks passed memory testing.
•
4 or 5 Beeps:
Bad checksum for the remainder of the boot ROM
block. The ROM is bad and probably cannot be fixed.