I just installed an IBM GXP 180 harddrive with an ACARD PCI adapter to get an ATA 133 bus.
This was installed after a really big crash had been fixed ( I hope) with Norton and then I ran Diskwarrior about a week later and found some problems.
Anyhoo... Now my rig will not sleep in OSx. It used to go into hibernate, fans and all but now the monitor and (I think) the drives sleep but not the fans. Hard to tell if all the drives are sleeping as the fans are so damn loud I cant hear them after they wind up.
What did I do this time that OSx didn't like?
Thanks for the help!

Im still looking for you, so far i've found this:

TITLE
Power Mac G4 (QuickSilver 2002): Important Information About System Sleep

TOPIC

This document discusses important information about system sleep and your Power Mac G4 computer.

DISCUSSION

Important information about system sleep

Certain system settings may prevent your computer from going to sleep. You may notice that the screen dims and the sleep indicator light pulses, but the internal fan still runs.

Many communications programs, such as PPP, Apple Remote Access, and other dialup programs, monitor the computer's modem port to check for incoming transmissions when set to auto-answer incoming calls. This may prevent the computer from going into sleep completely.

If the Configure pop-up menu in the TCP/IP control panel (Mac OS 9) is set to Using DHCP Server, your computer may not sleep when your Web browser or email application is open or a file server is mounted on your desktop. Quit these applications and unmount file servers when they are not being used.

The Palm Desktop HotSync function may prevent your computer from going to sleep. To turn off the HotSync function, open Palm Desktop and choose Setup from the HotSync menu. Then click the Disabled button and verify that the "Enable HotSync software at system startup" checkbox is not selected. Turn HotSync back on when you want to synchronize with your Palm-compatible device.

If you use fax software, such as FAXstf, and the software is set to auto-answer, your computer may not sleep completely. The screen will dim (instead of turn off). To allow your computer to sleep, disable auto-answering. To disable auto-answering in FAXstf, open FaxBrowser and choose Settings from the Edit menu. Then choose the FaxModem icon and choose Never from the Answer On pop-up menu.

Note: If you connect a USB device while the computer is in sleep, your computer wakes.

EXTENDED Information section - Apple Internal Use - Service Providers and Support Professional

(Ill get back to you if I find more info)