Hi Kevin, The fan syncing software is on the original system installation disk. Start up holding down the "D" key. BUT, I take it from what you mentioned you don't have the original system installation disk.
You could download "Hardware Monitor Lite" It will tell you if you have a cpu overheating issue. If one or both CPU's are overheating (+65 degrees C) the fans will run continuously. <http://www.bresink.com/osx/216202/details.html> I guess you have done the suggestions below, but I'll post just in case you have not, or other members with G5 Mac Pro & Power Mac models might be interested. A) Reset PMU & PRAM B) De-Dust the G5 - Over the years of 'fixing' G5 Noisy Fans I found this is the most common cause... DUST! As the fans pull air into the computer, they also pull in dust. Dust can accumulate on the air intake vents, on the fan itself, or on any surface along the flow of air within the computer. When a layer of dust sits atop a hot component, it acts as an insulator, preventing some of the heat from escaping into the air. And if dust blocks the air flow, the heat that does escape has nowhere to go. Either way, your fan must work harder, which not only makes it noisier but also makes it suck in even more dust. You can remove dust by brushing or wiping, by vacuuming, or by blowing it off with compressed air. The compressed-air approach is the least desirable, because it puts the dust right back into the air. An ordinary vacuum cleaner with a hose attachment is more preferred, but before using such a vacuum on the inside of your computer, note the warning just ahead. If you choose the brushing or wiping approach, be sure to use a soft, dry cloth or brush—and a gentle touch. Warning! Conventional AC-powered vacuum cleaners, particularly those with plastic nozzles, can in theory build up enough static charge to damage your computer’s circuitry if used on the inside of a case. To vacuum inside a computer, use either a battery-powered vacuum or an antistatic vacuum designed expressly for cleaning electronic gear. In any case, be careful not to touch the nozzle to any components inside your computer. To de-dust your Mac, follow these steps: 1. Shut down and unplug your computer; also unplug any peripherals or other cables. If your computer is a laptop and has a removable battery, remove the battery. 2. Be sure you have plenty of room to work. If your computer is located under a desk, for instance, move it out into the open. 3. Using your dust-removal tool of choice, remove dust from in or around any holes or slots on the outside of the case. Be aware that some of these openings may be on the bottom or the back of the case, depending on the design. These remaining steps are for desktop computers only: 4. Following the instructions that came with your Mac for installing RAM or other internal options, carefully open the case. The method for doing this varies from model to model. For example: * Most Mac Pro and Power Mac models have a side panel that you can remove without tools by opening a latch. * For iMac G4 models, turn the computer on its side (using a soft cloth to protect the display) and loosen the screws on the bottom plate. * Remove the back cover of iMac G5 models (and early Intel-based iMacs) by placing the computer face down on a soft cloth and loosening the three screws in the grill on the bottom. * The aluminum Intel-based iMacs have only a small compartment for adding RAM; further disassembly is tricky and probably best left to a professional. Cheers, Ronni On 13 Oct 2014, at 9:29 am, Kevin Lock <[email protected]> wrote: > Hi all, > > I am preparing a nice PPC G5 tower for distribution (liquid cooled model). > The fans are very noisy and I have not been able to find a fix on the net. > Both pieces of software I have will not run on this machine. > > Any ideas for me? > > Thanks, > > Kev
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