PowerPC :: G5 Fan On High Then Freezes?
Jul 14, 2008
Issues with my G5 DP 2GHZ. My rig has been fine since day one, but since I changed my system drive, and added a second drive, the fan radomly goes into a crazy high speed mode, and then locks up, requiring a hard shut down.
Heres the facts:
*my os is 10.4.9
*2.5 gb ram
*used carbon cloner to copy my original system disc to new Seagate 7200.11 1 TB drive
*installed second 1TB storage drive.
*both drives divided into 6 partitions.
*both drives formatted OS extended [Journaled]
*jumpers are in the correct position
*drive firmware is SD15, the correct, and most current
*drives are set to never go to sleep
*fan/freeze is not task specific, meaning it will lock up with no apps open
*this fan/freeze is sporadic, and has happened three times in the last 4 days.
Ive attached the system log.
I know nothing about these logs, so my apologies if Ive included too much, or not enough data.
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Apr 24, 2007
I have this Power Mac G5 and every now and then it'll freeze up, the fans will go full blast, and the screen will go black. It's not even when I put a heavy load on it.I usually just hold the power button down and do a hard shut down. Does anyone know why this G5 keeps doing this? Should I re-seat the ram and GPU?
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Dec 10, 2007
I have a G5 (Power PC, g5, Dual 1.8 GHZ with 1.25 GB SDRAM, and Mac OS X 10.4.10-phew!) and I recently: added more USB ports using a PCI card, and purchased a non-Apple 22" widescreen display.
Prior to adding USB ports, I was using a hub that ran off its own power source, and used a Samsung 19" monitor.
My situation now: everything starts up fine, but ultimately the fan will kick in at SUPER HIGH and won't stop. I can put my Mac to sleep--which stops the fan noise--but then it won't wake up.
I have run the Apple Hardware test and everything checks out OK. I've also reset the SMU according to directions from this forum; AND I've vacuumed out all the dust bunnies.
The fan runs so loud and so high it sounds like it's an airplane that's about to take off.
Short of bringing in my Mac to a technician, can you recommend anything? My Mac has been glitch free up until now.
Information:
mac G5
Mac OS X (10.4.10)
Tiger
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Dec 21, 2006
I have a Dual 1.8 GHz PowerPC G5 with 2.5 GB of RAM. My fan starts revving really loud when I am using multiple apps (Adobe CS2, Firefox, iTunes) and while watching a video tutorial or AVI movie (both saved on my desktop). It also happens when I am just watching a AVI movie with no other apps open.
I just added one GB of RAM yesterday thinking maybe this will solve the problem since I am running multiple apps. This did not resolve it. So I searched the messageboard for threads on fan issues similar to mine. I read it may be caused by the tempature in my room. I keep the tower on my floor on top of 2 pieces of wood about a 1/2 inch thick. I live in a small brick studio apartment so the tempature is usaully between 60 to 70 degrees.
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I've been having problems with my Power Mac G5 crashing. The first time it would crash at random, with the fans kicking into high gear the red LED coming on. Apple support had me do an archive an install, no help and then a clean install which didn't help either. I took it into the shop and they replaced the logic board, and tested it.I got the machine back today and after about 2 hours of usage it crashed again, but this time I got a weird screen that scrolled across the screen.I have attached a screenshot and video of the issue:[URL]
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Jan 27, 2008
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My computer, a Powermac G5, Dual 2.0Ghz, 1st Edition Released Oct 2003, will just freeze. It usually happens within 5 minutes of booting into the operating system. I am also unable to boot from the Leopard or Tiger DVD's to try and install a fresh copy of the OS as they freeze during the install. This is what I have tried so far, but to no avail:
Resetting the RAM and Graphics Card
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Mac OS X Version 10.4 (Build 8A428) 2006-02-10 20:36:25 -0500 2006-02-10 20:36:26.072 loginwindow[84] FSResolveAliasWithMountFlags returned err = -1407
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