Power Mac G5 logic board failure?
#198
Posted 02 November 2008 - 06:21 PM
It may eventually get noticed by Apple, but I doubt it somehow.
peterflat, have you managed to boot from the OS disks, or Apple Hardware test? It would eliminate the main HD & the OS on it.
If you have PCI/AGP cards that have died it could be due to PSU issues like VladimirPain and I seem to have had. (see this post http://forums.macwor...e/669802#669802 )
Out of interest do you use a UPS?
#199
Posted 02 November 2008 - 07:33 PM
interestingly when i took it to tekserve it took them a while to actually get my machine to boot from another os. but they did have success. it was an agp video card that died both times, and no i haven't been running on a ups... oddly enough when I would turn another electronic component on or off that was connected to the same power strip as my g5 it would occasionally wake from sleep, like i had clicked the mouse or something.
thanks for the link, i'll check out the other thread.
#200
Posted 03 November 2008 - 04:28 AM
My G5 has spent its entire life connected to an APC Smart UPS and my building has a power conditioner on the mains. Even with all of this I have the doorstop version of the G5 now. So those of you thinking that if I had just run a UPS my G5 would still be among the living, stop. It may have helped but in all likelihood it would have just delayed the inevitable.
As an aside, my old Beige G3 desktop has been relegated to just a power strip and it is still ticking.
Shawen
#G8444CD....
#201
Posted 03 November 2008 - 05:19 AM
but I suspect the inside of your PSU doesn't have heat damage like mine does & VladimirPain's does?
(see linked images in this post http://forums.macwor.../674793#674793)
I was starting to think that irregular power surges, brownouts or spikes may cause the the fans to go to full blast while sleeping. Perhaps the voltage change just affects the logic board or processors & then the fans go mad to compensate. My G5 died during the last one of these sleep events. Maybe the mains voltage has no effect on this issue, but without a UPS we can't tell.
UPS's were a long shot, but I still think there is value in using them to protect equipment, I just don't trust my supply, since my 2001 G4 has similar PSU scorching & also had one PSU die completely.
#202
Posted 03 November 2008 - 06:57 AM
A major Apple reseller told me that since the G4
Macs G5's have been made in China instead of California,
and they have seen a major increase in problems since then and highly recommends 3yr. Applecare.
In light of this forum and others I believe him. Also considering people are digging out their G3's for ebay sales and they work without problems leads credence to the quality issue of China made Macs.
Buy an old California Mac or go back to PC..great choice.
#203
Posted 03 November 2008 - 07:24 AM
Shawen
#G8444CD....
#204
Posted 03 November 2008 - 07:41 AM
My G5 was assembled in Cork Ireland, & is dead. Perhaps there were issues with the parts, but there is no way I can go back to anything pre-G4. For me it's more logical to get a Mac Mini & contemplate it lasting for a year, it still works out at better value, excluding the extra time to wait for it to finish tasks.
#205
Posted 03 November 2008 - 08:01 AM
peterflat said:
G5 DP 2.0 Ghz.
I too have the same symptom. Mine will chime, boot to the blue screen with the Apple logo (Dark Grey) and freeze there until the machine actually shuts down. Fans will come up to full speed after it reaches that page. I took mine in to a Apple service center locally and they told me it was the Logic Board and at least 1 processor. Could run in cost anywhere from $1800 to $2700 ($900 for the Logic Board, $900 for each pocessor). Might as well buy an new one rather than spend that much for the repairs of this one. 4 years is a short lifespan for a Mac.
G8447
#206
Posted 03 November 2008 - 08:02 AM
Raf
#207
Posted 03 November 2008 - 09:32 AM
I have thought of getting another Color Classic or maybe an SE/30 case. Strip the guts and install mac mini guts with an LCD display and create an interesting little unit.
Shawen
#208
Posted 03 November 2008 - 10:09 AM
S/N RM419XXXXX
I have not had this kind of experience with an Apple product before. This is sold as a "Pro" product. It should not catastrophically fail at 3.5 years.
#210
Posted 03 November 2008 - 10:29 AM
Seems pretty catastrophic to me. The first line of Wikipedia fits this thinking too, if you trust Wikipedia :)
http://en.wikipedia....trophic_failure



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