Update: The PC Tech person reconnected all the wires, reseated the
11GB RAM, and hard drive connections, and such, and the machine
started up for them. They were satisfied and sent it home with me.
Then the same symptoms occurred for me: Shut down with Temperature
Monitor showing A at 74°C, B at 34°C and eventually just a blank
screen with LED red lights 1 and 6, and no action. It bothered me that
the PC Tech person did not let it run a while ... (they were multi-
tasking) ...
Given all this:
On Jan 2, 2013, at 10:51 AM, Bill Connelly wrote:
At times it would run a while, but I noticed cpu temps were bad for
cpu A 84°C and cpu B 24°C. So I shut it down.
This is really bothering!
Yes troubling, to say the least ... from a Diagnostic Dump found
recently in the G5s log:
Dec 30 06:41:24 Power-Mac-G5 kernel[0]: [7] "CPU A1 DIODE TEMP"
Type:"temp" Id:21 CUR:95.2048 C <<<<<<<<<< Note
Dec 30 06:41:24 Power-Mac-G5 kernel[0]: [9] "CPU A0 DIODE TEMP"
Type:"temp" Id:11 CUR:99.63488 C <<<<<<<<<< Note
What's the chance that the following (basically, deep clean the
machine) might solve the high temperature problem?
(from an e-mail to a friend offlist)
A final note for tonight. This reference may show what a possible
solution is:
https://discussions.apple.com/thread/2159019?threadID=2159019
Basically: Clean out the deeply hidden dust-bunnies ... Over-
heating solved ... machine will stay up.
Maybe this would do it: remove the cpu cover, and carefully clean,
Maybe remove the Heat SInk and attached cpus, and clean further.
Remove the cpu card and clean there, reseating with fresh thermal
paste and/or thermal pads. Check for Coolant Leaks. This is what I
was asking for today, in addition to making sure all the electrical
connections were secure.
I did blow out considerable dust when I first got it ... and cleaned
a fair amount off the radiator to the right of the double-fans which
are in front of the RAM slots. But I did not go deeper into the cpu
area.
Perhaps a Certified Apple Technician, that knows about the Power Mac
Quad Core 2.5Ghz, is what is needed for the deep cleaning of the
cpu / cooling system check.
Latest Best Guess.
g3-g5 list Experts ... Comments welcomed. THX
--
You received this message because you are a member of G-Group, a group for
those using G3, G4, and G5 desktop Macs - with a particular focus on Power Macs.
The list FAQ is at http://lowendmac.com/lists/g-list.shtml and our netiquette
guide is at http://www.lowendmac.com/lists/netiquette.shtml
To post to this group, send email to [email protected]
For more options, visit this group at http://groups.google.com/group/g3-5-list
