[G5] G5 June 2004 dual 2.0 Processor problem

[Andrew J. Yon III]

> On Sep 22, 2008, at 8:01 PM, Eric Volker wrote:
>
> One possible problem may be the temperature sensors and/or  
> overheating. When you lock up, are you running intensive tasks, or  
> does it just happen at random? You've obviously opened it up; is  
> there a lot of dust on the inside of the G5 or in the power supply?  
> Have you looked at your system logs to see if there might be a clue  
> in there? I'd also try running a temperature monitoring program and  
> see if temperatures are getting unusually high in the processors.  
> Just a few suggestions...
>
> Eric



Thanks Eric (and by the way, the others who have responded so far) for  
reminding me of the temperature side of this issue. It is the one  
issue that is really driving me nuts. I purchased iStat application  
version 2.0 and Hardware Monitor application 4.5.1 . Both are very  
good temperature (and other readings) monitoring applications. They  
both appear to be giving normal readings right up until it freezes.  
Oddly enough though there are slight variances in the values of the  
readings that they each give. Istat's readings are always slightly  
lower than HM's.

Here are the present readings from HM :

_______________________________                                 
__________________________________
1.5430  
V 
                                                                                         1.5430 
  V
CPU A  
Voltage 
                                                                              CPU 
  B Voltage

6.64  
A 
                                                                                             6.74 
  A
Processor Card A 12V Supply Current                                    
Processor Card B 12V Supply Current

38.09  
A 
                                                                                           38.33 
  A
CPU A  
Current 
                                                                              CPU 
  B Current

57.6℃/ 
135.7 
℉ 
                                                                             57.8 
℃/136.1℉
CPU A Die  
Temperature                                                            
CPU B Die Temperature

1008  
RPM 
                                                                                     545 
  RPM
CPU A Intake  
Fan 
                                                                        CPU 
  B Intake Fan

1040  
RPM 
                                                                                     562 
  RPM
CPU A Exhaust  
Fan                                                                    
CPU B Exhaust Fan

22.5℃/ 
72.5 
℉ 
                                                                              23.0 
℃/73.4℉
Processor Card A  
Ambient                                                      Processor  
Card B Ambient

28.5℃/ 
83.3 
℉ 
                                                                             1000 
  RPM
Drive  
Bay 
                                                                                     Drive 
  Bay

49.6℃/ 
121.3 
℉ 
                                                                          20.0 
  %
Main Logic Board  
Backside                                                   Main Logic  
Board Backside

76.6℃/169.9℉
Memory Controller Heatsink

42.0℃/ 
107.6 
℉ 
                                                                         42.0 
℃/107.6℉
SMART Disk ST3160023AS (3JS0ZAGT)                         SMART Disk  
ST3160023AS (3JS300S7)

29.0 %
PCI Slot Fan


It does not seem to make any difference whether or not I am using  
intensive applications or just surfing the net or reading emails, this  
problem seems random.

I am not efficient at reading the system logs. Where would you suggest  
looking for information in the logs ?


Andy3