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Oct 1, 2013 12:58 AM in response to romko23by Utane,Hi romko23
I am very new to this. So pardon me should I act in a very noob way.
I recently acquire a Power Mac G5 Quad (OSX 10.5.8) been using it for a while without any problem
except the initial RAM is a bit low (2GB) so feel a little sluggish. So I decided to upgrade the RAM to 10GB. The machine
then start to show some problem with what I thought to be overheat problem the 2nd LED near memory
banks lit up and the machine either go to sleep or ask me shutdown very often.
I include a pic below showing the normal temperature when I am doing almost nothing on it. The temp. can
easily shoot up to (especially 2nd CPU) 70-80 degree C before the symptoms I described above happen.
The fan is also incredibly loud.
Is it possible that I may need to do a thermal calibration. Or if the seating or heat paste (does this model have something like this) that couple the CPU to the heatsink worn off/disintegrate is needed to be redone?
Either way, I heard that to carry out these steps I will eventually need the ASD software. Can you help?
Thanks in advance, Utane
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Oct 1, 2013 2:02 AM in response to Utaneby BDAqua,Hi, & a warm welcome....
Those temps are cgeat actully, no problem there!
More rRAM will likely help a bit.
See if the Disk is issuing any S.M.A.R.T errors in Disk Utility...
http://support.apple.com/kb/PH7029
Open Activity Monitor in Applications>Utilities, select All Processes & sort on CPU%, any indications there?
How much RAM & free Disk space do you have also, click on the Memory & Disk Usage Tabs.
Open Console in Utilities & see if there are any clues or repeating messages when this happens.
In the Memory tab of Activity Monitor, are there a lot of Pageouts?
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Oct 1, 2013 6:59 PM in response to BDAquaby Utane,Thanks for your reply.
I did all the checks you suggested and found them all to be ok. I just upgrade to RAM to 10GB so
no problem there. The Pageouts stays zero, no unusual high CPU or disk activity and no S.M.A.R.T error either.
I notice the temperature of the 2 cores of CPU B are always 10-20 degree C higher than CPU A, in fact if I look at the history from the past 5 days (that's when I install the temperaturemonitor software), the maximum temperature did spiked up to 80-86 degree C. And that's what I suspected causing the freezed up and forced shutdown which lit up the 2nd and 7th LEDs just before it happened. After some research on this site I saw lots of people with G5 Quad reported the LCS module for the CPU B failed causing the overheating. I still need to open up my heatsink cover and do some checking, maybe try swapping processor card as many people did and perhaps re-applying of thermal paste for CPU B to see if it help to bring the temperature down a bit.
Do you know if there is any link to G5 Quad CPU heatsink removal+re-seating howto?
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Oct 1, 2013 8:40 PM in response to Utaneby BDAqua,Ah, yes, you need to likely replace the Thermal paste on thr CPUs and flush/rebuuild the LCS...
http://www.xlr8yourmac.com/systems/G5_CoolantLeak_Repair/G5_CoolantLeak_Repair.h tml
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Oct 2, 2013 9:27 PM in response to BDAquaby Utane,Thanks BDAqua,
finally had a look under heatsink cover, no leakage. I will check/re-apply thermal paste this weekend and see how it goes.
Hopefully, it's not the well-documentd gunk blocking my pipe.
Cheers,
Utane
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Nov 23, 2013 6:23 AM in response to romko23by REY-Music,Hi buddy ! I have an old power mac g5 dual 2.7 ghz early 2005 ! Im replacing the processors !! So i have to do a thermal callibration but i dont have the software !! I think i need the asd 2.5.8 maybe u can help me w that ?
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Jan 31, 2014 12:40 AM in response to Komotionby DeDeadd12,Hi, i have a power mac G5 late 2004 and i just replaced W/LCS but still have my old processors due to old leaking water blocks. What i need to know is do i need to run a thermal calibration if yes can somebody plz help me by telling me where i can get the softwaire.
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Jan 31, 2014 12:41 AM in response to romko23by DeDeadd12,Hi, i have a power mac G5 late 2004 and i just replaced W/LCS but still have my old processors due to old leaking water blocks. What i need to know is do i need to run a thermal calibration if yes can somebody plz help me by telling me where i can get the softwaire.
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Jan 31, 2014 7:49 AM in response to DeDeadd12by Allan Eckert,If you go back and read my post and LordZedd posted on Nov 15, you will find out you can't.
Allan
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Jan 31, 2014 7:50 AM in response to DeDeadd12by Allan Eckert,If you go back and read my post and LordZedd posted on Nov 15, you will find out you can't.
Allan
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Jul 29, 2014 3:28 AM in response to romko23by Ramón G Castañeda,Nice to see you again, romko, especially with the good news.
Check out mt post re my current woes with my G5-Quad.
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Jul 30, 2014 11:40 PM in response to Komotionby romko23,For those who need help with the Calibration. I am in Ukraine right now, so I can access my machine from far away if anyone needs help.
Please all pray for us, its bad here.
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Jul 31, 2014 4:50 AM in response to romko23by Ramón G Castañeda,romko23 wrote:
…Please all pray for us, its bad here.
Sending you best vibes from here, Romko.


