Sidebar Sidebar
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

Thermal Calibration for PowerMac G5

P

pgrif

macrumors regular
Original poster
Sep 4, 2012
198
0
Eugene, OR
I have a Powermac G5 2.7mhz DP and have run Thermal Calibration from ASD 2.5.8. my results have been : Error tafs out of range Replace processor.
What does this mean? Are my processors shot? The computer seems to run OK with just a bit more fan noise than I would like.
thanks.
 
Last edited:
Altemose said:
Not sure but didn't that model PowerMac G5 require ASD 2.6.3?
Click to expand...

With Apple Service Diagnostics 2.5.8 you could test these G5s:
Power Mac G5
Power Mac G5 (June 2004 Series)
Power Mac G5 (Late 2004)
Power Mac G5 (Early 2005)

Only Late 2005 model with Dual Core CPUs / PCIe / DDR2 require ASD version 2.6.3 and with this problem:
ASD 2.6.3 for PowerMac G5 (Late 2005) will not boot on the OS portion the DVD, only OF testing is supported. If you attempt to run Diagnostic (OS) from the system picker the system will hang while trying to boot into OS.

For OP:
Try to remove CPUs and than put them back, just to be sure.
By the way, which LCS is on your 2.7 ? Delphi single pump od maybe Panasonic ?
 
Last edited:
number of pumps

It looks like I have 2 pumps. Panasonic? it is an early 2005 model.
i also have another problem with this computer. After it is shut off, it needs a 20 minute "rest" before it will restart.
 
bax2003 said:
With Apple Service Diagnostics 2.5.8 you could test these G5s:
Power Mac G5
Power Mac G5 (June 2004 Series)
Power Mac G5 (Late 2004)
Power Mac G5 (Early 2005)

Only Late 2005 model with Dual Core CPUs / PCIe / DDR2 require ASD version 2.6.3 and with this problem:
ASD 2.6.3 for PowerMac G5 (Late 2005) will not boot on the OS portion the DVD, only OF testing is supported. If you attempt to run Diagnostic (OS) from the system picker the system will hang while trying to boot into OS.

For OP:
Try to remove CPUs and than put them back, just to be sure.
By the way, which LCS is on your 2.7 ? Delphi single pump od maybe Panasonic ?
Click to expand...

I could not remember fully! Glad you were able to post this information.

pgrif said:
It looks like I have 2 pumps. Panasonic? it is an early 2005 model.
i also have another problem with this computer. After it is shut off, it needs a 20 minute "rest" before it will restart.
Click to expand...

That sounds like a power supply capacitor issue.
 
Altemose said:
I could not remember fully! Glad you were able to post this information.



That sounds like a power supply capacitor issue.
Click to expand...

Sounds like as long as it works I shouldn't worry about it. It's not doing anything crucial, I have other computers doing the important things. It was given to me because of the flaky startup problem. It's become kind of a hobby to try to get it to work right.
 
pgrif said:
Sounds like as long as it works I shouldn't worry about it. It's not doing anything crucial, I have other computers doing the important things. It was given to me because of the flaky startup problem. It's become kind of a hobby to try to get it to work right.
Click to expand...

Bad PSUs tend to destroy circuitry (mobo, HDD, ODD, etc) so don't put important data on it without any backup
 
pgrif said:
It looks like I have 2 pumps. Panasonic? it is an early 2005 model.
i also have another problem with this computer. After it is shut off, it needs a 20 minute "rest" before it will restart.
Click to expand...

Ok, its dual pump Delphi. While CPUs are out of the case, its good opportunity to check LCS for leaks. I am telling you this because of statistics:
pmg5_components.png

(Red cells indicate repairs significantly above average (ie, less reliable))

Quite a few 2.7 G5s had a cooling failure, and those are component repairs when those machines were sold, so almost 9-10 years ago....1.35 GHz FSB....I can just imagine 3.0 GHz G5, 1.5 GHz FSB and LSC cooling on chipset and memory controller.
 
Last edited:
Let it die.

I am thinking that I probably don't want to put much more time and no more money into this computer. It's fun to try to puzzle what's wrong with it, but it's just a hobby.
I appreciate very much all of the information I've gotten from everyone.
 
pgrif said:
I am thinking that I probably don't want to put much more time and no more money into this computer. It's fun to try to puzzle what's wrong with it, but it's just a hobby.
I appreciate very much all of the information I've gotten from everyone.
Click to expand...

It may still be worth it to pull the CPUs and check the LCS. What will you do if you decide to abandon the project?
 
What will I do?

Altemose said:
It may still be worth it to pull the CPUs and check the LCS. What will you do if you decide to abandon the project?
Click to expand...

I may check the LCS and the processors, but if give up I'll donate the stripped unit to the place that I volunteer, NextStep. They recycle and refurbish electronic stuff. They have a few of these computer to get parts from.
 
pgrif said:
I may check the LCS and the processors, but if give up I'll donate the stripped unit to the place that I volunteer, NextStep. They recycle and refurbish electronic stuff. They have a few of these computer to get parts from.
Click to expand...

Take all the guts out and sell the case! G5 cases are in big demand!
 
pgrif said:
I may check the LCS and the processors, but if give up I'll donate the stripped unit to the place that I volunteer, NextStep. They recycle and refurbish electronic stuff. They have a few of these computer to get parts from.
Click to expand...

If the case is in good shape you can strip it and sell it. Like poiihy said, those PowerMac cases are in high demand amongst Hackintoshers.
 
Thermal calibration

How does synchronizing the fans work? Doesn't thermal calibration do this. The fans on my 2.7 are rather noisy. i've adjusted performance to minimum. I can find no coolant leak, but did find a tiny component(capacitor maybe) loose in the case.
 
pgrif said:
How does synchronizing the fans work? Doesn't thermal calibration do this. The fans on my 2.7 are rather noisy. i've adjusted performance to minimum. I can find no coolant leak, but did find a tiny component(capacitor maybe) loose in the case.
Click to expand...
Can you post a photograph of the loose component?
 
You must log in or register to reply here.
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.
Top Bottom
Back