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TICKET ARCHIVE -> I have a 1 year old G5.
nepreilf - Mar 20, 2006 - 9:17 am
I turn it on the fans run high and I usually do not get the spinning gear. I ran the Apple hardware test in conjunction with someone from Apple care and they determined that I need a new hard drive which they will come to replace..
This happened once before but my sister who works on pc's was able to get it started again and it worked okay for the next few months.
When the fans run high is it always a bad thing?
How can I tell that it is indeed the hard drive and not the mother board?
This happened once before but my sister who works on pc's was able to get it started again and it worked okay for the next few months.
When the fans run high is it always a bad thing?
How can I tell that it is indeed the hard drive and not the mother board?
philippe99 - Mar 20, 2006 - 2:37 pm
Hi and welcome to macosx.com
As you imagine, the fans are designed to cool the machine. The fans are controlled by the system. Sometimes, by security, the fans run high:
* during a mac Os Update, because at this moment the system is going to be modified and the software which controls the fans in order to be updated: at this moment, as the fan looses any connection with its software pilot, to avoid any damage, a special electronic circuit -on the fan's motor itself- speeds up it for a max cooling...waiting for the software and the sensor to give back real temperature values.
* when a problem is detected on the hardrive or the logic board
I would suggest tou to download XResourceGraph (http://www.gauchosoft.com/Software/X...ource%20Graph/) and use it to see which fan(s) run high: this can be an indicator to where the problem is located.
There are three fans, the values in quiet must be around of:
CPU fan=1500 rpm
Hard drive fan=2300rpm
System Fan=1700 rpm
Temperatures levels are something like
CPU=50 C°
Hard drive=45 C°
With intensive tasks (Photoshop heavy rendering) or games (Doom, UT, ..), it is normal that the fans run high, due to high temperatures: on my iMac G5 June 2005, with intensive UT/Doom gaming, CPU reaches 80 C°, hard drive 60 C°
High speed fans when turning on the machine is a indicator of something wrong.
G5 of Nov20074-Jan2005 had crucial problems on their motherboards.
Regards
Philippe
As you imagine, the fans are designed to cool the machine. The fans are controlled by the system. Sometimes, by security, the fans run high:
* during a mac Os Update, because at this moment the system is going to be modified and the software which controls the fans in order to be updated: at this moment, as the fan looses any connection with its software pilot, to avoid any damage, a special electronic circuit -on the fan's motor itself- speeds up it for a max cooling...waiting for the software and the sensor to give back real temperature values.
* when a problem is detected on the hardrive or the logic board
I would suggest tou to download XResourceGraph (http://www.gauchosoft.com/Software/X...ource%20Graph/) and use it to see which fan(s) run high: this can be an indicator to where the problem is located.
There are three fans, the values in quiet must be around of:
CPU fan=1500 rpm
Hard drive fan=2300rpm
System Fan=1700 rpm
Temperatures levels are something like
CPU=50 C°
Hard drive=45 C°
With intensive tasks (Photoshop heavy rendering) or games (Doom, UT, ..), it is normal that the fans run high, due to high temperatures: on my iMac G5 June 2005, with intensive UT/Doom gaming, CPU reaches 80 C°, hard drive 60 C°
High speed fans when turning on the machine is a indicator of something wrong.
G5 of Nov20074-Jan2005 had crucial problems on their motherboards.
Regards
Philippe
nepreilf - Mar 20, 2006 - 8:35 pm
thank you soo much for your reply...
unfortunately... they are about to replace the harddrive... I have been getting error messages which indicate hard drive failure but then my sister, who works on pc's, has been able to get it started again. This has happened about 3 times.
It seems to work fine but then when I hear crunching while the computer is thinking it is an indication that the same problem is about to happen.
Should I let them replace the hard drive?
unfortunately... they are about to replace the harddrive... I have been getting error messages which indicate hard drive failure but then my sister, who works on pc's, has been able to get it started again. This has happened about 3 times.
It seems to work fine but then when I hear crunching while the computer is thinking it is an indication that the same problem is about to happen.
Should I let them replace the hard drive?
philippe99 - Mar 21, 2006 - 2:47 am
Yes, if you hear the 'crunch' noises which are a clear sign of mechanical failure of the drive
And surely yes, if you're still under warranty or on an AppleCare plan
Phil
And surely yes, if you're still under warranty or on an AppleCare plan
Phil
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