Hard drive: Macintosh temp range?

68 degrees Celsius (the international standard of temperature measurement) equivalent to about 155 Farenheit, is way too hot.
I would be concerned when my eMac's HD was getting near 50 degrees Celsius in a heatwave and I would bring in a fan to blow over the computer.
Normally the HD would run about 38 degrees Celsius, as does this latest iMac I'm using.

What you have changed with the fans, perhaps you should change back again and get them blowing hard, to cool down your machine.

Your additional information is helpful and suggest things are not as bad as originally reported by Disk warrior.
One of the problems with older machines, G4's and G5's is that they did not come with many temperature sensors. You have a CPU one and CPU's do run hot; they are in fact the hottest part of the computer.

The other one tends to be one that gathers information from the SMART chip on the HD, and at 52C its up there but it is not as alarming as the temperature in your first post. So what is this discrepancy? I think the data that Diskwarrior is reporting is possibly unreliable due to trying to pull temperature data out of an older machine which is not really equipped to provide much temp data, unlike newer systems that have more sensors than a hospital's intensive care unit.

Perhaps Disk warriors report is some synthesis or opinion rather than hard data, I'm not sure, but those two;
CPU is 67 C;
HD is 52 C.
I would say are hot, but not redlining. I would imagine the weather is still pretty warm where you are, and making sure the intake and exhaust airflow is unrestricted/unblocked is something to consider as well.

Also there seems to be some issue where the HD sensor is located;
Is this what you were playing around with before?
http://www.macintouch.com/readerreports/imacg5/topic2281.html

I also have a Rev A that has had the power supply and mother board replaced.
Per iStat Pro:
CPU= 138
HD=126
WDC WD1600 HD= 133
When my temperatures started going up I started doing standard maintenance by opening it up and blowing the dust out of it. That has lowered my temps and helped considerably.

Have you compared the Disk Warrior reports to other programs? iStat Pro is a free widget which is what I use to monitor my mac. If you haven't used it try running it and see what it reports. You'd think they should be the same but perhaps the data is labeled differently. For what its worth my HD runs hotter than my CPU as well.

Dedo wrote:
BTW-
The other two are:
CPU is 67 C;
HD is 52 C.

What's the difference between the HD:Macintosh (I'm partitioned into 3 volumes and this is the System Volume) and the one shown as the Hard Drive? The Disk Warrior Tech said he thought the last HD was just a heat sensor near the System HD.

Sorry, what I was getting at is how does iStat report the two sensors? I was thinking maybe iStat gave different information as to what the second sensor was reading.

What I was wondering was, did iStat report that you have a 2nd hard drive as well? Apparently it does. I was just suggesting that maybe a different program, such as iStat, would better reveal what that third sensor actually was. I thought maybe Disk Warrior was - in error - mislabeling that sensor as a 2nd HD when it was actually something else. But apparently both programs are reporting it as the same thing.

I'm on an Intel imac and iStat reports 8 different sensors but none of them show up as a 2nd HD so it's not a fair comparison.

I see I'm just confusing the issue so I'll leave it at that.

In Info>Display>Disks it normally only shows my single internal hard drive. But if Time Capsule is running a backup it shows up on the Disks list as well but there's never a temp display for it which is kind of odd. Both are checked though.

The list of temps shown on my mac is; HD: Macintosh, cpu A, cpu A heat sink, airport card, ambient, gpu, gpu diode, and gpu heatsink.

The version I have of iStat pro is 4.7 if that helps.

Message was edited by: pogster