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Level 4

1,873 points

Temperature readings

I've been involved with Folding@home (http://folding.stanford.edu/English/Main) for a couple of weeks now, and have been aware of the heat generated while my machine has been crunching data.

Today I downloaded the application 'Temperature Monitor' to see what's what. The images show temperatures while data-crunching and then about five miutes after I stopped data-crunching.

Temps.png

Are the high temperatures, those of the cores in particular, a bit too high for continuous operation? I never shut my machine down.

Temperature Monitor doesn't show specified upper and lower limits for any of the temperatures, so I'm quite ignorant of where I stand on this issue.

As an extra question, is there a 'Preview' option available when cooking up a post here? I'm sure there used to be.

iMac (Flat Panel), Mac OS X (10.6.8), iMac G4 15"/800MHz/1GB and PowerBook G4 17"/1.33 MHz/1GB,

Posted on Apr 27, 2012 10:29 AM

Best reply

X423424X

Level 6

14,265 points

Posted on Apr 27, 2012 11:33 AM

I'll answer the posting questions...

First you embed pictures in a post by using the camera tool in the posting toolbar. You png did not appear although your link was valid.

No there is no preview.

View in context

20 replies

Rod Fryer Author

Level 4

1,873 points

May 2, 2012 8:35 AM in response to WZZZ

Regarding the fan, WZZZ, I've seen what appears to be the same model on sale over here for about the price you quoted. I might yet get it to try to bring down the fan speeds in the iMac while also trying to maintain the low temperatures.

WZZZ

Level 6

13,226 points

May 2, 2012 8:56 AM in response to Rod Fryer

You will eventually burn up the HD fan motor running constantly at 2800. CPU at 2K long term isn't that great either. You really don't need to go as low as 38C for the drive.

Rod Fryer Author

Level 4

1,873 points

May 2, 2012 9:19 AM in response to WZZZ

WZZZ wrote:

You will eventually burn up the HD fan motor running constantly at 2800. CPU at 2K long term isn't that great either. You really don't need to go as low as 38C for the drive.

Thanks for the warning. I've stepped the HD fan down to 2400, and the CPU fan down to 1800 for now. I found that at 2000 rpm the HD temperature crept up into the low 50s. I've had a bit of a wrestling match with all of this over the past two days.

I'm sure getting the dust vacuumed out of the grille will have changed the game to my advantage.

Old Toad

Level 10

207,631 points

Oct 15, 2013 2:52 PM in response to WZZZ

WZZZ:

Can you take a look at this user's temperature problem: HT1338 the back side is hot (and no jokes about a hot backside 🙂 )

The temperatures that he posted certainly don't look out of line.

WZZZ

Level 6

13,226 points

Oct 15, 2013 7:33 PM in response to Rod Fryer

Running a fan at the back may also help somewhat.

Temperature readings