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high room temperature for extended periods

Message #1 - Posted 2007/05/20 - mugrean

The mac g5 dual processor specs say:
Operating temperature: 50=B0 to 95=B0 F (10=B0 to 35=B0 C)

Is it safe to leave a g5 running in a room at, say 30 degrees celcius, for *months on end*, say at low cpu usage, say around
20%? The fans tend to make a lot of noise in the summer when it's warmer, and I'm wondering whether I might break the machine.

Does the G5 have an automatic emergency shutoff if the temperature (CPU or othercise) gets too high? If so, what
temeprature(s) of which sensor(s) triggers such a shutdown?

Thanks for any help.

Message #2 - Posted 2007/05/20 - Mike Rosenberg

<mugrean wrote:

The mac g5 dual processor specs say:
Operating temperature: 50∞ to 95∞ F (10∞ to 35∞ C)

Is it safe to leave a g5 running in a room at, say 30 degrees celcius, for *months on end*, say at low cpu usage, say around
20%? The fans tend to make a lot of noise in the summer when it's warmer, and I'm wondering whether I might break the machine.

Let me see if I understand this. You want to know if it's safe to leave a G5 running within the temperature range Apple states it's safe to operate in. Um, now why would Apple list ranges of operating temperatures if they did not want you to run the computer within that range?

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Message #3 - Posted 2007/05/20 - mugrean

Well... the g5 gets really noisy when the temp goes up. To me, it sounds like
the machine is struggling to stay cool, and it's not a very healthy sound.

Back to my question... is the g5 smart enough to shutdown if it is overheating?

On May 20, 7:14 pm, Mike Rosenberg wrote:

<mugr... wrote:

The mac g5 dual processor specs say:
Operating temperature: 50=B0 to 95=B0 F (10=B0 to 35=B0 C)

Is it safe to leave a g5 running in a room at, say 30 degrees celcius, for *months on end*, say at low cpu usage, say around
20%? The fans tend to make a lot of noise in the summer when it's warmer, and I'm wondering whether I might break the machine.

Let me see if I understand this. You want to know if it's safe to leave a G5 running within the temperature range Apple states it's safe to operate in. Um, now why would Apple list ranges of operating temperatures if they did not want you to run the computer within that range?

--
<http://designsbymike.biz/macconsultshop.shtml> Mac-themed T-shirts <http://designsbymike.biz/musings.shtml> Humorous/muckraking T-shirts <http://designsbymike.biz/prius.shtml> Prius shirts & bumper stickers <http://cafepress.com/comedancing> Ballroom dance-themed shirts & gift

Message #4 - Posted 2007/05/21 - J.J. O'Shea

On Sun, 20 May 2007 16:55:01 -0400, mugrean@gmail.com wrote (in a previous article):

The mac g5 dual processor specs say:
Operating temperature: 50∞ to 95∞ F (10∞ to 35∞ C)

Is it safe to leave a g5 running in a room at, say 30 degrees celcius,

No.

for *months on end*, say at low cpu usage, say around 20%? The fans tend to make a lot of noise in the summer when it's warmer, and I'm wondering whether I might break the machine.

You'll break the machine.

Does the G5 have an automatic emergency shutoff if the temperature (CPU or othercise) gets too high? If so, what
temeprature(s) of which sensor(s) triggers such a shutdown?

Apple says not to use it at certain temps. Most people would consider their statement a Big Clue(tm).

Thanks for any help.

email to oshea dot j dot j at gmail dot com.

Message #5 - Posted 2007/05/22 - Eric Lindsay

Previously, mugrean@gmail.com wrote:

The mac g5 dual processor specs say:
Operating temperature: 50∞ to 95∞ F (10∞ to 35∞ C)

Is it safe to leave a g5 running in a room at, say 30 degrees celcius, for *months on end*, say at low cpu usage, say around
20%? The fans tend to make a lot of noise in the summer when it's warmer, and I'm wondering whether I might break the machine.

Don't know about the G5 dual, but my iMac G5 survives that each summer in the tropics. Fans will ramp up the harder you drive it. CPU temps normally around 55C, and you are starting to have trouble when it hits 72C.

Using X Resource Graph to track temperatures.

Does the G5 have an automatic emergency shutoff if the temperature (CPU or othercise) gets too high? If so, what
temeprature(s) of which sensor(s) triggers such a shutdown?

You will hear the fans roar? Not sure it it decides to put the CPU into sleep mode when it gets too hot, as I have always noticed heating problems and located the program causing the problem.

Message #6 - Posted 2007/05/21 - Adrian

<mugrean wrote:

Well... the g5 gets really noisy when the temp goes up. To me, it sounds like
the machine is struggling to stay cool, and it's not a very healthy sound.

Back to my question... is the g5 smart enough to shutdown if it is overheating?

Well, obviously the fans will be working harder if you are operating your machine nearer the upper range of acceptable ambient temperature range ... that's what they are there for. It would be very strange if the fans did not kick in when you were working in hot temperatures.

Yes, the G5 is smart enough to manage it's own temperature ...

Adrian

Message #7 - Posted 2007/05/21 - Jolly Roger

On 2007-05-21 06:19:30 -0500, J.J. O39;Shea said:

On Sun, 20 May 2007 16:55:01 -0400, mugrean@gmail.com wrote (in a previous article):

The mac g5 dual processor specs say:
Operating temperature: 50° to 95° F (10° to 35° C)

Is it safe to leave a g5 running in a room at, say 30 degrees celcius,

No.

Why? 30˚ Celsius is well within the stated range of 10° to 35° C.

for *months on end*, say at low cpu usage, say around 20%? The fans tend to make a lot of noise in the summer when it's warmer, and I'm wondering whether I might break the machine.

You'll break the machine.

No. 30˚ Celsius is well within the stated range of 10° to 35° C.

Does the G5 have an automatic emergency shutoff if the temperature (CPU or othercise) gets too high? If so, what
temeprature(s) of which sensor(s) triggers such a shutdown?

Apple says not to use it at certain temps. Most people would consider their statement a Big Clue(tm).

And 30˚ Celsius is well within the stated range of 10° to 35° C.

JR

Message #8 - Posted 2007/05/21 - Fred Moore

Previously, Mike Rosenberg wrote:

<mugrean wrote:

The mac g5 dual processor specs say:
Operating temperature: 50∞ to 95∞ F (10∞ to 35∞ C)

Is it safe to leave a g5 running in a room at, say 30 degrees celcius, for *months on end*, say at low cpu usage, say around
20%? The fans tend to make a lot of noise in the summer when it's warmer, and I'm wondering whether I might break the machine.

Let me see if I understand this. You want to know if it's safe to leave a G5 running within the temperature range Apple states it's safe to operate in. Um, now why would Apple list ranges of operating temperatures if they did not want you to run the computer within that range?

Perhaps an automotive analogy is appropriate. If you buy a 4-wheel-drive SUV and only drive it around town on paved roads, it will last much longer than the same vehicle driven exclusively on very rugged back roads, an authorized and encouraged use.

It's also well documented that computer chips fail in relation to the *4th* power of the absolute temperature. Always running a computer near the top end of the _authorized_ range will likely result in sooner failure. So the question becomes, how long do you intend to keep the computer?

Yes, the Mac _will_ shut itself down if it gets too hot, but there is no guarantee that some damage won't have been done getting to that point.

--Fred

Message #9 - Posted 2007/05/21 - J.J. O'Shea

On Mon, 21 May 2007 11:12:45 -0400, Jolly Roger wrote (in a previous article):

On 2007-05-21 06:19:30 -0500, J.J. O39;Shea said:

On Sun, 20 May 2007 16:55:01 -0400, mugrean@gmail.com wrote (in a previous article):

The mac g5 dual processor specs say:
Operating temperature: 50° to 95° F (10° to 35° C)

Is it safe to leave a g5 running in a room at, say 30 degrees celcius,

No.

Why? 30˚ Celsius is well within the stated range of 10° to 35° C.

for *months on end*, say at low cpu usage, say around 20%? The fans tend to make a lot of noise in the summer when it's warmer, and I'm wondering whether I might break the machine.

You'll break the machine.

No. 30˚ Celsius is well within the stated range of 10° to 35° C.

Does the G5 have an automatic emergency shutoff if the temperature (CPU or othercise) gets too high? If so, what
temeprature(s) of which sensor(s) triggers such a shutdown?

Apple says not to use it at certain temps. Most people would consider their statement a Big Clue(tm).

And 30˚ Celsius is well within the stated range of 10° to 35° C.

You are, of course, correct. My error.

email to oshea dot j dot j at gmail dot com.

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