Singapore Expats Forum

Hard Labour

Discuss about computers & Internet. Including mobile phones, home appliances & other gadgets. Read about Windows security risks or virus updates.
Steve1960
Editor
Editor
Posts: 1106
Joined: Mon, 13 Aug 2012
Location: Singapore

Hard Labour

Postby Steve1960 » Sun, 14 Dec 2014 5:53 pm

Mac Pro has been running for almost 48 hours continuously with the fans maxing out at 6,200rpm and temperature of the core processor at a constant 83 deg C

Just to copy iTunes purchases to standard MP4 format. during the last 48 hours the Mac has converted 21 of 31 movies and it is seriously hot!

Think I might give it a break to cool down soon!

bgd
Editor
Editor
Posts: 1263
Joined: Wed, 25 Jul 2007

Re: Hard Labour

Postby bgd » Sun, 14 Dec 2014 10:10 pm

It's built for that sort of thing. Let it keep running.

The only time I ever had trouble with mine was when it got turned. It never gets shutdown now.

User avatar
JR8
Immortal
Immortal
Posts: 16514
Joined: Wed, 24 Mar 2010
Location: K. Puki Manis

Re: Hard Labour

Postby JR8 » Sun, 14 Dec 2014 10:24 pm

The other risk is the fan bearing gets clogged with dust and the machine 'blows up'. I witnessed that happening with a desktop. Best not to leave it unattended, or else have a smoke alarm by the fan vent exit.
'Do it or do not do it: You will regret both' - Kierkegaard

User avatar
x9200
Moderator
Moderator
Posts: 9294
Joined: Mon, 07 Sep 2009
Location: Singapore

Re: Hard Labour

Postby x9200 » Sun, 14 Dec 2014 10:56 pm

What model is it? CPU? I believe 83 deg C for Xeons is much above the limit (typically max below 75 deg C, most 65 deg). Or you meant MacBOOK Pro?

Steve1960
Editor
Editor
Posts: 1106
Joined: Mon, 13 Aug 2012
Location: Singapore

Re: Hard Labour

Postby Steve1960 » Mon, 15 Dec 2014 1:21 am

Macbook Pro

Smoke alarm happens to be right above my desk and the computer although a few months ago when I upgraded the memory I gave the fans a clean so should be fine :-)

Yes built to stand it, left it running and it's still going strong will probably leave it until all movies are done copying.

User avatar
x9200
Moderator
Moderator
Posts: 9294
Joined: Mon, 07 Sep 2009
Location: Singapore

Re: Hard Labour

Postby x9200 » Mon, 15 Dec 2014 6:52 am

For macbook pros I believe this temperature is ok (~105 deg C limit for i5/i7 cpus). Besides, most of the systems will just shut down if the safe temperature is exceeded and this is both on software and hardware level.

Not sure what JR8 has witnessed but I have never seen any pc blown up (if understood literarily = smoking etc) for the reason of overheated CPU. Perhaps for older cpus that had no temperature sensors integrated within the chip, but not for any modern (within last 10 years?). Modern hardware is usually quick enough to prevent cpu damage even if you switch it all on without any heatsink or a fan.

User avatar
zzm9980
Governor
Governor
Posts: 6837
Joined: Wed, 06 Jul 2011
Location: Once more unto the breach

Re: Hard Labour

Postby zzm9980 » Mon, 15 Dec 2014 8:27 am

It's only doing this during video conversion, right? Then don't worry. If it happens at unexpected times run Activity Monitor to see what's going on. My parents had a crappy printer where the driver would cause this if the printer wasn't turned on. (The driver was essentially looking for it in an endless loop)

User avatar
x9200
Moderator
Moderator
Posts: 9294
Joined: Mon, 07 Sep 2009
Location: Singapore

Re: Hard Labour

Postby x9200 » Mon, 15 Dec 2014 8:42 am

Unfortunately firefox alone can get the system busy enough with few plugins doing stuff like the dating sliding window on this forum.

User avatar
JR8
Immortal
Immortal
Posts: 16514
Joined: Wed, 24 Mar 2010
Location: K. Puki Manis

Re: Hard Labour

Postby JR8 » Mon, 15 Dec 2014 9:47 am

x9200 wrote:For macbook pros I believe this temperature is ok (~105 deg C limit for i5/i7 cpus). Besides, most of the systems will just shut down if the safe temperature is exceeded and this is both on software and hardware level.

Not sure what JR8 has witnessed but I have never seen any pc blown up (if understood literarily = smoking etc) for the reason of overheated CPU. Perhaps for older cpus that had no temperature sensors integrated within the chip, but not for any modern (within last 10 years?). Modern hardware is usually quick enough to prevent cpu damage even if you switch it all on without any heatsink or a fan.


Hi X9,
Please my post of 3 Feb 2013 here that recounts the experience...
viewtopic.php?f=35&t=92003&start=15&hilit=fan+bang+dust+carpet

I'm imagining that what I described was the components on the PCBs 'blowing up'... don't know. The PC in question was 2-3M from me and under a colleagues desk, that probably maximised the noise. Our group were sited in a pretty quiet corner of the floor, and as mentioned it was like someone emptying a hand-gun on auto into the floor in front of you. I can laugh now... :lol: 8-) But at that moment it felt more like Armageddon had descended...

p.s. That was c'90/91. Hopefully technology has progressed to auto shut-down overheating CPUs and associated boards etc.
'Do it or do not do it: You will regret both' - Kierkegaard

User avatar
x9200
Moderator
Moderator
Posts: 9294
Joined: Mon, 07 Sep 2009
Location: Singapore

Re: Hard Labour

Postby x9200 » Mon, 15 Dec 2014 10:19 am

Maybe it was the fan alone? If it was still working esp. on a higher speed and the shaft/blade got detached I could imagine it would be a nice mess and might sound like Chinese firecrackers.
Almost anything made of "plastic" used in the components if used at constantly elevated temperatures will get brittle over time.

Steve1960
Editor
Editor
Posts: 1106
Joined: Mon, 13 Aug 2012
Location: Singapore

Re: Hard Labour

Postby Steve1960 » Mon, 15 Dec 2014 10:32 am

zzm9980 wrote:It's only doing this during video conversion, right? Then don't worry. If it happens at unexpected times run Activity Monitor to see what's going on. My parents had a crappy printer where the driver would cause this if the printer wasn't turned on. (The driver was essentially looking for it in an endless loop)


Yes it's only while doing video conversion the rest of time it's fine. Still running now, I think the conversions will be complete by the time I get home after work today.

bgd
Editor
Editor
Posts: 1263
Joined: Wed, 25 Jul 2007

Re: Hard Labour

Postby bgd » Mon, 15 Dec 2014 10:50 am

Steve1960 wrote:Macbook Pro



That' s quite a different machine. I've had much better reliability from Apple laptops than the Mac Pro. As I understand it, if the machine gets too hot it will shut down of it's own accord. Basically you don't need to worry.


  • Similar Topics
    Replies
    Views
    Last post

Return to “Computer, Internet, Phone & Electronics”

Who is online

Users browsing this forum: No registered users and 0 guests