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Old 2010-05-26, 21:33   #1
Flatlander
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"Chris"
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Default Cons of running LLR on laptop full time.

Hi
I'm thinking of getting a dual core laptop and am hoping to leave it plugged into the mains running 2 x LLR when I'm not using it.

Do you think I will have problems with heat?
Am I likely to drastically shorten its life?
Any other considerations?

This looks quite tasty:
4GB, 64bit system

Any comments/experiences appreciated.
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Old 2010-05-26, 22:00   #2
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I think you'll know in short order if heat is going to be a problem. Just monitor it and make sure it stays within acceptable limits. When I run LL on my laptop it kicks the fan into high speed, but it runs just fine. The noise might bother you however.
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Old 2010-05-26, 22:25   #3
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The biggest issue is caused by the fan running all of the time. The fan and other internal components will accumulate dust more quickly than an idol computer, although it will still be slow. Eventually that dust will prevent the CPU from cooling efficiently and it can shutdown or overheat when you least expect it to. That happened to me, until I cleaned out the dust buildup.
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Old 2010-05-26, 22:29   #4
joblack
 
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Quote:
Originally Posted by Flatlander View Post
Hi
I'm thinking of getting a dual core laptop and am hoping to leave it plugged into the mains running 2 x LLR when I'm not using it.

Do you think I will have problems with heat?
Am I likely to drastically shorten its life?
Any other considerations?

This looks quite tasty:
4GB, 64bit system

Any comments/experiences appreciated.
I have a laptop running all the time. You could get problems with the harddisk (it may not be build for 24/7 work) and the laptop could crash if it gets too hot. Shouldn't happen but I would say: Try it out.
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Old 2010-05-26, 22:36   #5
lycorn
 
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I second rogue´s advice. From my experience of running GIMPS on laptops, I can confirm that dust built up and the rotational noise of the fans are the cons to consider. I don´t think that shortening the life of the laptop is a concern, as computers generally tend to grow obsolete before the Hw gives way.
A word of warning, though: with Prime95 running, the need for the ventilation grid to be unobstructed is REALLY a must, so be careful when using the laptop on non rigid and/or non flat surfaces (e.g. on your lap, or on a table with a cloth on it). You should also look periodically for signs of dust built up in the fan, vent grid and CPU heat sink
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Old 2010-05-27, 04:23   #6
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As well as the preceding good advice, keep an eye ear on the fan; it may well be the first component to fail if it runs 24/7 for months. Listen for rattling - or silence.
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Old 2010-05-27, 04:54   #7
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Quote:
Originally Posted by rogue View Post
.... will accumulate dust more quickly than an idol computer....
O worship the Lord Board

Last fiddled with by davieddy on 2010-05-27 at 04:59
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Old 2010-05-27, 06:46   #8
retina
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My personal experience with an Acer laptop:

The fan failed after about 5 months @ 24/7. I kept the vents clean of dust but it didn't help. The fans are cheap and nasty with crappy bearings that wear out too quickly and seize up too easily.
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Old 2010-05-27, 11:10   #9
Flatlander
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Thanks for the replies.
Are the fans something that can be easily replaced; without voiding the warranty?

Considering the probability of something wearing after some months, I suppose an extended warranty would be a good idea. Adds another £100+ tho'.
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Old 2010-05-27, 12:27   #10
rogue
 
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Quote:
Originally Posted by davieddy View Post
O worship the Lord Board
I guess I was thinking American Idol when I wrote it.
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Old 2010-05-27, 15:08   #11
retina
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Quote:
Originally Posted by Flatlander View Post
Are the fans something that can be easily replaced; without voiding the warranty?
Usually, no.
Quote:
Originally Posted by Flatlander View Post
Considering the probability of something wearing after some months, I suppose an extended warranty would be a good idea. Adds another £100+ tho'.
You had better make sure that a worn out fan is covered under warranty. Warranties usually only cover "bad workmanship", not wear and tear from usage.
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