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Message boards : Number crunching : Laptop Overheating

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SiKTheGreatOne
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321 LLR Bronze: Earned 10,000 credits (60,082)Cullen LLR Bronze: Earned 10,000 credits (15,423)ESP LLR Gold: Earned 500,000 credits (519,856)PPS LLR Gold: Earned 500,000 credits (526,520)PSP LLR Bronze: Earned 10,000 credits (24,206)SoB LLR Bronze: Earned 10,000 credits (14,422)SR5 LLR Gold: Earned 500,000 credits (518,356)SGS LLR Silver: Earned 100,000 credits (102,655)TPS LLR (retired) Bronze: Earned 10,000 credits (31,486)TRP LLR Bronze: Earned 10,000 credits (29,696)Woodall LLR Amethyst: Earned 1,000,000 credits (1,039,198)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,020,771)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,228,565)PPS Sieve Emerald: Earned 50,000,000 credits (84,579,993)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,654)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,211,586)AP 26/27 Silver: Earned 100,000 credits (115,596)GFN Silver: Earned 100,000 credits (200,628)PSA Amethyst: Earned 1,000,000 credits (1,184,000)
Message 12999 - Posted: 26 Jan 2009 | 23:04:29 UTC

Anyone else having laptop overheating issues? I used to be able to run PrimeGrid applications without a laptop cooler in the middle of the summer in a hot room. Now it is the middle of the winter(cold room) and I have a laptop cooler and my laptop overheats running PrimeGrid no matter what I do.
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Message 13000 - Posted: 26 Jan 2009 | 23:38:06 UTC
Last modified: 26 Jan 2009 | 23:38:59 UTC

LLR apps run hotter than sieving. I don’t even try running PrimeGrid (especially LLR apps) on my laptop anymore.

When is the last time that you took it apart and cleaned out all the gunk and dust bunnies? Also, if you can set the whole thing (cooler and all) up on it’s side and have a desk fan blowing on it (when you are not using it, of course) it might help.

Or, if all else fails, stick it in the freezer.
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SiKTheGreatOne
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321 LLR Bronze: Earned 10,000 credits (60,082)Cullen LLR Bronze: Earned 10,000 credits (15,423)ESP LLR Gold: Earned 500,000 credits (519,856)PPS LLR Gold: Earned 500,000 credits (526,520)PSP LLR Bronze: Earned 10,000 credits (24,206)SoB LLR Bronze: Earned 10,000 credits (14,422)SR5 LLR Gold: Earned 500,000 credits (518,356)SGS LLR Silver: Earned 100,000 credits (102,655)TPS LLR (retired) Bronze: Earned 10,000 credits (31,486)TRP LLR Bronze: Earned 10,000 credits (29,696)Woodall LLR Amethyst: Earned 1,000,000 credits (1,039,198)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,020,771)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,228,565)PPS Sieve Emerald: Earned 50,000,000 credits (84,579,993)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,654)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,211,586)AP 26/27 Silver: Earned 100,000 credits (115,596)GFN Silver: Earned 100,000 credits (200,628)PSA Amethyst: Earned 1,000,000 credits (1,184,000)
Message 13005 - Posted: 27 Jan 2009 | 0:48:26 UTC

Haven't cleaned it, don't want to break it. I guess I will have to stop using it too.
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Message 13011 - Posted: 27 Jan 2009 | 1:37:15 UTC - in response to Message 13005.
Last modified: 27 Jan 2009 | 1:41:44 UTC

Haven't cleaned it, don't want to break it. I guess I will have to stop using it too.

Try blowing the dust out of the vents from the outside using canned air. That won’t break it.

And disassembling a laptop is not all that risky. I’ve done it with my crappy old Acer to replace a faulty HDD. It is not that difficult (trust me on that: I am the least computer-wise person you will ever meet.) You could probably find a pdf manual online to show you step-by-step how to do it. Try Googling it.

Just, you know, make sure that you back up all the vital data first. LOL.

Also, I see from your sig that you used to crunch for Einstein which (along with many other projects) run quite happily on laptops. It is just that PG is VERY CPU intensive and tends to generate a lot of heat. So, consider adding a project for your laptop while your desktop machines work PG. :)
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321 LLR Bronze: Earned 10,000 credits (60,082)Cullen LLR Bronze: Earned 10,000 credits (15,423)ESP LLR Gold: Earned 500,000 credits (519,856)PPS LLR Gold: Earned 500,000 credits (526,520)PSP LLR Bronze: Earned 10,000 credits (24,206)SoB LLR Bronze: Earned 10,000 credits (14,422)SR5 LLR Gold: Earned 500,000 credits (518,356)SGS LLR Silver: Earned 100,000 credits (102,655)TPS LLR (retired) Bronze: Earned 10,000 credits (31,486)TRP LLR Bronze: Earned 10,000 credits (29,696)Woodall LLR Amethyst: Earned 1,000,000 credits (1,039,198)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,020,771)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,228,565)PPS Sieve Emerald: Earned 50,000,000 credits (84,579,993)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,654)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,211,586)AP 26/27 Silver: Earned 100,000 credits (115,596)GFN Silver: Earned 100,000 credits (200,628)PSA Amethyst: Earned 1,000,000 credits (1,184,000)
Message 13018 - Posted: 27 Jan 2009 | 5:12:57 UTC

I think all the overheating has ruined the reliability of the laptop. Five minutes into an Einstein application made it overheat and automatically shut down once again.
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Message 13019 - Posted: 27 Jan 2009 | 6:08:18 UTC

Does it run okay normally (that is, without BOINC?), with word processing, playing games, office work, or whatever you normally use it for?

Have you installed a temperature monituring utility like RealTemp to give an idea of the temperatures your cpu is running at?

I am hardly any sort of expert but, while PG can be a challenge, projects like Einstein, SETI or Rosetta are well within the capabilities of most laptops.

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Message 13020 - Posted: 27 Jan 2009 | 6:20:16 UTC - in response to Message 13019.


I am hardly any sort of expert but, while PG can be a challenge, projects like Einstein, SETI or Rosetta are well within the capabilities of most laptops.


I have a pentium M laptop crunching PPS 24/7 for over a month now-- Room temp at the weekends when the office aircon is off reaches 40c -- no probs so far--- Might be you have some other issues with this laptop---
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Message 13022 - Posted: 27 Jan 2009 | 8:13:04 UTC

Why overheating?
The mobile CPUs - at least the ones from Intel - are specified to run with a maximum core temperature of 95 to 100 °C, depending on Model/Stepping.

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Message 13031 - Posted: 27 Jan 2009 | 12:21:27 UTC - in response to Message 13022.

If the cpu fan is working hard when you are just sitting at the desktop then you have a dust problem. If the fan is running full speed and you can not feel any air coming out the vents on the back then you have a dust problem.
The heatsink on the laptop is a great spot for catching hair and lint. It builds up between the fan and the inside of the heatsink. The fan runs at 100% but no air is moving across the heatsink.
With no air movement the cpu quickly heats up and the system will shut down to keep things from burning up. There is a lot more then just the cpu getting cooked even if the cpu can run at 100c.


S.

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Message 13033 - Posted: 27 Jan 2009 | 12:50:56 UTC - in response to Message 13018.

I think all the overheating has ruined the reliability of the laptop. Five minutes into an Einstein application made it overheat and automatically shut down once again.


Sik my friend--- I think you need to open this animal and give it a clean out--- I run 9 hosts in 40+ centigrade environment--- running PPS 24/7-- only problem I have is with an IBM mini desktop (P4 3.2G) most crappy design for air flow I have ever seen--- I added (with duct tape) an additional fan complete with a bit of cardboard to direct air flow & assist cooling--- I am trying always to get this CPU under 80c--- from your posts -- clean the heatsink!!!!!---look to the air flow (Fans)--- do this now and your host might be ok--- If you persist then thermal ablation will destroy your CPU---


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Message 13044 - Posted: 27 Jan 2009 | 15:31:56 UTC

Just to let you know the temperatures of my clients:

Lenovo M57 USFF 81/81 °C
Lenovo T60p 90/87 °C (devolted from 1.404 to 1.244 at full speed) + 84°C GPU
selfbuilt C2D 6400 74/74°C (devolted from 1.340 to 1.260 at full speed)
selfbuilt Xeon E5405 64/59/65/64°C + 93.5/82.5/79/70 °C for FB-DIMM
Lenovo R61 94/89 °C (devolted from 1.356 to 1.180 V at full speed) + 81°C GPU

CPU-Fans for the two notebooks is ~3200 rpm.
CPU-Fan in the Lenovo desktop is of.
CPU-Fan in the Xeon is ~1800 rpm, but RAM is way to hot, i should consider the RAM-Fan ASUS is selling for this mainboard.
CPU-Fan on the C2D is ~2650 rpm

So nothing to fear here.
What temperature did you reach prior to shut-down?

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Message 13056 - Posted: 28 Jan 2009 | 1:18:30 UTC

I will attempt to clean my laptop this friday when I get a chance. I downloaded SpeedFan to see my laptop temperatures. Running Einstein again and so far the laptop has been up for 12 hours, GPU is running at 89C and the CPUs are running at 92C-95C.
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Message 13133 - Posted: 29 Jan 2009 | 20:25:57 UTC

I limit the BOINC setting "use at most % of CPU time" in a separate venue to control the temperature on laptops. I found out that by setting it to 20%, the fan on all my laptops do not spool up, with the temperature remaining around 60C.

Laptops are much more sensitive to temperature failure because they were not build for heavy duty: the air inlets are small, the high-speed fan has weak bearings, the compact design doesn't allow heat to dissipate quickly, etc. All in all, it's better to contribute to BOINC projects at a reduced rate than having to replace the laptop due to a thermal failure caused by power-hungry BOINC projects.

HTH

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Message 13308 - Posted: 2 Feb 2009 | 23:11:52 UTC - in response to Message 13056.
Last modified: 2 Feb 2009 | 23:14:41 UTC

I will attempt to clean my laptop this friday when I get a chance. I downloaded SpeedFan to see my laptop temperatures. Running Einstein again and so far the laptop has been up for 12 hours, GPU is running at 89C and the CPUs are running at 92C-95C.


Those temps are high, but not that bad for a laptop running BOINC. I don't run BOINC on it anymore but the Crappy Old Acer of mine used to routinely hit 97C. :-O
And, as Augustine suggested, throttling it back would help a lot in that regard. (At least as far as the CPU is concerned: not sure if it throttles back the GPU as well?)

So, how did things go during the cleaning on Friday?
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321 LLR Bronze: Earned 10,000 credits (60,082)Cullen LLR Bronze: Earned 10,000 credits (15,423)ESP LLR Gold: Earned 500,000 credits (519,856)PPS LLR Gold: Earned 500,000 credits (526,520)PSP LLR Bronze: Earned 10,000 credits (24,206)SoB LLR Bronze: Earned 10,000 credits (14,422)SR5 LLR Gold: Earned 500,000 credits (518,356)SGS LLR Silver: Earned 100,000 credits (102,655)TPS LLR (retired) Bronze: Earned 10,000 credits (31,486)TRP LLR Bronze: Earned 10,000 credits (29,696)Woodall LLR Amethyst: Earned 1,000,000 credits (1,039,198)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,020,771)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,228,565)PPS Sieve Emerald: Earned 50,000,000 credits (84,579,993)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,654)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,211,586)AP 26/27 Silver: Earned 100,000 credits (115,596)GFN Silver: Earned 100,000 credits (200,628)PSA Amethyst: Earned 1,000,000 credits (1,184,000)
Message 13314 - Posted: 3 Feb 2009 | 5:22:26 UTC

I made one attempt, unscrewed every single screw and the laptop still refused to come apart. This Friday(yes, this is taking some time), I will read the manual that came with my laptop and hopefully it explains how to disassemble it. Right now, I have it limited to 70% CPU usage and it hasn't overheated once. However, 100% is still my goal.
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Message 13315 - Posted: 3 Feb 2009 | 6:59:25 UTC - in response to Message 13314.

I made one attempt, unscrewed every single screw and the laptop still refused to come apart. This Friday(yes, this is taking some time), I will read the manual that came with my laptop and hopefully it explains how to disassemble it. Right now, I have it limited to 70% CPU usage and it hasn't overheated once. However, 100% is still my goal.

If not in the manual you have then there is probably an online manual that you could get.

Keep us posted. This has sort of become a little community project now. LOL.

:o)

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Message 13444 - Posted: 8 Feb 2009 | 23:37:46 UTC

I found a manual on how to disassemble my laptop, but after looking it over I decided it was best I just leave it be. Getting to the CPU/heatsink requires everything else on the laptop to be removed. Compaq really made it time consuming to take apart this laptop.
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Message 13447 - Posted: 9 Feb 2009 | 1:40:53 UTC - in response to Message 13444.

You have a Compaq? Ouch. I had to disassemble one for a class once and I promised myself I would never do it again. Not only do you have to remove everything, but they like to screw everything down at hard to reach angles. I must have spent at least an hour just undoing screws. If you absolutely have to take it apart, pay the extra money to have a computer shop do it for you. Otherwise you'll be tempted to throw it out a window about halfway through.
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Message 13595 - Posted: 14 Feb 2009 | 6:00:26 UTC

I acquired some canned air and sprayed it into the laptop and I did not witness any dust come out. I also used the air on my laptop cooler (the cooler doesn't have screws, so you can't disassemble it) and it removed a lot of dust in fact. Now my CPU temperature is hovering around 70C and GPU around 67C running superlink at 100% CPU usage. I would definitely say it's a good improvement. I'll know in a few hours when BOINC transfers 100% of the CPU usage back to PrimeGrid how well this canned air worked.
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Message 13596 - Posted: 14 Feb 2009 | 6:47:55 UTC
Last modified: 14 Feb 2009 | 6:48:17 UTC

70C is pretty good for a laptop. And if it runs too hot on PG it can certainly handle Einstein or most other BOINC projects. Sounds like you got it solved. :)
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321 LLR Bronze: Earned 10,000 credits (60,082)Cullen LLR Bronze: Earned 10,000 credits (15,423)ESP LLR Gold: Earned 500,000 credits (519,856)PPS LLR Gold: Earned 500,000 credits (526,520)PSP LLR Bronze: Earned 10,000 credits (24,206)SoB LLR Bronze: Earned 10,000 credits (14,422)SR5 LLR Gold: Earned 500,000 credits (518,356)SGS LLR Silver: Earned 100,000 credits (102,655)TPS LLR (retired) Bronze: Earned 10,000 credits (31,486)TRP LLR Bronze: Earned 10,000 credits (29,696)Woodall LLR Amethyst: Earned 1,000,000 credits (1,039,198)321 Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,020,771)Cullen/Woodall Sieve (suspended) Turquoise: Earned 5,000,000 credits (8,228,565)PPS Sieve Emerald: Earned 50,000,000 credits (84,579,993)Sierpinski (ESP/PSP/SoB) Sieve (suspended) Ruby: Earned 2,000,000 credits (2,070,654)TRP Sieve (suspended) Amethyst: Earned 1,000,000 credits (1,211,586)AP 26/27 Silver: Earned 100,000 credits (115,596)GFN Silver: Earned 100,000 credits (200,628)PSA Amethyst: Earned 1,000,000 credits (1,184,000)
Message 13616 - Posted: 14 Feb 2009 | 18:42:35 UTC

After several hours of TPS WUs, 65C GPU and 75C CPU. Everything is working just fine now. The canned air was an excellent suggestion and it only took 30 seconds. Thank you everyone for your help.
____________

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