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288 Posts

04-20-2010

Ottawa

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  • Registered: ‎04-20-2010
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  • Message 1 of 4

How Should Prime95 Behave on a W510?

2010-09-02, 14:11 PM

I saw on another thread this week a suggestion to use Prime95 for testing the CPU/Heat response.  I've never heard that before, so I gave it a whirl.

 

I'm now perplexed at the results.  Running Prime95 and a HW Monitor (I use CPUID) gives the following results:

 

 - My CPU heats up about 1 degree every 30 seconds until it hits 97 Degrees

 - The computer then starts acting really choppy and slow, but the temperature drops down to 60

 - The only way to get the computer the behave at "full speed" again is to pull the power supply and reattach it

 

Basically, my worst fears are confirmed.  I can't run my CPU at 100%, or it will eventually overheat and the BIOS steps in and brutally throttles my performance in retaliation.

 

Am I missing something?  Shouldn't a computer be able to run at 100% CPU indefinitely?

 

 

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395 Posts

08-03-2009

UK

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  • Location: UK
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  • Message 2 of 4

Re: How Should Prime95 Behave on a W510?

2010-09-02, 14:43 PM

unclewebb has developed a great program called ThrottleStop for monitoring and tweaking CPU throttling. You can get the latest version here: http://forum.notebookreview.com/acer/452692-acer-throttlestop-thread.html . Before using it, make sure you read ThrottleStopDocs.html that comes along with the program.

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21115 Posts

12-20-2008

Australia, Melbourne

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  • Location: Australia, Melbourne
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  • Message 3 of 4

Re: How Should Prime95 Behave on a W510?

2010-09-03, 10:58 AM

this is your bios thermal management cutting in to prevent the CPU going into a meltdown. This never use to happen with Lenovo Thinkpads, as they always keep the temperature in check. I am not sure if this is a problem with thermal system design or the thermal management is keeping the fan running too slow.

 

Try the latest version of the TPfancontrol and run the fan at level 7 and then run the Prime95 test, and see whether that prevents the cpu from overheating and throttling back. 

Regards,

Jin Li

May this year, be the year of 'DO'!

I am a volunteer, and not a paid staff of Lenovo or Microsoft
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29 Posts

08-29-2008

Australia

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  • Posts: 29
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  • Location: Australia
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  • Message 4 of 4

Re: How Should Prime95 Behave on a W510?

2010-09-06, 5:44 AM

 


 

Basically, my worst fears are confirmed.  I can't run my CPU at 100%, or it will eventually overheat and the BIOS steps in and brutally throttles my performance in retaliation.

 

Am I missing something?  Shouldn't a computer be able to run at 100% CPU indefinitely?

 

 


What CPU does your W510 feature?

 

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