Hi everybody i have a question . I have a Uniwil N241S1 and recently my laptop fan died so i change it but it's not original i took it from an old desktop pc it works but the temperature on stand by is around 71°C and on extreme use is around 81°C. Is it normal to be so hot? The processor is an Intel Pentium III E 1,1 GHz. I repeat the fan is not original . Thank you!
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John Ratsey Moderately inquisitive Super Moderator
1. The temperatures are high, but not exceptional. CPUs can usually operate without problems up to nearly 100°C.
2. Did you use a thin layer of thermal paste when mounting the fan onto the heatsink / CPU. No thermal paste, or too much, will reduce the heat transfer.
3. Is the fan continuously running or is it controlled by the computer?
John -
yes it has thermal paste and its working continuous, it's not controlled by the cpu but there is a little problem ,the fan that i putted in has an opperating voltage of 12v and the original fan had 3v or 5v so now its running on half the speed it should work my question is: Can i hook the fan to the battery charging pins on the laptop so i can get 12-14v from there to operate my fan at full speed ? The laptop doesn't have a battery any more it's gone
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John Ratsey Moderately inquisitive Super Moderator
Thanks for the clarification. I now understand why the cooling fan is not very effective. I would agree that you try to connect it to a higher voltage source. You may want to include a variable resistor into the connection so that you can have more control over the fan speed. I suspect that you don't need the full 12V to provide enough cooling and if the fan runs at 12V it may be very noisy. I would guess that around 8V might be a good compromise.
John -
i made a small modification now i hooked the fan to an external power supply it gets arround 9 v butt still i don't like the fan rpm its stil too low and it doesn't get smooth air flow for the processor to cool down, i'm affraid to connect it to the battery charging pins on the laptop beacause it ca burn my fan, is there a standard charging voltage for all the laptops or it's different from a laptop to another. And i have yet another problem with it when i turn it on connect it to the internet it works fine but after 30-40 minutes the internet gets disconnected by its self and i can't connect it unless k restart my laptop , the start bar freezes i have changed my operating system over 3 times it is not from there ,what's wrong with it ? I contact my internet provider and thy say that there is no problem with the internet but my laptop has a problem
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John Ratsey Moderately inquisitive Super Moderator
1. If you can find more than 12V in your notebook than you can use a resistor to reduce the voltage across the fan. However, the rating of the risistor will depend on the current used by the fan. Is there any indication of this on the label? For example, if the fan current is 0.1A and you need to reduce the voltage from 16V to 12V then you need a resistor rated at 4/0.1 = 40 ohms. The charging voltage varies between computers but is usually between 15 and 12V.
2. Is your internet connection wired or wireless? Check the manufacturer's site for any newer driver. Have you tried the DOS command IPCONFIG /RENEW which tells your computer to renew its IP address?
John
Laptop Uniwil N241S1 temperature
Discussion in 'Other Manufacturers' started by mydylyn, Jan 5, 2011.