Question about HP Pavilion zd8000 Notebook

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No fan of three fans!

My zd 8000 is a fine computer. Nothing is wrong but... the noise. When i start the computer it won't take long before all three fans start blowing even when i am not doing any tasks whit it.  It' a good thing to see and hear the processor is kept cool but is it necessary to cool so hard when you are just reading mail or so?
Is there anyone who knows if there is anyway to regulate the fans or underclock the core ( i use the laptop mostly for mail, internet and Word. That's also why the noise is so annoying! You lose concentration! )
I'd appreciate any kind of help. Ton

Posted by on

  • ton4sure May 21, 2008

    Thanx! now i can see what's happening. It's working at 3% CPU and i am reading 40C at sensor 0 and 66C at sensor 2.!
    Its sweating for nothing! 

    Fooling around whith the fanspeeds dousn't seem wise at this stage. So i went looking at lowering the FSB speed . I don't know what mainboard or PLL manufacturer and type to put in the windows. So i can let CPUcool do it's own work. It gives me ICS/ 9148-04 for PLL.  The given FSB calculations ,however, do not work! CPU cool states that 8 bytes were found where there schould be 6. 

    Now I'm stuck. Any Idea's ?
    My PAvilion is to be precise a ZD 8320EA s/n CNF5480SWN



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YOu can use software like CPUcool to monitor and manage your system. It uses temperature sensors (if available in your laptop) to measure temperatures, and has features to manage CPU speed and some more.

Posted on May 21, 2008

  • Thx_nb May 22, 2008

    It didn't actually give you ICS /9148-04.
    Those are just the first options of dropdown box.

    Finding the information is not as easy on a laptop, since a desktop is easier too disassemble.
    Actually, at what frequency is your CPU running?
    My laptop has a dual core 2.0 ghz, but it automatically lowers freq to 1 ghz if it is not busy...

    I will look if i can find the information you need.



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Hi all

I have made another guide than the one that was removed from the net.

cleaning your hp zd 8000 in 9 easy steps... with photos and detailed a description.

how to clean a zd 8000 notebook

here is the link :

hope it helps someone out there


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1 Answer

Noisy fan after a few minutes start up

Yeah. i had this problem too. the fan is noisy because it is garbage. it needs to be replaced if you want to get rid of the noice. you moving the laptop wen the noise first started is just coincidence. the heatsink is fine, but the fan itself is poorly made. The ball bearings get loose and so the fan doesnt stay in its vertical plane and it kind of shakes a little, thats why it makes the noise. if you open it up and turn your laptop on, and wait for the noise, you will notice that if you push down lightly on the center of the fan, the noise goes away, because you are creating pressure at it's center of gravity point which makes it stop wobbling. you wont see the wobbling with the naked eye, because its much to slight to see, but its definatly enough to make that annoying fighter jet take-off noise..

as far as the noise, thats the sound it makes when something is wrong with the battery (if you ever drain it all the way down and try to boot it, it will make the noise) kind of messed up noise in my opinion, but its not a big deal, as long as it doesnt repeat. 

for the fan, you dont need to replace it if you dont use your laptop a lot, you can try to keep your laptop cooler to keep the fan from turning on also. i suggest one of those USB fan pads that you put under the laptop, or a thermal pad, thermapak makes one for $30 i think, and it drops temps by 6 degrees celcius they claim, i dont know exact numbers but if def helped me. you can also try to put something in the back to keep the back elevated (where all the heat is) and the fan wont spin as much.

i know with desktop fans that get lots of use, noise is the 1st sign of fan failure to come, but ive been using my laptop with that god awful noise for about 4months now, and its still alive and kicking.

good luck!

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