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    Question on QS T9800

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by Drk1989, Apr 4, 2010.

  1. Drk1989

    Drk1989 Notebook Enthusiast

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    Iam gettin a QS T9800 soon.
    As I am a cpu noob I dont know much about Thermal specs.All I can figure out now is that I am probably going to have heat problems because my current processor has 25 TDP and the new one has 35 TDP.Should I take down the Vs? dont know...
     
    Drk1989, Apr 4, 2010
    #1
  2. sean473

    sean473 Notebook Prophet

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    it will be 35W but since it is ES , make sure it has temp sensors otherwise u won't know if it is overheating...
     
    sean473, Apr 5, 2010
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  3. Amnesiac

    Amnesiac 404

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    Well, what is the model of laptop that you have? If you have a laptop with a fairly decent cooling system, then you shouldn't need to undervolt unless you absolutely have to get the lowest temps possible.

    However, if you have something with a cooling system that isn't all that great, like an Asus G51, G71, or G60, then you will most likely be wanting to do all you can to lower temps.

    Also, the temperature difference really isn't all that much, maybe 5C more at the most, if you happen to have one that sucks up more power than another.
     
    Amnesiac, Apr 5, 2010
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  4. Fintan

    Fintan Notebook Consultant

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    Most laptop series come in different processor configurations.
    For different markets and budgets.

    Mine did come with a Pxxxx (25W), but there are also Txxxx models around (having 35W). If this is also the case for your model, you are quite safe to upgrade.
     
    Fintan, Apr 6, 2010
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  5. sean473

    sean473 Notebook Prophet

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    as for heat , u can undervolt... it dropps temps a lot.. i've undervolted my T9400 to lower than P9500 stock voltages... temps are like 20-30C lower under load... and note.. P9500 and T9400 are just the same.. just different TDP.
     
    sean473, Apr 6, 2010
    #5
  6. tuηay

    tuηay o TuNaY o

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    What are your tempratures under load?
     
    tuηay, Apr 7, 2010
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  7. sean473

    sean473 Notebook Prophet

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    well i used to get 100C easily when playing Brothers in Arms Hell's Highway and MOH airborne... now , when playing those games , its usually 75-77C and one or 2 spikes sometimes to 80C so undervolting has helped a lot.. its become much cooler and confortable to game on this oven now... u'll only imagine the power of undervolting when u have a roasting laptop and it cools down like mine... when u have have a laptop with solid cooling , undervolting has little or no effect..
     
    sean473, Apr 7, 2010
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  8. Drk1989

    Drk1989 Notebook Enthusiast

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    Thank you for anwsering so fast and sorry It took me so long to reply.
    My laptop is a 17'' toshiba satellite L555-10r.With my current processor (P7450 @ 25TDP) I get temps up to 54C at 100% load.

    Any suggestions or links on how I can undervolt it in case It runs hot?
     
    Drk1989, Apr 7, 2010
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  9. sean473

    sean473 Notebook Prophet

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    sean473, Apr 8, 2010
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  10. Kevin

    Kevin Egregious

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    The T9800 does not use half multipliers. I can confirm this because I had one.
     
    Kevin, Apr 8, 2010
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  11. Drk1989

    Drk1989 Notebook Enthusiast

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    I got it today and installed it. And It doesnt run hot at all.I had it under 100% load and the temp only went up to 68C after 1,5 hours.

    My min temp is 38C. I dont understant why the P7450's lowest ever temp on my lappy was 42C :s
    ..I guess I should have used AS-5 a long time ago.
     
    Drk1989, Apr 8, 2010
    #11
  12. sean473

    sean473 Notebook Prophet

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    Well then that's good news.. i wasn't sure about T9800 having half multipliers or not.
     
    sean473, Apr 9, 2010
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  13. Drk1989

    Drk1989 Notebook Enthusiast

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    I ve noticed something strange.
    When I set the power management on ''high performance'' mode the VID and multiplier indications (both in cpu-z and coretemp) go berserk and start jumping up and down.Also the frequency seems to dive from 2.92 Ghz down to 2.10 and then back up.

    Is this normal?If not ,what should I do to stabilize it?

    (Oh, I think its because of the cpu's multipliers.Sorry about that)
     
    Drk1989, Apr 9, 2010
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  14. sean473

    sean473 Notebook Prophet

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    use othoros stress testing and see if CPU speed stays at 2.93GHz.. if it doesn't , well RM clock isn't working properly... use CPU-Z to see the proper CPU speed.. and if it stays at 2.93GHz , In the case u were mentioning , its intel's speedstep tech going around with the multipliers.
     
    sean473, Apr 10, 2010
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  15. thinkpad knows best

    thinkpad knows best Notebook Deity

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    One question though, don't you mean ES T9800? I have no idea what QS stands for.
     
    thinkpad knows best, Apr 10, 2010
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  16. sean473

    sean473 Notebook Prophet

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    QS is ES but is one of the more reliable ES models i heard.
     
    sean473, Apr 11, 2010
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  17. thinkpad knows best

    thinkpad knows best Notebook Deity

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    Perhaps it stands for Quality Sample, ie. one which was tested just a hair before they were RTM.
     
    thinkpad knows best, Apr 11, 2010
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  18. Drk1989

    Drk1989 Notebook Enthusiast

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    thats right.QS stands for qualification sample. They are of the latest stepping before theyre actually launched.Good thing about them is the have temperature sensors.

    I am quite happy I got mine,it has passed every torture so far.Even the intelburntest. :D
     
    Drk1989, Apr 11, 2010
    #18