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    Banias 1000Mhz ULV to Dothan ?

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by coolos, Mar 17, 2008.

  1. coolos

    coolos Newbie

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    Hello,
    i'm the happy owner of a chinese laptop (STAMP S26) which has a great Banias 1000Mhz ULV processor (FSB:400Mhz)
    It seems i can change it to Dothan, as the same model was sold with a Dothan 1.73Ghz (FSB:533), and i'd like to try to upgrade it myself.

    It seems that i have 4 switchs on the mainboard, and the 1st is written Banias/Dothan. I think it can change FSB from 400 to 533Mhz ?

    also, i'm a bit afraid of the 3 last switches : is there a risk to simply swap the old and the new processor, because of voltage problems (maybe, i don't know...?)

    The voltage of my Ultra Low Voltage Banias is 0.844V(min) to 1.004V(max) it depends on the load.
    Will it adjust automatically if i put a (non-ULV) Dothan CPU ?

    Thank you for your advises (and sorry for bad english!)
     
    coolos, Mar 17, 2008
    #1
  2. Greg

    Greg Notebook Nobel Laureate

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    ULV processors cannot be swapped or otherwise altered. They are literally soldered onto the motherboard.
     
    Greg, Mar 17, 2008
    #2
  3. Rahul

    Rahul Notebook Prophet

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    I really don't think this model was sold with a 1.0ghz ULV processor and then a 1.73ghz normal voltage processor as well. :confused:

    ULV processors are soldered, not socketed like the normal voltage versions and so are much harder to difficult. I hear they cannot be upgraded/replaced without specialized equipment. I have seen people upgrade ULV processors, but very few can do it.
     
    Rahul, Mar 17, 2008
    #3
  4. ez2remember

    ez2remember Notebook Evangelist

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    Most likely the Chinese manufacturer nether bothered to change the model number... I bet the motherboard/chipset is not the same.
     
    ez2remember, Mar 17, 2008
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  5. D3X

    D3X the robo know it all

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    Yeah I doubt it is upgradable, and even if it is an upgradable socket, you are pretty much on your own trying to disassemble that unit. You would also need a ULV Dothan to match since the cooling may not be rated to cool a non-ULV processor. The other issue is you need to determine which chipset it comes with, I'm willing to bet that it's an 855 Chipset and you're stuck basically with Banias and 400Mhz Dothans.
     
    D3X, Mar 17, 2008
    #5
  6. moon angel

    moon angel Notebook Virtuoso NBR Reviewer

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    As Greg said, LV and ULV cpus are not socketed, they are soldered and can't be swapped.
     
    moon angel, Mar 18, 2008
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  7. coolos_

    coolos_ Newbie

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    I did it !
    I received my 1.73Ghz Dothan, opened my laptop and changed the 'old' Banias 1000MHz ULV (TDP : 7 watts !) with a new, more powerful processor, and...
    It works !

    And i can confirm, my banias ULV is not soldered, it has a socket.
    It's called 'SL6NH'
    picture : [​IMG]
     
    coolos_, Mar 20, 2008
    #7
  8. moon angel

    moon angel Notebook Virtuoso NBR Reviewer

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    Wow... nice! Who would have guessed. I guess in future cpu-z to see if the cpu is BGA or PGA and go from there. Is it running at full speed? Also hows the cpu temperature?
     
    moon angel, Mar 20, 2008
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  9. coolos_

    coolos_ Newbie

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    Yes, it's running at full speed but i'll have to buy some thermal grease for the Dothan : i didn't have some, and used what i found on the banias...

    With the banias ULV, the temp was 48°C and max 52°C on heavy load, and the fan only started at 52°C for some seconds.

    Now with the Dothan, the temp is 56°C at 1.7Ghz continuous (performance mode) and it can go to 63°C at heavy load. Now i can hear the fan ;o)

    I'm very pleased with the result. I have to improve the thermal grease thing, and maybe do a little undervolting to get the fan as silent as before.
     
    coolos_, Mar 20, 2008
    #9
  10. Commander Wolf

    Commander Wolf can i haz broadwell?

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    Cool. The SL6NH isn't listed on Intel's site, so I'm guessing it's an OEM-only model. Which kinda sucks cuz I could really use a socketed ULV to squeeze more battery from some older laptops. Good work with the swap though; the best way to see if these sort of things'll work is to try it yourself :D
     
    Commander Wolf, Mar 20, 2008
    #10