CF-29 Everyone told me not to do it!

Discussion in 'Panasonic' started by Azrial, Jan 14, 2010.

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  1. TopCop1988

    TopCop1988 Toughbook Aficionado

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    Not for the faint of heart! :eek:

    SPDTool

    SPDTool can be used to modify the contents of the SPD EEPROM on memory modules. This allows improved performance and compatibility.

    Please note that this is an application designed for experts - improper use can lead to memory modules which will not boot.
     
  2. Azrial

    Azrial Notebook Deity

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    Never heard of it till today, but if it works, this could be the first real advancement in this trick!

    This software has been around and upgraded for over 6 years. I do notice that once it is done, and done right, that the settings can apparently be saved so others will just have to repeat the process. But what are a few Hero's Toughbooks when it comes to advanceing the state of the art?

    Regretabley, I have a 256MB Motherboard so I will not be allowed the oppurtunity to once again risk my Toughbook and my sanity for the benefit of my fellows here on such a noble endeavor... :cry:

    So, who goes first? :biggrin:
     
  3. Shawn

    Shawn Crackpot Search Ninja and Options Whore

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    You have "A" 256mb. What about the others? You can't have just one!

    Toughbooks are like Lay's potato chips. You can't have just one!
     
  4. Driller

    Driller Notebook Evangelist

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    you are right, you can't stop with just one...............Driller
     
  5. Azrial

    Azrial Notebook Deity

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    I am the rule-breaker, otherwise this thread would not be here. ;)
     
  6. TopCop1988

    TopCop1988 Toughbook Aficionado

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    Previously there was no "rule" that you couldn't use the 2GB DDR2 module with the 256MB Mk4/Mk5 CF-29s; just an incorrect assumption.

    You have set "The Rule" that you can. :)
     
  7. stumo

    stumo Notebook Consultant

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    Well since I came up with this hair-brained idea it seems only fair that I give it a go. Its not like you're risking the mobo, its just the RAM stick at risk, since the mobo doesn't have an SPD for the onboard RAM, so you couldn't screw it even if you wanted to.

    I'm in a bit of a catch22 though, because the only DDR2 laptop I have here that allows SPDTool to run is my CF-18K. And it can't boot XP with a 2GB module installed.

    So I'm trying with a 1GB module as a proof of concept.

    So far I have found that decreasing the "Number of Row Addresses on this assembly" cause the module to brick, same with "Number of DRAM Ranks".

    Fortunately I have found a way to unbrick it. Just boot without the module installed, then suspend, and install the module, then unsuspend and run SPDTool on it. Luckily it works. EDIT: Actually this trick may allow me to get a 2B module in there for modification.

    So I'm all out of ideas now, its probably a combination of changes that are required.

    So if there are any DRAM experts on here that can think of what needs changing to decrease the RAM then I'm all ears. Otherwise its trial and error
     
  8. Azrial

    Azrial Notebook Deity

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    Since your plan requires modifying the auxiliary stick of RAM, why not do so on a 256MB board and then move the now modded stick to a 512MB board so that total system RAM never exceeds 2.25GB?
     
  9. toughasnails

    toughasnails Toughbook Moderator Moderator

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  10. TopCop1988

    TopCop1988 Toughbook Aficionado

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    Here's how we stand as of this posting:

    View Poll Results: Select Your Favorite Nominee in the NBR Amazing Content Contest

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    Last edited by a moderator: May 8, 2015
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