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    CF-28 Processor upgrade

    Discussion in 'Panasonic' started by speedinz24, Jan 8, 2008.

  1. speedinz24

    speedinz24 Newbie

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    Has anyone upgraded their processor in their CF-28?
     
  2. gravitar

    gravitar Notebook Deity

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    Do you mean de-soldering components from the motherboard and replacing them with faster ones?
     
  3. Modly

    Modly Warranty Voider

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    I'm not skilled enough to do it, and I'm the guy who lost enough marbles to try.

    That's alot of small pins to desolder, then resolder..

    Also, keep in mind, it's a custom pin layout/socket design, so you can't just buy one. You'd have to desolder one from another board.
     
  4. tough-2-go

    tough-2-go Notebook Deity

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    What about overclocking the existing CPU? I would love to bring my 600MHZ machines up to 1ghz!
     
  5. picoshark

    picoshark Notebook Consultant

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    Without any clock or bus options in the BIOS, I would say that's probably not going to be easy. From 600Mhz to 1Ghz ( about 50% faster) is probably too much to hope for, anyway.

    Plus, most (all?) Toughbooks of that era don't have a fan, so it would probably get too hot. There are some aluminum notebook coolers to blow fans on the bottom, but that might not be enough.
     
  6. gravitar

    gravitar Notebook Deity

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    For what I do with mine, I would choose reliability over extra speed any day. If you're just playing games with it or something, you might try experimenting with overclocking
     
  7. Toughbook

    Toughbook Drop and Give Me 20!

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    Going to a faster processor in the CF-28 would sort of be like putting twin turbos on a school bus... Why would you want to??? It just wouldn't be safe. These are built for endurance and relability... Not for gaming.

    Of course you could always buy a CF-30....

    Speaking about buying... I'm poking around for a CF-29... I'll be b uying one in the next few days I think. I'm shooting for a 1.6 but may go down to a 1.4...
     
  8. tough-2-go

    tough-2-go Notebook Deity

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    The point is not to make a gaming machine just to boost the 600mhz to the next level. The three generations of CF-28 are effectively using the same die CPU just clocked higher to get the different speeds. So I don't think that bringing the 600MHZ up to 800MHZ or 1GHZ would significantly impact reliability. Given that 600mhz machines are plentiful and cheap. It may not be possible but I just wanted to toss the idea out there.
     
  9. gravitar

    gravitar Notebook Deity

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    The 600 mobo is significantly different than the 800 and 1000. Now with that said, if you're going to put any effort into it, you might as well focus on the 1000. I mean, why bother making an 800 into an 850 when there's 1000s out there already. If you could make a 1000 into an 1100 or something, then you might have something worth doing.
     
  10. tough-2-go

    tough-2-go Notebook Deity

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    I don't want to mess with the 800 or the 1ghz they are fine the way they are. The 600MHZ is the most promising to bring it to 1ghz because they are cheap and plentiful. Swapping the processor is out of the question so the best way to do this is bring up the bus speed or change the clock multipler. I am looking at some software solutions to start with such as SoftFsb. I need to find out what kind of PLL (clock processor) the 600 is using. Anyone know?
     
  11. gravitar

    gravitar Notebook Deity

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    I will be happy to eat crow when the time comes, but if I were a gambling man I would not put my money on successfully overclocking the 600 to 800 or ESPECIALLY 1000. at least not doing so with any amount of reliability!
     
  12. cadillac

    cadillac Notebook Consultant

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    I kinda like crow. Chop it up real fine and add a little mayonnaise and have a crow salad sandwich. Yummy!
     
  13. GlenB

    GlenB Notebook Consultant

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    I'll be awaiting TB's CF-29 review...

    Just to keep life interesting, you really do need to burn something up now and then...
     
  14. Modly

    Modly Warranty Voider

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    Well, if somebody figures out where the bus multipliers are on the board, I'll give it a shot. I won't overclock it to insane amounts, but I'll try it.

    I do have too many projects on my plate now though to do the research for overclocking...
     
  15. tough-2-go

    tough-2-go Notebook Deity

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    The multiplier is hardwired inside the CPU so you cannot change that. This is what would make it so that you could simply swap out the CPU with another faster one from the same product line up to 1.06ghz IF they were socketed. But unfortunately they are soldered in. So the only solution is to increase the FSB, I am still researching this option and what it would take to do it.