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    Thinkpad T42 and PC3200 - possible?

    Discussion in 'Lenovo' started by dr_st, Oct 16, 2005.

  1. dr_st

    dr_st Notebook Deity

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    It seems that PC2700 (DDR333) is the standard for the T42. But, in principle, can PC3200 RAM (DDR400) be put into it and work at its full 200MHz?
     
    dr_st, Oct 16, 2005
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  2. vkyr

    vkyr Notebook Consultant

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    No, not at full 200MHz, since this is chipset (Intel 855PM by the T42-series) related/limited!

    So the PC3200 RAM, which is usually downward compatible, will be clocked here in this case also with 166 MHz like a DDR333/PC2700 modul.

    BTW, a PC2700 RAM-modul contains DDR333-Chips, which in a more ideal theoretical case supports a transfer rate of 2700 MByte/s (64 datapipes x 333,33 million transfers per second, usually 2,66 x 10^9 Byte/s or 2,54 real GByte/s).
     
    vkyr, Oct 16, 2005
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  3. dr_st

    dr_st Notebook Deity

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    This explains while the new Sonoma platform really does show a performance boost in most cases. DDR2-533 may not be faster than DDR-400, but it will be faster than DDR-333!
     
    dr_st, Oct 16, 2005
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