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RE: Socketed 750 CPU's



  The 755 50Mhz is a DX2-50, not a DX-4.  

>
>No.  The 755 uses the DX-4.
>
>> earlier incarnation of the 755 (and predates the DX4), so I'm not sure the
>> CPU is socketed.  The 755 series *is* socketed.  At least that's what I was
>> told when I asked IBM soon after it was introduced.
>
>Sorry, misprint.  I _had_ a 750C, but I replaced it with a 755C.  The 755C
>has either a DX4-50 or a DX4-75.  I purchased the DX4-75 which were rare at
>the time.  I was originally approached by IBM to purchase the DX4-50 laptop,
>and they would just replace the chip with a DX4-75. 
>
>This implied to me that the chip is socketed, and that the motherboard
>somehow autosenses which chip is socketed.  One of the selling points of the
>DX-50 laptop was that you could upgrade it someday to a DX4-75 by merely
>dropping in a new chip.
>
>
>| Robert George            |  Army Research Laboratory              |
>| robertg@assb01.arl.mil   |  AMSRL-SS-IC                           |
>| Voice: (408) 656-3316    |  2800 Powder Mill Road                 |
>| Fax:   (408) 656-2814    |  Adelphi, MD 20783-1197                |  
>
>A designer knows when he has achieved perfection not when there is
>nothing left to add, but when there is nothing left to take away.
>        -- Antoine de Saint-Exupery
>
>
>

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