Intel 440MX

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Revision as of 17:14, 13 November 2018 by Bugmenot2 (Talk | contribs) (Added some memory modules that are supported by this northbridge. Replaced the documentation link for a direct link to the datasheet.)

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Intel 82443MX

This is an Intel northbridge.


  • Supports the following processors:
  • Supports the following memory modules, up to a maximum of 256 MB:
    • PC-133 (will be limited to PC-100 speeds)1
    • PC-1001
    • PC-661
  • Front Side Bus (FSB): 100 MHz


  1. The 82443MX is incapable of addressing more than 256MB on a single RAM module, which causes ThinkPads that use this chip to max out at 256MB.

Linux support

This chipset is supported by recent 2.4 and 2.6 kernels



ThinkPads this chip may be found in