Techgee
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RE: Upgrading my XPS 435mt CPU

To bring this thread up-to-date, the fastest i7-9xx processors that are upgrade options for the Dell Studio XPS 435MT (Mini Tower) are (all quad core):

  • i7-975, 3.33 GHz
  • i7-965, 3.2 GHz
  • i7-960, 3.2 GHz

Matching Xeon processors also work and are usually less expensive:

  • W3580, 3.33 GHz
  • W3570, 3.2 GHz
  • W3565 3.2 GHz

Note that neither 6 core i7-9xx processors nor 6 core Xeons work in the 435MT.  Hex core Gulftown i7-990X, i7-980X, i7-980 and i7-970 processors will not work since 435MT BIOS wasn't updated to support them.

See this discussion thread for more details.

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