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Intel PRO/Wireless 4965AGN Mini-PCI Express

This is a Mini-PCI Express WiFi Adapter


  • Chipset: Intel 4965AGN (Intel Docs.)
  • IEEE Standards: 802.11a, 802.11b, 802.11g (802.11n Some models Only)
  • PCI ID: 8086:4230
  • PCI ID: 8086:4229 (not actually seen on Thinkpad, yet)
  • PCI ID: 8086:4233 (not actually seen on Thinkpad, yet)
  • PCI ID: 8086:422D (not actually seen on Thinkpad, yet)

Mini-PCI WiFi Adapter
(wrong picture : 3945)

IBM Partnumbers

42T0865, 42T0867, 42T0869, 42T0871, 42T0905 : Intel PRO/Wireless 4965AGN (11n enabled)

42T0873, 42T0875, 42T0877, 42T0879, : Intel PRO/Wireless 4965AGN (11n enabled)

(From T61 Hardware maintenance Manual)

(Note from intel 3945 Might apply) : Only the IBM Parts will work, any other parts will give an 1802 error on Post because the sub-vendor PCI ID is different, see Problem with unauthorized MiniPCI network card for more details

Hardware switch

Some ThinkPads have a hardware switch that must be in the on position for the radio to work, regardless of driver state:

(ThinkPad R60 radio switch in the ON position)


  • Drivers available from Intel at [1]
  • Success with ndiswrapper (on dell 640m) [2]

Procedures for using this card under Linux using Intel wireless driver

ThinkPads this card may be found in