Is Any Intel Core 2 Core Duo Processors Compatible with FreeBSD?

Matthew Seaman m.seaman at
Tue Feb 18 07:32:04 UTC 2014

On 18/02/2014 07:18, Steve Booth wrote:
> I need to replace the CPU in my motherboard and I am planning to
> install FreeBSD. It appears in the FreeBSD Hardware Notes that Core
> Duo is not compatible. If none of those processors are compatible,
> would a Core 2 Extreme Quad Processor work? The motherboard is using
> an LGA 775 socket and is supposed to support both processors.

Ssshh! Don't say that so loud, or my main system might hear you and
decide it's incompatible with the Core 2 Duo processor it's been running
on for the last several years...

lucid-nonsense:~:% grep CPU: /var/run/dmesg.boot
CPU: Intel(R) Core(TM)2 Duo CPU     E8500  @ 3.16GHz (3166.37-MHz
K8-class CPU)

FreeBSD is compatible with x86 architecture processors put out by Intel
or Opteron since around the turn of the millenium, if not earlier.
Basically, don't worry about the CPU when spec'ing your system: you are
far more likely to have problems with motherboard chipsets and peripherals.



Dr Matthew J Seaman MA, D.Phil.

JID: matthew at

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