Intel G41 graphics are slow while memory runs in dual channel mode.

[Oliver Fromme]

Gary Jennejohn wrote:
 > I doubt this has anything to do with dual-channel memory.  More likely
 > is that you're trying to use 4GiB with i386, which can cause all kinds
 > of problems.
 > 
 > You have two options, as fas as I can tell
 > 1) run amd64, which can use the full 4GiB of memory
 > 2) set hm.physmem to 3G (or maybe a little more) in /boot/loader.conf

Are you sure that the second option has any effect?
I also run i386 on two different boxes that have 4 GB RAM,
and hw.physmem is set to 3.something automatically:

olli at hexagon:~> sysctl hw.physmem; uname -rsm
hw.physmem: 3474989056
FreeBSD 8.1-STABLE-20100908 i386

olli at atom:~> sysctl hw.physmem; uname -rsm
hw.physmem: 3740434432
FreeBSD 8.1-PRERELEASE-20100620 i386

I haven't touched hw.physmem on these machines myself.
Both boards have 2 x 2GB DIMMs.  The former is an ASUS
M4A88TD-V EVO/USB3, the latter is an ASRock A330GC.

Best regards
   Oliver

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