Any way to tell what the RAM configuration is?

[patrick]

I'm wondering if there's any way in FreeBSD (4.x on i386) to tell what
the RAM configuration in the system is? ie. Can it show me if I have
four 256MB modules versus two 512MB's? Obviously it would be possible
to just open up the computer and see for my self, I'm hoping I can
save myself a trip and wrecking an uptime of 670 days. :)

Thanks,

Patrick