Old proliant memory detection
Michael W. Oliver
michael at gargantuan.com
Wed Sep 3 09:46:58 PDT 2003
+--- On Wednesday, September 03, 2003 11:31,
| Vince Hoffman proclaimed:
| Hi all,
| I'm running 4.8-RELEASE on an ancient Dual P.Pro proliant, and its
| not correctly detecting how much RAM i have, is there a way to tell
| FreeBSD the correct amount? I'm sure i saw something on the list about
| this a while back but my googling hasnt come up with anything. :(
Yeah, I have a couple old Proliant 5000R's, and this was always a problem
for me. I added this statement to my kernel config to make it detect and
use all of the memory:
In this case, the 128 represents the amount of RAM you have in MB. From
# MAXMEM specifies the amount of RAM on the machine; if this is not
# specified, FreeBSD will first read the amount of memory from the CMOS
# RAM, so the amount of memory will initially be limited to 64MB or 16MB
# depending on the BIOS. If the BIOS reports 64MB, a memory probe will
# then attempt to detect the installed amount of RAM. If this probe
# fails to detect >64MB RAM you will have to use the MAXMEM option.
# The amount is in kilobytes, so for a machine with 128MB of RAM, it would
# be 131072 (128 * 1024).
perl -e 'print unpack("u","88V]N=&%C=\"!I;F9O(&EN(&AE861E<G,*");'
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