Take the 2-minute tour ×  I have a Nook Color with Cyanogenmod
7.2 (on mSD), and Nook Color is supposed to be 512MB of RAM
(says so on product's page).  When I open Menu (on bottom bar,
while on desktop) > Manage Applications > Running, it says on
the bottom left 95MB used, and on the bottom right it says 174MB
free. These are about 270MB, does that mean my RAM is corrupted?
Why is it not utilizing all 512MB of RAM?  share|improve this
question This question (or derivations of it) continues to come
up on this site, so I am going to genericize this just a little
bit and use it as a "cannonical question" regarding RAM
available vs. total physical RAM. –  eldarerathis May 26 '12 at
14:47 add comment  1 Answer  Although your device may have 512
MB of RAM in it, the settings almost always report the RAM that
is available to user processes, not all of the physical RAM.
This means that it won't report any memory that is being used
by:    • Android's system-level processes   • Your GPU, which
often uses shared memory