> -----Original Message----- > From: centos-bounces at centos.org > [mailto:centos-bounces at centos.org] On Behalf Of Robin Mordasiewicz > Sent: Monday, October 03, 2005 10:34 AM > To: CentOS mailing list > Subject: [CentOS] OS does not see all my RAM > > My BIOS shows all my RAM, but when I boot up linux it does > not see all the RAM > > I have two one GIG sticks of RAM, which show up in my bios, > but when typing free, I see that it only shows 256Megs. > > Is there a way to specify the amount of RAM if linux cannot > detect this, or how can I fix/tweak the OS to recognize the > amount of RAM > > my OS is centos-4-x86_64 on a DELL 1850 > > [root at smtcorav02 ~ ]# free > total used free shared > buffers cached > Mem: 251360 220136 31224 0 > 3932 64748 > -/+ buffers/cache: 151456 99904 > Swap: 524280 0 524280 > > > > Make sure "System Install Mode"(or something close to that) > is not enabled in the bios. If it is enabled, it will limit > the system to 256MB of ram for compatibility of some OS > installations. > > (this is a Dell specific thing) --Bill