[CentOS] OS does not see all my RAM
Bill Baird
Bill.Baird at phoenixmi.com
Mon Oct 3 16:13:20 UTC 2005
> -----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
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