More RAM not recognized -

Bob Goodwin bobgoodwin at
Fri Jul 29 16:16:09 UTC 2011

On 29/07/11 11:39, Alan Cox wrote:
> On Fri, 29 Jul 2011 17:06:58 +0200
> Michael Schwendt<mschwendt at>  wrote:
>> Install the  kernel-PAE  package, then reboot to the PAE kernel and remove
>> the normal  kernel  package.
> I suspect a more fundamental problem. At least according to the Dell
> material the Dimension 4700 can only actually make fully use of 4GB
> (and in fact I imagine 3GB or 3.5GB in reality). It also needs a specific
> BIOS version to use 2Gb sticks, which presumably as it's detecting them
> and booting OK the BIOS is new enough.
> Alan

        Yes, I read that in the instructions before making the change
        but I thought perhaps it was due to a limitation of the original
        Windows XP provided with it which is long gone.

        The other computer now F-14 32 bit, shows cp0/cp1 as 64 bit
        under lshw
        but the basic computer as 32 bit. Is that because it's running
        32 or is that a limitation?

        [root at box9 bobg]# lshw -X
             description: Mini Tower Computer
             product: HP Compaq dc5700 Microtower (EW287AV)
             vendor: Hewlett-Packard
             serial: MXL732039C
             width: 32 bits
             capabilities: smbios-2.4 dmi-2.4 smp-1.4 smp
             configuration: boot=normal chassis=mini-tower cpus=2
        family=103C_53307F sku=EW287AV

        I know, I should try it, but someone more knowledgeable may know
        the answer?

        Maybe I know the answer already, this Dell shows the same 32 bit
        width and I know I had 64 bit Linux installed on it. Perhaps
        that has some other meaning and my ignorance is showing!


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