[ltp] exceeding maximum memory?

[Alex Deucher]

On 11/8/05, Michael Selway <mas@ssl.co.uk> wrote:
> Hi, I've been happily running linux on a T21 for over 4 years and
> it's all just fine, except I need more memory - everything is
> getting bigger, and I find my regular load of emacs, X, firefox,
> openoffice, and the occasional vmware, leaves me too often in
> paging frenzy hell with the disc light ON and processes crawling
> along.
>
> Both the (excellent) crucial.com memory guide and the ibm.com
> specs say this machine can take a maximum of 2 x 256 Mb, which is
> what I have.
>
> However, if I run dmidecode, I see this clause...
>
>         Memory Controller Information
>                 Error Detecting Method: None
>                 Error Correcting Capabilities:
>                         None
>                 Supported Interleave: One-way Interleave
>                 Current Interleave: One-way Interleave
>                 Maximum Memory Module Size: 512 MB
>                 Maximum Total Memory Size: 1024 MB
>                 Supported Speeds:
>                         Other
>                 Supported Memory Types:
>                         DIMM
>                         SDRAM
>                 Memory Module Voltage: 3.3 V
>                 Associated Memory Slots: 2
>                         0x0008
>                         0x0009
>                 Enabled Error Correcting Capabilities:
>                         None
>
> Hmmm - looks like I might be able to put 2 x 512 Mb in there.
> Does anyone know whether that might work?
>

it might work _IF_ you can find 512 MB SO-DIMM that have the right
size chips on them.  the T20-22 were rather particular about the size
and speed of the actual chips on the DIMM.  The higher density chips
don't work.

Alex

> Michael.