Mailinglist Archive: opensuse (2040 mails)
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Re: [opensuse] Kernel only see 3 of 4GB
- From: G T Smith <grahamsmith@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
- Date: Mon, 04 Jun 2007 11:05:54 +0100
- Message-id: <4663E402.8020602@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
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Frank Fiene wrote:
> On Montag, 4. Juni 2007, Jonathan Ervine wrote:
>> On Monday 04 June 2007 09:09:20 Frank Fiene wrote:
>>> I've installed additional 2GB of RAM into my Thinkpad Z61p. My
>>> kernel (latest SUSE-10.2-64bit) sees only 3GB of 4GB!
>>>
>>> Do i have to setup anything to see the whole memory?
>> I've seen this reported elsewhere (on a ThinkPad T60) and it was
>> basically a restriction in the BIOS that prevented the OS from seeing
>> all 4GB of RAM. You might want to look for a BIOS upgrade, or setting
>> - but I'd be prepared to be disappointed if I were you.
>
> A colleague of mine is running the same machine with Vista (32bit!!) and
> everything is fine! :-(
>
> Also 32bit Linux kernel should be fine with PAE, not?
>
> I'll have a look at the BIOS.
I have been trying to track the article down, but I came across
something recently that suggested that because some video cards mapped
memory somewhere in the 3Gb region, the effective memory became about
3Gb on these systems. This is apparently a problem both for linux and
windows OS machines.
The thrust of the article was that there was not a lot of point buying
more than 2Gb on a desktop/laptop PC. (Which may have something to do
with why I cannot find it any more...)
I came across the link below which outlines the issue to some extent..
> http://www.interact-sw.co.uk/iangblog/2005/08/05/is3gbenough
but this is not the original article :-(
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Hash: SHA1
Frank Fiene wrote:
> On Montag, 4. Juni 2007, Jonathan Ervine wrote:
>> On Monday 04 June 2007 09:09:20 Frank Fiene wrote:
>>> I've installed additional 2GB of RAM into my Thinkpad Z61p. My
>>> kernel (latest SUSE-10.2-64bit) sees only 3GB of 4GB!
>>>
>>> Do i have to setup anything to see the whole memory?
>> I've seen this reported elsewhere (on a ThinkPad T60) and it was
>> basically a restriction in the BIOS that prevented the OS from seeing
>> all 4GB of RAM. You might want to look for a BIOS upgrade, or setting
>> - but I'd be prepared to be disappointed if I were you.
>
> A colleague of mine is running the same machine with Vista (32bit!!) and
> everything is fine! :-(
>
> Also 32bit Linux kernel should be fine with PAE, not?
>
> I'll have a look at the BIOS.
I have been trying to track the article down, but I came across
something recently that suggested that because some video cards mapped
memory somewhere in the 3Gb region, the effective memory became about
3Gb on these systems. This is apparently a problem both for linux and
windows OS machines.
The thrust of the article was that there was not a lot of point buying
more than 2Gb on a desktop/laptop PC. (Which may have something to do
with why I cannot find it any more...)
I came across the link below which outlines the issue to some extent..
> http://www.interact-sw.co.uk/iangblog/2005/08/05/is3gbenough
but this is not the original article :-(
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.5 (GNU/Linux)
Comment: Using GnuPG with SUSE - http://enigmail.mozdev.org
iD8DBQFGY+QCasN0sSnLmgIRAhlaAKDV/OTtaMg18G+kWa7L8tG961HPGQCgqQFM
E55cGbXLCg8g9gRpWX708xg=
=DHoD
-----END PGP SIGNATURE-----
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