Thinkpads Forum

Hi all.
In my T60 i've installed long time ago 4gb ram.
Of course, my Debian see only 3GB.

I read this post:
http://forum.thinkpads.com/viewtopic.php?f=29&t=49703
many times, but hope is still alive:
Is there a solution, like kernel recompile with High memory support at 64Gb, to use all my physical ram?

Thanks!
Regards
M

Put shortly, NO. It is a hardware limitation that cannot by bypassed by any software.

The chipset of the T60 limits to 3 G of RAM. If you need to get 4 or 8 G of RAM, you have to upgrade to T61.

Thanks for the notices.
I know that but i hope that..

Regards
M

pictux wrote:Thanks for the notices.
I know that but i hope that..

Regards
M

I can understand you very well, in the beginning we were all hoping just the same, but after a while one gets used to the idea and gives up

Marin

Hello.

Are you currently running the "bigmem" Debian kernel? Hopefully this post should shed some light on the topic.

http://knowledgelayer.softlayer.com/que ... all+my+ram!

I've already tried that, without success...
Isn't it an HW limit?

Regards
M

Yes, it's an HW limitation, due to:
Intel Corporation Mobile 945GM/PM/GMS

The 945 chipset can adress 4GB maximum. 4GB - IO-Space - gfx = 3GB
usable RAM.

as descibed here:
http://www.thinkwiki.org/wiki/Category: ... cellaneous
and discussed also here:
http://www.nabble.com/Only-3-out-of-4-G ... 54199.html

So, my new question is:
it's possible to replace this component?
Or i need to change the motherboard?
Or simply change laptop ?

Thanks!

You can change the mobo if you find a newer one that would fit. Of course, the easiest solution would be to buy something based on Santa-Rosa or later.