Today I tried a modified Mac OS X install disk (uphuck 1.3) just to see, out of curiosity, what hardware would be identified - and the OS X installer reported 4GB. So does the Bios, now that I looked at it.

I have not installed OS X, so it may be that part of the memory is allocated to the GPU (although the T60p has, unfortunately, the ATI FireGL 5250 and I think it has it's own memory). I'm running the 2.6.22.17-0.1-bigsmp kernel. Should I change the kernel to use the 4GB? Or switch to 64Bit?

Not that I really need the extra 1GB, it's just a little stupid to have this memory sitting there unused.... The -bigsmp kernel should support up to 64GB. However the memory must share the 32bit address space with other hardware like PCI devices. Usually 1GB is reserved for PCI addresses and the BIOS must map

Am Mittwoch, 26. März 2008 schrieb Thierry de Coulon: [...] that memory to addresses > 4GB to make it available to the OS. Check if the BIOS provides any options for mapping memory. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org

On Wed, Mar 26, 2008 at 9:19 PM, Thierry de Coulon <tcoulon@decoulon.ch> wrote:

Hello,

I recently bought a Thinkpad T60p that was sold with 3GB of RAM. The seller advertised "free 4GB upgrade", although I did not care much.

When the Laptop arrived, I kept WinXP on it (as I had paid the license...), and it said 3GB (I know it won't see more anyway with WIn 32bit).

I installed 10.3 in 32bit as well (I have no specific use for 64bit and various driver issues make me stick to 32bit for the moment). Linux (well, KDE) also showed 3GB, so I concluded that there had been no "free 4GB upgrade", period.

Today I tried a modified Mac OS X install disk (uphuck 1.3) just to see, out of curiosity, what hardware would be identified - and the OS X installer reported 4GB. So does the Bios, now that I looked at it.

I have not installed OS X, so it may be that part of the memory is allocated to the GPU (although the T60p has, unfortunately, the ATI FireGL 5250 and I think it has it's own memory). I'm running the 2.6.22.17-0.1-bigsmp kernel. Should I change the kernel to use the 4GB? Or switch to 64Bit?

Not that I really need the extra 1GB, it's just a little stupid to have this memory sitting there unused....

I've read several posts about this problem, but they were unclear, saying it could be the chipset, the kernel, etc... Is there a clear answer?

Thierry

I belive the T5500 is a 64 bit CPU. Try the 64 bit kernel, it can manage well into the terabytes of RAM. It has some known troubles, like Flash (only a very few sites), but it uses the possibilities of your processor way better It could be the chipset doesn't support the memory, but the default 32 bit kernel surely doesn't support it. The PAE kernel and the bigsmp kernel are just fixes for the memory problems, and only meant for 32 bit processors. It will work fine on a 64 bit processor, but i't kind of sad not to use the full potential of your system. Neil -- There are two kinds of people: 1. People who start their arrays with 1. 1. People who start their arrays with 0. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org