Thinkpads Forum

Hi all,

I have a Thinkpad T60 2007-66U which according to the Lenovo specs is supposed to have an Radeon X1400 with 128 MB video RAM but my Windows XP Pro's Display Properties's "Adapter Information" box its showing it to be 512 MB RAM.

I have noticed that I am seeing a lot of memory swap going on whenever I launch a memory/CPU intensive application. Is the extra memory thats showing up as the video memory being coming out of the main memory? This is surely very disconcerting to say the least.

Does Radeon X1400 use a shared memory architecture?

If so, is there any way I can stop that from happening?

Thanks in advance.

Hi

Search the Forum or Web for HyperMemory.

cu

Update your drivers. I remember reading that the wrong display in windows was due to some bug - the X1400 does not take any memory your RAM, so do not worry.

The x1400 has 128mb on board memory and will use hypermemory reporting 512mb total memory. I don't believe you can disable it nor should you need to.
http://ati.amd.com/technology/hypermemory.html

Thank you for all the replies.

It's too bad that out of 1GB main memory 384MB is wasted since I don't play any games on the notebook.

Is there any way to reset it at least to recover the tied up memory?

syedj wrote:Thank you for all the replies.

It's too bad that out of 1GB main memory 384MB is wasted since I don't play any games on the notebook.

Is there any way to reset it at least to recover the tied up memory?

The video card will only use that 384MB if it needs it when playing an intensive game or running a heavy graphics application. It does not use that memory until absolutely necessary and it's likely you won't run into that problem. Hypermemory cannot be disabled. Don't worry about it.

Hi BadAndy,

I understand what you are saying about it not being used until and unless needed by the graphics card but the memory usage of Windows XP is pretty high even without any applications launched. I am seeing over 550MB used and nothing shows up in the Task Manager as eating up the RAM either even after a fresh boot on a freshly restored Windows XP installation. So the shared video RAM was the only place I could imagine the vanished main RAM being used up.

Thanks.