Upgrading RAM further than 2gb

[runaway64]

Recently RAM modules of 2gb have dropped their price over here to a reasonable 100€;

I know from the specifications pages, that AR laptops, in theroy can only take up to 2gb of total ram.

Has anyone tried modules of 2gb? Maybe 2 modules of 2gb to get 4gb??

I would like to find out your personal experiences about this matter.

Thank your for your help and time.

[Suberashii]

I don't think that it will work.. I once tried it on my desktop that can handel 2gb of ram and it has 4 ram slots so i tried to put in 3gb of ram (in total) but at the startup it said that i am over the limit of ram.... So i don't think that is going to work... Anyway good luck with trying....

[Thalamus.]

Hi runaway64,

No the maximum RAM that you can put into your AR31 is 2GB...

[Dekesh]

if vista is installed wouldnt you be able to use more than 2GB? Does certain vista versions not support much more than 2GB RAM?

[rich912]

if vista is installed wouldnt you be able to use more than 2GB? Does certain vista versions not support much more than 2GB RAM?

It’s not really a question of whether the operating system can use the additional RAM, more to the point is, can your hardware recognise and reliably use more that the maximum recommended RAM…

[seb21__]

That's correct.

And most mainboards with support of more than 2GB Ram having some limitations.

Such as memory frequency and latency.


I have 4GB of Ram in my Desktop. The Ram works at 166MHz (DDR-333). The board does not boot with 200MHz (DDR-400). It did not change with todays DDR2 mainboards. (166MHz = DDR2-667(DDR3-1333), 200MHz = DDR2-800)

Then there is the latency. Most consumer boards supports a Command Rate of 1T. But only 2T with max. Ram configuration. (anyway 2T is best way to get a truly stable system)

At the end I'm losing ~1,9GB/s of memory bandwidth.
Well if you do photo/video editing, you can't have enough Ram. When Vista is running out of memory then it is using your harddisk as a memory replacement. And that is a much bigger perfomance loss than 2GB memory bandwidth less.

The harddisk in my Desktop PC has a avarage memory bandwidth of ~70-80MB/s "only"!