Upgrading laptop RAM

[Flumple]

[FONT=Calibri]I'm considering upgrading the RAM on my laptop, but I'd like some advice before I buy.[/FONT]
[FONT=Calibri] [/FONT]
[FONT=Calibri]My laptop is an Acer 5920, running Windows 7 32-bit. The specs are listed here http://www.miniputer.com/Acer/Aspire_5920.html . My model is running an Intel Core 2 Duo T7300 processor) with 2GB of RAM installed.[/FONT]
[FONT=Calibri] [/FONT]
[FONT=Calibri]I'm considering upgrading to 4GB, using 2x2GB SODIMM, DDR2 sticks as recommended by the Crucial website (http://www.crucial.com/uk/upgrade/Acer-memory/Aspire+Notebooks/Aspire+5920-upgrades.html).[/FONT]
[FONT=Calibri] [/FONT]
[FONT=Calibri]I understand that my Intel GM965 Express will only use RAM at 667MHz, so there's no need to buy 800MHz. Is this correct?[/FONT]
[FONT=Calibri] [/FONT]
[FONT=Calibri]I've been quite confused by online discussions regarding how much RAM Windows 7 32-bit can recognise - will the full 4GB be utilised? If not, how much can my OS utilise, and will it make noticeable difference to the 2GB installed?[/FONT]

 

[Jad Chaar]

800MHz RAM is not supported, so dont waste your money. 667MHz is what Crucial recommended. Go for that.

 

[Flumple]

Right, what about the issue of Windows recognising all/part of the RAM?

 

[Jad Chaar]

If you have Windows 7 32bit, Windows can only use 3.3-3.6GB of that. If you have a 64bit OS, then it can utilize more than 3.5 GB. It doesnt hurt to get your hands on a 64bit version. If you dont have the 64bit disk, you should be able to contact MS and explain to them why you need a 64bit version. They will give it to you for free since you already have the 32bit version.