Alas, I doubt I'll have much time in Bangers this go around. Essentially I'll be landing on 3 May and taking a rental car up to NK. Have some legal matter to attend to in Korat. Then off to CM and back to NK and back to BKK on 12 May. Later in the year I'll be returning two more times (some underachiever, huh?) so maybe I can take you up on the free beer then
Is this RAM for a desktop or the laptop? I have some of both and can leave it with someone in CM.
As far as L2 cache is concerned it is not upgradeable now. Some PCs did have the ability to add cache in the past (and many older Mac models had cache slots with upgradeable cache cards) but nowadays the cache is part of the CPU and cannot be changed without changing the CPU.
To put it into simple terms: L2 cache allows the CPU to retrieve recently executed code faster than pulling it out of RAM. This speeds up certain applications (such as Photoshop) and having more can make the applications perform better...up to a point. The original P4s only had 256k of L2 cache and this was one reason why they performed worse (in many instances) than the PIII that they replaced.