Originally Posted by TRWOV
You could lurk on eBay and look for a cheap DDR400 2GB CL2 kit. I recently got one for 33 + shipping. Even though you won't be able to use the full 4GB you'll get about .4 GB more. 1GB kit won't cost you much less and you could sell your 1GB kit later to pad the cost.
I'm not sure if the extra 0.5 GB of usable RAM would translate into any real-world performance improvement on W8. I thought the Corsair Platinum RAM was going to do the trick, however it was disingenuously marked as CL2 at DDR400 when it clearly isn't. I'm not sure I want to roll the dice on eBay again. I've found that dual-channel DDR400 kits are a little pricy (especially performance CL2).