I'm using DataRam's free ramdisk for my needs. Here's how I configged it: I created a two gig ram disk in Fat32 format, used disk management to assign it drive letter Z:, created a TEMP and CACHE folder on it, and then used the DataRam control panel to save my ramdisk image to the C:\ drive (the only contents should be your two folders and nothing else.) Then I went out to the C:\ drive, right-clicked the RAMDISK.IMG file, and flipped the compression bit - my 2Gb raw image file smashed down into ~16Kb.

Then I configured their control panel to load that image on every boot, but NOT to save it. This way, it will read that 16kb from disk, blow it up into your ramdisk with the folders already created, and keep the letter you assigned to it. I configured my paging file to use the Z: drive for 128Mb min / 1536Mb max; it automatically recreates itself on every boot. I repointed the system global and my user local TEMP and TMP environment variables to Z:\TEMP folder, and pointed IE and Chrome to use Z:\CACHE as their cache.

Here's how you config Chrome to redirect cache and manage size (took a bit of digging for me too...)

Open up RegEdit, search for Chrome.exe". Notice that I used a single double-quote at the end, but NOT at the beginning -- there is a method to my madness This should limit your search hits for cases where Chrome is getting called, you'll find a big pile of them. The dead giveaway should be that most of them will have a --"%1" argument (one will not -- that will be your start menu link entry.)

Replace the --"%1" with this: --disk-cache-size=134217728 --media-cache-size=134217728 --disk-cache-dir=Z:\CACHE --media-cache-dir=Z:\CACHE --"%1"

For that one argument that doesn't have the --"%1" in it, just strip that piece. You can adjust those numbers and path locations to your liking, but that's what my laptop is using: 128mb max cache size for data, 128mb max cache size for media, and both are located in my Z:\CACHE folder