I just thought I'd provide a follow-up on this in case someone else with a Dell Studio 540 or Intel G45 chipset tries to upgrade to 16GB memory. It works! I o

I just thought I'd provide a follow-up on this in case someone else with a Dell Studio 540 or Intel G45 chipset tries to upgrade to 16GB memory. It works! I ordered 4 x 4GB 2Rx8 PC2-6400U DDR2-800Mhz 240PIN UDIMM from a business on eBay called Memory Masters and it worked perfectly. No hackery required. My desktop from 2009 now runs with 16GB RAM and will be hopefully be in use for another 10 years :)