Greetings Tech Folks, I have since found out that one of my memory modules is bad. I am a gamer and built my system. Currently my system spec is as follows: Intel I 3570K (overclocked to 4.0 ghz, I used the default OC settings on Motherboard.) Asrok Z77 Extreme 6 motherboard. 8 gigs of Gskill Ripsaws DDR3, 2133 PC3 17000 (1 module died, now running on 4 gigs) Corsair 850 Gold PS EVGA Geforce GTX 670 w 2gigs onboard. Win 7 Pro 64 Seagate Barracuda 1 Terrabyte Drive 7200rpm OCZ3 60 gig SSD (This is used as a cache drive using Intels SRT technology, set to 'maximized') I play (raid) EQ2 (high to very high settings), Distant worlds (all expacs), Civ 5, The Secret World, X3, Gal Civ 2, Heroes III and IV, and I spend hours up every night correcting people on the internet. (ok not really.) I also occasionally watch HD movies I have downloaded via HDMI too my TV. I also use my computer for work. I typically have 3 spreadsheets open along with a browser with 1 or 2 tabs open, in addition to using Open office for documents. Oh and lets not forget using Pandora streaming my music while I am working.... Now I am going to replace my module and get back UP to 8 gigs of ram. My question is do we (REALLY) need more than 4 gigs for ram? Also in Win 7 is there (anything) I should set or reset to optimize its performance (such as the page file) or anything else? I used to set the page file when I had Win XP but since we have so much ram nowadays I thought we no longer have to bother. Any advice is most welcome!