Hey guys, Im pretty new to the forums. In Fact I Just joined a Few Minutes ago. Ill Be Using this Forum, don't worry I wont just dump it after a problem is solved. Im Considered a Noob, but I do know Quite a lot about Computers. Here's My specs: -NZXT Lexa S Case( Maybe cooling issues?) -AMD Athlon II X4 630 @ 2.7Ghz. - Asus M4A87TD EVO Mobo -8Gigs of G.Skill Sniper DDR3 Ram -Zotac 9500 Gt 512mb Graphics Card -450w Power supply I believe. And Here's My Problem tho: I Bought a Custom Built computer from a Friend. I think i bought it in April. Anyways The first like 2-5 months its been running Strong, I did some light gaming. Then about Starting last month The computer would Freeze for a couple seconds. If left unattended The computer will go into sleep mode and When it does that The Case Light Blinks and when i try to wake it, nothing happens. I have to turn off power supply, turn back on then Start up the PC. My brother does do some Gaming( age of Mythology) for some long period of time ( Like 4 hours maybe ). I Was thinking its because the computer cant handle that much gaming and how he constantly plays. I Just Don't know what's Wrong.. Any help Would be Greatly Appreciated Thank You!