I get BSOD error all the time (error codes 0x19,0xd1,0xea,0x7e) but hte most common is the 0x19 (BAD_POOL_HEADER). My sound will change in volume without me changing any controls (goes from low to really loud for no reason). I get electronic echos for no reason, and my left speaker keeps cutting out. While surfing the internet, my screen will turn off then on during page loads and page scrolling. My monitor also turns to standby and i can't bring it back on. Is this a motherboard problem or something else (RAM, power supply, etc...) any help would be great.