Hello. I am having some problem's: ---------------------------------------------------------------- CPU Intel® Core™ i5-2500K Motherboard ASUS P8Z68-V PRO/GEN3 Graphics Card Sapphire Radeon HD 5870 1GB Memory Kingston DDR3 HyperX 1600MHz 8GB 650w psu corsair Os: windows 7 ultimate 64 bit. ----------------------------------------------------------- One day after updating the bios i was going to bead and shutting down my rig and then the screen just go black? i can hear the hdd spin down but the fans are still going hard. This hapens every time i shut down the computer, restart works fine. What i have tryed: reinstalling, linux ubuntu works. but not windows. It seems like it hapens after installing sp1? Also tryed safe boot, another hdd. taking out the ram. gpu++ Can you guys help me? Kind regards.