Hello. I have an IMEDIA X2414 Packard Bell PC. The motherboard is Denver 10. I use a Sapphire ATI Radeon HD 4890 OC card. And my current power supply is a TRUST 570 Watt PSU. The problem I am experiencing at the moment since getting a new 24 inch samsung monitor is that my PC will instantly shut down at times when playing games like Crysis Warhead on higher resolutions such as 1920x1200. And I even played on open lid so heat is definitely not an issue since my current temperature on idle is about 49 degrees celcius and during game on Crysis Warhead its only about 70 degrees celcius. The problem is somewhere else. My Powersupply is only 570 Watt PSU where as the graphics card requires at least 500 Watt at minimum. A gamer on another forum told me that the PC is shutting down due to lack of electricity getting through all the components and that I required a higher Watt PSU and this problem will disappear with the PC shutting instantly down. My question is this, is it safe to get a 1000 Watt or higher Power Supply unit for my PC. I am concerned whether my motherboard Denver 10 will burn out or anything. What do you guys suggest and what PSU should I get? Thanks!