Hi there, so before any upgrade, it was ok, but now, when i upgraded gpu from geforce 210 to gtx 550 ti, cpu cooler spread strange sound when GAMING and few minutes pc shuts down...whats wrong ?
Can your psu even deliver anything close to its rating? If it a cheapy or a generic it may not be able to get anywhere near its advertised wattage where it counts. This is why I asked for more information.