Hi..Im buy MSI Radeon HD 7950 Twin Frozr V2/OC - 3 GB GDDR5 and instal waterblock...card has reference board 7970.Vhen Im start crysis3 Im hear noice on grafic card...is this normal noice for graphics cards...or is the fault .Because its my 1 card and im not sure about this noice.... i can return card within 15 days.