Question about my power brick

My power brick is on its 4th xbox 360 and its about 2 years old, and I think it may be time to replace it since I can hear it in my bedroom 30 feet away if its quiet and the door is open... I don't know if it normally that loud or if its suppose to be quieter or not. I was thinking about buying a new power brick since It also makes a weird noise for about 60 seconds when I turn it on after its been off for about 6 or more hours. What do you think, should I get a new one? It works fine.... but its a little noisy. I don't notice it while playing games unless I think about it.Question about my power brick
I dont think the power brick is suppose to make a noiseQuestion about my power brick
I'd be concerned if my power brick was making ANY noise.The only noise you should have is from the 360 itself.
Really? Dang, Maybe I should replace it. Its just the fans that make noise as far as I can tell.