Just replaced the fan and got rid of the loud rattling noise, now it makes a soft ticking...

We cannot assist with self-repair.

i have the same problem with the chirping noises, the chirping was not there when i first got the xbox one but after a wyl now it starts making the noises. the fan seems to be loud off and on.

Is it like a squeaking noise from the fan area? My console makes it every so often and it can be quite loud. I've already had a replacement for the same reason but it still makes the noise.

Power outage can damage your console and the damage would be noticeable. If what you are experiencing is just loud noise that is the fan trying to get rid of the console's heat

Outside of the disc drive, there's 3 main sources of noise: -

The fan. I think that's what's causing that ticking sound in your case. It sounds like a fan that's slightly out of alignment.

The hard drive, as it's a regular mechanical HDD. Obviously that's perfectly normal as long as it's not making a loud clicking sound, as that's usually a sign of impending doom, lol.

Coil whine/capacitor squeal. Some electronic components can cause unwanted noise under certain circumstances. The noise can take various forms, but it's most commonly either a high pitched squeal (reasonably common with PC graphics cards) or a sound that's
a bit like an old fashioned printer or small ball bearings rattling around in a tin can. Coil whine can sometimes be mistaken for the noise of a hard drive working.

Here's a particularly clear example of a recording of an Xbox One that has coil whine issues: -

http://youtu.be/Cf_uQL1n3oE

MS have said that they will replace any consoles affected by coil whine. I have also had a console replaced because the fan made the same ticking sound as yours. Obviously, from a video it's hard to tell how loud it is, but if it bothers you I would swap
it out with the retailer. If that's not possible, contact Xbox Support and ask for an advanced exchange, although they may only offer a repair. As long as your console is connected to Xbox Live, all of your game saves are backed up to the cloud, so you won't
lose your progress in games if you do decide to go for a replacement/repair.

As for whether the issues will affect console performance, the answer is almost certainly no. The fan noise may get marginally worse over a lengthy period of time, but it may not. These things are hard to predict.

Hope that helps!