My case noise has been weird.

chrissss · 8 Dec 2007 at 23:38

G day,

I had my Antec900 for a while now, and recenly I bought a new harddrive. once my harddrive was installed, my case made a lot more noise. I assumed becase the 2nd harddrive blocked the airflow, making more noise.

now, a few minutes ago my case is as silent as it used to be, but sometimes it makes more noise :confused:

the noise is NOT my cpu or gpu, because I control their fan speeds, and they don't make noise. The Antec900 fans are the noise makers.

Anyways, why could this be? all fan speeds are on low, and now, while typing this every minute the fans make more noise for a few seconds, and then go down again. I checked, and I dont see anything touching the fans in any way, all fans in my pc are still working.

EDIT: it keeps fluctuating :mad:

Its really annoying. I want it to be quiet, but the fluctuating can't be a good sign. I know as long as my cpu and gpu fans are working I shouldnt really worry, but still.

also I keep an eye on my temps using speedfan and rivatuner.

Could it be a shortcut in the fan speed regulators for my case?

chrissss · 9 Dec 2007 at 11:31

Well, the fans arent lose.

The problem started ever since I got my new harddrive. Maybe the power to the harddrive somehow... nm this sounds like science fiction.

Well pc has been off all night, and now its the same as last night. I don't mind too much, because now its silent ish again. still I wanna know why its happening.

chrissss · 9 Dec 2007 at 19:10

its definately fan noise.

Could it be my psu? so that the fans dont get enough power, or too much power perhaps?

chrissss · 9 Dec 2007 at 21:50

thanks, but I think I didnt explain it well.

Day 1 -100 : low fan noise.
day 101: installed harddrive : lots of fan noise
day 102-130: lots of fan noise
day 131: low noise again, with ocasionally the fans making a bit of noise, and then less noise again ( per minute, 1-3 seconds of loud fan noise)

chrissss · 10 Dec 2007 at 01:07

Reality|Bites said:
Sounds like a power fluctuation from your fan controller

exactly.

How can I solve this?

chrissss · 10 Dec 2007 at 16:42

ok thanks. well so far its still silent, with the occasional noise, but its still better than the noise before. So I am kinda happy.

The main thing I am (was) worried about, is that something could short circuit, and damage my mobo.