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Computer making noise while off, but still plugged in?

post #1 of 12
Thread Starter 
So last night, I swear I was hearing my NAS (specs in rigbuilder) make noise while it was turned off. Every once and a while I'd hear hard drive clicking. You know the sound mechanical parts make the last second they lose power? They click a little bit and then the sound sort of fades away? The best way I can explain it is the sound your parts make when you force the computer off using the power switch on your case. No power or hard drive activity LEDs were on whenever I'd look back up at it.

Now, take with this a (very large) grain of salt, because I was trying to fall asleep. It's entirely possible that I actually HAD fallen asleep, and I was dreaming the whole thing. Not sure why I'd dream that in particular, but that's the best way I can describe my situation. Anyone know if this is even remotely possible?

EDIT: My NAS is temporarily housed in my room until I can get some cat5e cable running into my garage.
Edited by frizkie - 3/25/12 at 10:43pm
post #2 of 12
Was it just once or a few times?
I hear it all the time after I shut down my computer with my FreeAgent Ext. still plugged in, it then clicks and turns off, but I never hear it again.

Could just be the drives individually shutting down/sleeping.
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post #3 of 12
See if it happens again,you might have a ghost in the machine type poltergeist. Seriously,you might've been dreaming it.

Unplug it from now on.
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post #4 of 12
Thread Starter 
I'm not positive, but it was at least once or twice. The thing is, it must have been 10 minutes after I had turned the box off.

EDIT: Seriously, I'm going to be thinking about this as I go to sleep in a few minutes. It's creepy in a really sad sort of way.
post #5 of 12
Use a SMART tool to analyze the disk and see if it is having any trouble parking its heads. It is PROBABLY just your imagination, but it can't hurt to see if it's having trouble. I know a lot of motherboards default to not turning SMART on (for some reason I do not understand), so your BIOS may not be giving you any warning. I usually use passmark:
http://www.passmark.com/products/diskcheckup.htm

Good luck with your gremlins.
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post #6 of 12
Thread Starter 
Okay, I set my alarm 20 minutes early this morning, and just laid there for about 20-25. It's ACTUALLY HAPPENING, and I'm 100% convinced now. It happens every 5 minutes or so, so it did it 3 times in that 20 minute period. I've listened to it again, and it's more of a startup sound, and that makes more sense. The DVD burner I have in the NAS is an ASUS 24x DRW-24B1ST/BLK/B/AS OEM drive. The reviews note that it's REALLY loud on startup. It makes this whirring noise that increases in volume, literally like a small jet engine spinning up. Then there are some hard drive clicks, and a small beep, not from the motherboard's speaker, but somewhere else on the board, because it's significantly quieter. Not sure what else has an internal speaker on it, but it's a very clear, although quiet, beep.

I'm just sitting here laughing because I thought I had just gone loony, but I was fully awake and heard it at least 3 times in a short period.

Quote:
Originally Posted by avesdude View Post

Use a SMART tool to analyze the disk and see if it is having any trouble parking its heads. It is PROBABLY just your imagination, but it can't hurt to see if it's having trouble. I know a lot of motherboards default to not turning SMART on (for some reason I do not understand), so your BIOS may not be giving you any warning. I usually use passmark:
http://www.passmark.com/products/diskcheckup.htm
Good luck with your gremlins.

I just ran this utility, thanks for the suggestion. All the SMART readings are listed as "OK", so I don't think its the drives, but to be sure, I'm running a "Disk Self Test" on each of the drives.
Edited by frizkie - 3/26/12 at 7:28am
post #7 of 12
Is it possible that it's your monitor going in and out of sleep/power saving mode?
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post #8 of 12
Thread Starter 
Quote:
Originally Posted by avesdude View Post

Use a SMART tool to analyze the disk and see if it is having any trouble parking its heads. It is PROBABLY just your imagination, but it can't hurt to see if it's having trouble. I know a lot of motherboards default to not turning SMART on (for some reason I do not understand), so your BIOS may not be giving you any warning. I usually use passmark:
http://www.passmark.com/products/diskcheckup.htm
Good luck with your gremlins.
Quote:
Originally Posted by Maxxa View Post

Is it possible that it's your monitor going in and out of sleep/power saving mode?

Not a chance. It's a NAS, so it's headless right now. I've had these two monitors for at least 2-3 years.
post #9 of 12
Thread Starter 
Bump? I'm going to check it out tonight again.
post #10 of 12
Thread Starter 
Turned it off for the night. 2 minutes after that, getting in bed, and it buzzes. Whirring sound as usual, coming from the DVD drive. I turned around quickly enough to see a green light on the DVD drive. I'm going to play with it some more to see if I can isolate the component that's causing the problem.
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