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Mini fridge causing computer to play "Device Disconnect" sound


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#1 Elliot B.

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Posted 21 July 2013 - 16:17

I bought a Husky Stella Artois mini fridge (48 liters I think) and whenever it clicks off (when it reaches the desired temperature), my computer makes the "Device Disconnect" sound.

 

When it was connected to the same "power strip" as my PC, my second and third monitors would stop working temporarily.

 

It's on the other side of the room and it's got it own dedicated socket in the wall. Now I only get the "Device Disconnect" sound. Nothing seems to have stopped working on my PC that I can tell.

 

This happens every time the fridge clicks off, which is roughly twice an hour.

 

Any ideas?




#2 Ambroos

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Posted 21 July 2013 - 16:23

It's probably still some external device losing power. Maybe your printer or something similar?

 

(Also, I am still surprised when I see how popular Stella Artois is, I pass by the brewery every day!)



#3 OP Elliot B.

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Posted 21 July 2013 - 16:24

It's probably still some external device losing power. Maybe your printer or something similar?

I only have 2x USB HDDs connected, and they still appear to work fine.

 

Does Windows keep a log of what's been disconnected? *researches*



#4 articuno1au

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Posted 21 July 2013 - 16:24

Ambroos hit the nail on the head.

Check your event viewer to see what turns on/off.



#5 n_K

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Posted 21 July 2013 - 16:26

Humm something sounds a bit flaky with your electronics, if you have a large sudden start of stop of power then it can cause problems with devices but it's just a mini fridge.

Check event viewer.



#6 OP Elliot B.

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Posted 21 July 2013 - 16:27

Which part am I looking for? In Windows Logs > System, the latest entry is over an hour ago and is unrelated.

 

eb_evntvwr-devdisc1.png



#7 Ambroos

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Posted 21 July 2013 - 17:20

Try http://www.nirsoft.n.../usblogview.zip - just open it and leave it opened untill you hear the sound again. If it's USB it'll be logged in there!

 

For other devices I'm not actually sure. Logging isn't enabled by default AFAIK but you can usually enable things like that in the group policy editor.



#8 Aheer.R.S.

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Posted 21 July 2013 - 18:56

Although I believe your question has been answered, I thought I might just add it could just be a usb device losing power for a split second as the fridge powers on, although nothing actually lost power to the pc your usb's might be sensitive to notice the change in current and recognises a device disconnected (possible false positive, so to speak)



#9 vcfan

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Posted 21 July 2013 - 19:12

few things

 

1. could be RF leakge which creates interference from the compressor motor,and this is messing up the signals and making your usb ports believe something is connecting/disconnecting.

 

2. since this is happening when the compressor motor is turning off, it could be reverse voltage or back EMF that is getting into the mains power and causing malfunctions to other electronic devices. this could mean a defect in the power supply,because i doubt there isnt a protection diode in there.

 

3. ground loop

 

try something. leave your fridge in the same room,but connect it with an extension cable to a different power outlet that not on the same circuit. maybe away in a further room. see if it still happens. this way you can rule out or not if its group loop,or mains interference.



#10 moeburn

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Posted 21 July 2013 - 20:09

do your lights flicker when this happens?  (only incandescent lights; fluorescent bulbs will not flicker due to voltage drop) - Mine do whenever the AC/dryer/fridge-relay turns on.  But my computer's power supply is good enough to not be affected by these split-second brownouts. 

 

Sounds to me like you've got the worst possible combination: A PSU that can't handle large dips in voltage, and a very inefficient fridge transformer that CAUSES large dips in voltage.  Your entire PC may not turn off because of capacitors and such, but your USB devices are powered directly by the +5v line, and if that 5v dips low enough, its the equivalent of unplugging the device (to Windows).  



#11 Steven P.

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Posted 21 July 2013 - 20:16

I bought a Husky Stella Artois mini fridge (48 liters I think) and whenever it clicks off (when it reaches the desired temperature), my computer makes the "Device Disconnect" sound.

Sorry but this made me LOL :p

 

Anyway it might help if your fridge is in the power strip either at the very end, or at the beginning, did you try that?



#12 +imachip

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Posted 21 July 2013 - 20:25

It's well known that that the universal beer fridge driver causes this sound.  Follow the flowcart:

 

1 disconnect sound: You have too many beers in your fridge.  Take out at least one beer and enjoy.  If you hear this sound again, do this again until it stops.



#13 moeburn

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Posted 21 July 2013 - 21:08

It's well known that that the universal beer fridge driver causes this sound.  Follow the flowcart:

 

1 disconnect sound: You have too many beers in your fridge.  Take out at least one beer and enjoy.  If you hear this sound again, do this again until it stops.

 

lol!  have you tried turning your drunkenness on and off again?



#14 uMadRabbit

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Posted 21 July 2013 - 21:12

Guessing you didn't safely remove the beer from the fridge did you? You know the warning is there for a reason on your PC :rofl:



#15 Hum

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Posted 21 July 2013 - 21:15

Fridge is haunted :|