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You are here: MacNN Forums > Hardware - Troubleshooting and Discussion > Mac Desktops > Being driven mad by the famous 'chirp'

Being driven mad by the famous 'chirp'
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trevorM
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Join Date: Jan 2005
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Mar 23, 2006, 03:00 AM
 
Hello All.

I have been using a Dual G5 for over a year now and have always noticed a bit of a chirping sound emanating from my computer. However as of late I have noticed it has become louder or more frequent - well at least I think it has anyhow.

Is the addition of a firewire device likely to cause an increase? The reason why I ask this is because I just got for my birthday a eyeTV 200 and I think this device may be the cause.

If anyone has suggestions or comments it would be greatly appreciated.

Thanks.
T!
( Last edited by trevorM; Mar 23, 2006 at 03:03 AM. Reason: Clicked the enter button before typing text!)
Apple Powermac G5: Dual 1.85GHz | 80Gb System | 3Gb Ram | GeForce 6800 Ultra DDL | BT | Airport | Apple 30" Cinema HD Display Apple Powerbook AL G4: 12" | 1.5Ghz | 60b System | 1.25Gb Ram | Airport | BT Other: Airport Express | Airport Extreme | TiG4 PB 800Mhz | 20" iMac G5 w/ built in iSight | Swivel Screen iMac G4 800Mhz | iPod Mini | iPod Nano | Maxtor One Touch 250GB | Sony Ericsson T630
     
macmad
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Mar 23, 2006, 03:06 AM
 
Buy a new graphics card, then you won't be able to hear the chirping above the fan noise
     
trevorM  (op)
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Mar 23, 2006, 03:08 AM
 
haha! The graphics card is already loud enough as it is!!!!!
Apple Powermac G5: Dual 1.85GHz | 80Gb System | 3Gb Ram | GeForce 6800 Ultra DDL | BT | Airport | Apple 30" Cinema HD Display Apple Powerbook AL G4: 12" | 1.5Ghz | 60b System | 1.25Gb Ram | Airport | BT Other: Airport Express | Airport Extreme | TiG4 PB 800Mhz | 20" iMac G5 w/ built in iSight | Swivel Screen iMac G4 800Mhz | iPod Mini | iPod Nano | Maxtor One Touch 250GB | Sony Ericsson T630
     
Tuoder
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Mar 23, 2006, 03:24 AM
 
What causes the chirp? I am unfamiliar with this problem.
     
macmad
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Mar 23, 2006, 05:19 AM
 
Apparently, its a power-supply problem. Variations in load current may cause some PSU components to hum slightly. Pulsing load current peaks and some PSU will components will make a chirping sound. A way to help reduce the chirping is to reduce the load variations, caused by the processors switching gear. Try settings in the Energy Saver panel, or by installing CHUD and dissabling the processor Nap feature. If the chirping is really bad, you may want to find a new PSU.
     
   
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