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No sound output after a few changes.


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#1 Blackstar57

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Posted 02 November 2017 - 01:06 PM

Hello. I have a computer in my rec room that I use to watch movies on an old 53" rear projection HD Hitachi TV. Worked great until I made some changes. I moved everything to a Thermaltake XaserII case so I could add a couple more hard drives with media and a better power supply. The old power supply had a bad fan. New (to me) PS is an Enermax 460 watt. 

 

Computer basics are ASUS P5Q Pro ATX LGA775 motherboard, Intel Core 2 Duo E8400 Dual Core Processor , 4 gig dual channel ram.

 

The only difference in this set up besides the case and the Power supply is the power supply only has a 20 pin MB connector where the Mobo has a 24 pin connector. I checked online and found that the 20 pin will work in one end of the 24 pin slot... and it does. Problem is I have no sound. 

 

I have a stereo single to left/right dual jack plugged into the green audio plug, just as it was before. This goes to the left/right audio in on my Denon AVR-2809-CI receiver. This all worked before the change over so I'm wondering why I have no sound. Don't know if the 24 to 20 pin change has anything to do with it or not.

 

Any hints on where to look would be very much appreciated... 

 

Thanks, 

 

Glenn



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#2 mightywiz

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Posted 02 November 2017 - 01:21 PM

you might check but on almost all atx power supplies there is a 4 pin connector that attaches to the 20pin connector to make it a 24pin connector.

those 4 pins supply PCI-E so it could be possible that it's suppling power to the audio section of the board.



#3 Blackstar57

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Posted 02 November 2017 - 02:02 PM

you might check but on almost all atx power supplies there is a 4 pin connector that attaches to the 20pin connector to make it a 24pin connector.

those 4 pins supply PCI-E so it could be possible that it's suppling power to the audio section of the board.

 

The only other connector that looks close is the 4 pin ATX 12v connector. 



#4 Blackstar57

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Posted 07 November 2017 - 07:27 AM

Update.I reinstalled the original power supply with the 24 pin connector and still had no sound. I found an old front multi panel that has sound, usb ports, etc. and plugged it into the MOBO. Now I have sound. I read that there were known problems with these mobos. (I originally said this was a ASUS P5Q Pro ATX LGA775. My bad... it is an A8N32-SLI.






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