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Go to SolutionSound problems with Optiplex 755
So I just got this computer from my mom. She sent it to me and said if I could fix it, I could keep it. I fixed it (I just had to reseat the ram) but now the sound is . All the windows sounds work fine (Like the notification sounds and the keyboard clicks in Opera that I haven't turned off yet) but if I watch a YouTube video or something, it sounds all blown out and almost like the background sound is in one ear and louder than the main sound in the other ear. I don't know what caused this. I am using Windows 10 and the Apple earbuds that came with iPhones back when they had a normal headphone jack.
Try adding external speakers if you have not already done that. You should have said which of the 4 models of the 755 you have. Manual here-- https://downloads.dell.com/manuals/all-products/esuprt_desktop/esuprt_optiplex_desktop/optiplex-755_user%27s%20guide_en-us.pdf
elpro999dell
367 Posts
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0
Posted October 26th, 2020 14:00
- You should check to see if your earphones are plugged in all the way.
- Look for damage to the headphone plug and the jack on the pc
- Try the rear jack on the pc (there is two of them use the green one)
speedstep
11 Legend
•
46969 Posts
1935
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Posted November 1st, 2020 23:00
Sound doesnt work correctly without the OEM Driver and internal speaker is not really a sound system.
https://www.dell.com/support/home/en-us/product-support/product/optiplex-755/drivers
Analog devices windows driver AD198x
https://dl.dell.com/audio/R164900.exe