Solved PC works fine, but no sound from motherboard speaker (POST)

December 3, 2019 at 20:06:04
Specs: Windows 10 Home, 8 GB
Hello all,

I have a custom built PC, Windows 10 Home, about 12 years old. I recently noticed that the on board speaker on the motherboard at some point stopped making a beep or double beep sound. The computer boots up and works fine, I am wondering though if I should be concerned about potential motherboard issues. Here some changes I have made - as stated - no idea when the boot-up sound started:

1. Installed a new SATA SSD
2. Freshly installed Windows 10 Home
3. Upgraded BIOS via WIN (not DOS) to the latest version (2010)
4. Attached a newer monitor via HDMI cable
5. Installed a PCIe x1 Wireless AC1200 Wifi Adapter

I have disconnected all external and internal USB devices, still no sound. I also used a working motherboard speaker to see if mine was blown, still no sound. RAM stats are fine. The next step would maybe be to remove the memory battery and reset the BIOS that way, maybe battery is failing and that is not producing the sound?

Should I be concerned? Maybe the new BIOS? Any idea why my POST sound should disappear?


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#1
December 3, 2019 at 21:48:54
I'd suspect a bios setting. Look through all the bios options and see if there's anything there about the onboard speaker. In the meantime post back the motherboard model number.

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#2
December 4, 2019 at 06:35:44
Hi there, thank you. Here the information:

Motherboard: ECS A780GM-A
BIOS Version Date: American Megatrends, 080014, 4/14/2010

I went into BIOS today. When I disable "Quick Power on Self Post" and restart I produce a single beep from the onboard speaker. When I then go back and enable Quick POST the sound is gone.


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#3
December 4, 2019 at 08:16:22
✔ Best Answer
Yeah, i agree with RE #1 probbably a beep-on-boot option which is set to off by default in the new bios version.

I wouldn't worry about it.

i5-6600K[delid]@4.828GHz Core/4.627 Cache@1.456v | 2x4GB Crucial-DDR4-2400MHzCL18@3018MHzCL12@1.465v | Sapphire Nitro+ SE RX 590 8GB@1660Mhz core@1.2v/2236MHz

message edited by hidde663


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#4
December 4, 2019 at 09:55:36
Thanks. It seems non-optional though in the new BIOS since I do not here it. Should there not be a possibility to enable it still? Unless it is by default turned to OFF and can only be enabled by disabling the Quick POST option.

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#5
December 4, 2019 at 13:07:14
do you still have the manual? perhaps there is some more info there.

also i found this (ctrl+f for beep):
https://forums.tomshardware.com/thr...

i5-6600K[delid]@4.828GHz Core/4.627 Cache@1.456v | 2x4GB Crucial-DDR4-2400MHzCL18@3018MHzCL12@1.465v | Sapphire Nitro+ SE RX 590 8GB@1660Mhz core@1.2v/2236MHz


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#6
December 4, 2019 at 14:06:26
Yes, I still have the manual. I was not able to find much related information, only how the motherboard speaker should be mounted. Is there anything I should be looking for?

The good thing is that other than one of the cooling fans sometimes runs faster and then slower while the PC is on the PC works fine without any issues. BTW - I have encountered the boot problem described in the past as well (black screen with green lines), turned out to be bad RAM which I replaced.


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#7
December 4, 2019 at 14:40:55
I'm confused. When you disable 'quick power on self test' the speaker beeps. Can't you leave that setting disabled?

The bios upgrade may have changed the beeping feature of the speaker. Unless the bios upgrade was necessary you might consider reverting to the previous version. Or keep checking their support site for an even newer upgrade.


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#8
December 4, 2019 at 15:22:58
Yes, I can. I can do without the beep, just got concerned when I did not hear it anymore.

Maybe I am just worrying about nothing at this point.


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#9
December 4, 2019 at 19:50:47
RE BIOS - the version I am runnign right now is the latest from 2010. I doubt there will be a newer version for ECS A780GM-A.

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#10
December 4, 2019 at 20:42:22
Yeah I imagine they 'retired' that motherboard so no new updates. You might try the update again. They don't always work the first time. Or consider reverting to the older version unless the update was absolutely necessary.

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#11
December 4, 2019 at 20:45:21
It makes sense to me that there would be a "quiet boot"
option, and that the quiet boot would be combined with
the quick boot option.

-- Jeff, in Minneapolis


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#12
December 5, 2019 at 07:21:38
Thanks for all your input!

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