No diagnostic beeps |
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jdk
Newbie Joined: 27 Jun 2022 Status: Offline Points: 65 |
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Posted: 27 Jun 2022 at 6:38am |
Having trouble with a B450M Pro4 that won't boot. No video and weird USB (keyboard/mouse) behaviour. Frustratingly I'm not getting any diagnostic beeps (I have a speaker connected to the spk pinouts). I had read that the default setting in the bios is for the beeps to be disabled. If so, how do I enable them without access to the bios? Or is this board just fully fried?
Have gone through the full list of diagnostic steps including a hard cmos reset and swapped most components. |
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Xaltar
Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 22508 |
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What are the specs (including PSU model)?
Is this a new issue on a previously working system or a new build? What (if anything) caused the issue? |
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jdk
Newbie Joined: 27 Jun 2022 Status: Offline Points: 65 |
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New build. PSU is known good. Tried multiple GPUs. CPU and ram could theoretically be bad but confused as to how they'd cause the symptoms seen here.
Base question though: why am I not getting any beep codes? Are they indeed turned off by default? (I get the boot beep being off but diagnostic beeps in case of a fault should really always be on). |
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miffril
Newbie Joined: 30 Jun 2022 Status: Offline Points: 50 |
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You PC restarts every 30 seconds or so?
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jdk
Newbie Joined: 27 Jun 2022 Status: Offline Points: 65 |
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Nope, never starts at all, and no apparent restart cycle. Looking like it may be an RMA. Still confused as to why no beep codes though.
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Xaltar
Moderator Group Joined: 16 May 2015 Location: Europe Status: Offline Points: 22508 |
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Generally no beep codes = bad. As far as I am aware the "disabled" setting in the
BIOS only disables the POST beep. Errors should still cause a beep code. |
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jdk
Newbie Joined: 27 Jun 2022 Status: Offline Points: 65 |
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Thanks for that Xaltar. Definitely confirms there's something wrong with the board itself then.
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