Question newly build PC doesnt make POST beep

Aug 10, 2020
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Hello everyone. I'm in the process of building a PC and need some help.

I had all the parts hooked up and ready, but when I press the power button, only the fans and lights turn on. There is no POST beep sound of any kind. And nothing displays on my monitor.

I disconnected both the RAM and graphics card and tried it again. Same problem. No beep but fans and lights come on.

I don't think it's a motherboard problem because I can see one of the lights come on when I plug in the power supply (but don't turn on the PC).

I doubled checked that the CPU is in the right way. The included CPU cooler has thermal paste on the bottom, but I added some small blobs just to be sure. One other thing I tried was to take out the cmos battery and hold in the power button to try and discharge static electricity. Still nothing.

So here I am, stumped. Does anybody know what I should try next? Thanks in advance.

This is an Intel i7cpu with Asus motherboard
 

R_1

Glorious
Ambassador
Welcome to the forums :D

did you attach a speaker as described in step 17 here?

unless you connect a speaker you will get no beep. the speakers from the soundcard will not work until the OS loads.

the checklist usually handles most little niggles, it if does not post your complete specs back here and the results of your troubleshooting with the list.
 
Aug 10, 2020
4
0
10
0
Welcome to the forums :D

did you attach a speaker as described in step 17 here?

unless you connect a speaker you will get no beep. the speakers from the soundcard will not work until the OS loads.

the checklist usually handles most little niggles, it if does not post your complete specs back here and the results of your troubleshooting with the list.

Thanks for the reply mate.

I checked the motherboard box but no speaker was provided. I'll buy one now.

Also there is a cable coming from my case with the label "HD Audio" will this provide motherboard sounds? I'm trying to find a spot to plug it in now
 

R_1

Glorious
Ambassador
no the HD audio cable is meant to connect the front case audio jacks to the sound chip on the motherboard.

you can cobble together a speaker for testing if needs be
canned diagnostic speaker rant: speaker making 101
The diagnostic speaker is the motherboards main diagnostic feedback device.
the motherboard may be telling you where the problem is.
my speakers have this plug
http://images.crutchfieldonline.com/graphics/infolib/homelib/hSpeakerSpringClip.jpg
I use lamp wire but any stranded wire will do. literally any stranded wires. strip one end like so
http://www.antiquelampco.com/Shades/CordColors.jpg
attach the stripped end into the speaker spring clips on the speaker.
the other end of the wire should be trimmed like so the semi strip, the blue one.
https://ampsic.com/wp-content/uploads/2018/07/Full-strip-and-semi-strip-300x300.jpg
by doing a semi strip the wire case is now the socket.
plug one wire to the first pin, and the second onto the fourth pin.
power on the system and listen for beeps
end canned rant

a quick word on grounding
Canned Grounding Rant-
shut down system and remove side panel. with the power cable plugged into the PSU touch a bare unpainted metal area of the case. (my favorite spot is an unpainted screw securing the PSU) once you have grounded yourself you can unplug the computers power cable from the PSU and can touch the system.
if you move your feet, or shuffle in your chair, plug in the cord, reground yourself and unplug again.
end canned rant-
 
Aug 10, 2020
4
0
10
0
no the HD audio cable is meant to connect the front case audio jacks to the sound chip on the motherboard.

you can cobble together a speaker for testing if needs be
canned diagnostic speaker rant: speaker making 101
The diagnostic speaker is the motherboards main diagnostic feedback device.
the motherboard may be telling you where the problem is.
my speakers have this plug
http://images.crutchfieldonline.com/graphics/infolib/homelib/hSpeakerSpringClip.jpg
I use lamp wire but any stranded wire will do. literally any stranded wires. strip one end like so
http://www.antiquelampco.com/Shades/CordColors.jpg
attach the stripped end into the speaker spring clips on the speaker.
the other end of the wire should be trimmed like so the semi strip, the blue one.
https://ampsic.com/wp-content/uploads/2018/07/Full-strip-and-semi-strip-300x300.jpg
by doing a semi strip the wire case is now the socket.
plug one wire to the first pin, and the second onto the fourth pin.
power on the system and listen for beeps
end canned rant

a quick word on grounding
Canned Grounding Rant-
shut down system and remove side panel. with the power cable plugged into the PSU touch a bare unpainted metal area of the case. (my favorite spot is an unpainted screw securing the PSU) once you have grounded yourself you can unplug the computers power cable from the PSU and can touch the system.
if you move your feet, or shuffle in your chair, plug in the cord, reground yourself and unplug again.
end canned rant-
thanks a lot. I'll give it a try and report back. Thanks again for your quick reply.
 
Aug 10, 2020
4
0
10
0
no the HD audio cable is meant to connect the front case audio jacks to the sound chip on the motherboard.

you can cobble together a speaker for testing if needs be
canned diagnostic speaker rant: speaker making 101
The diagnostic speaker is the motherboards main diagnostic feedback device.
the motherboard may be telling you where the problem is.
my speakers have this plug
http://images.crutchfieldonline.com/graphics/infolib/homelib/hSpeakerSpringClip.jpg
I use lamp wire but any stranded wire will do. literally any stranded wires. strip one end like so
http://www.antiquelampco.com/Shades/CordColors.jpg
attach the stripped end into the speaker spring clips on the speaker.
the other end of the wire should be trimmed like so the semi strip, the blue one.
https://ampsic.com/wp-content/uploads/2018/07/Full-strip-and-semi-strip-300x300.jpg
by doing a semi strip the wire case is now the socket.
plug one wire to the first pin, and the second onto the fourth pin.
power on the system and listen for beeps
end canned rant

a quick word on grounding
Canned Grounding Rant-
shut down system and remove side panel. with the power cable plugged into the PSU touch a bare unpainted metal area of the case. (my favorite spot is an unpainted screw securing the PSU) once you have grounded yourself you can unplug the computers power cable from the PSU and can touch the system.
if you move your feet, or shuffle in your chair, plug in the cord, reground yourself and unplug again.
end canned rant-
Here is the manual for my motherboard: https://dlcdnets.asus.com/pub/ASUS/mb/LGA1151/TUF_B365M-PLUS_GAMING_WI-FI/E15431_TUF_B365M-PLUS_GAMING_UM_WEB.pdf?_ga=2.204153304.99270821.1571176602-434956718.1534176854

I cant find a single place to put the speaker, can you?

EDIT: found it on the system panel connector
 
Last edited:

R_1

Glorious
Ambassador
page 1-4 section 11

its a 4 pin block directly opposite the power LED connector
a 5V, Ground, ground, and, speaker. these 4 pins are the speaker connection, only the speaker and the 5v are used the two ground wires in between them can be ignored.
 

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