Question Can't boot Gigabyte B650 Eagle AX with power button. Can use qflash button.

Toggle sidebar Toggle sidebar
B

beurnii

Distinguished
Aug 21, 2014
76
0
18,630
TLDR: Looks like the power pin from the motherboard doesn't switch on the power supply, preventing the boot and any sign of life. Works fine when using the QFlash button without flash drive to boot up to OS.

I recently upgraded my desktop computer to a AMD R7 7700X, Gigabyte B650 Eagle AX and 32gb of DDR5 ram (link) and I am facing issues with booting.

It actually started 2 weeks after installing it, the power button simply has no effect at all. When pressed, nothing is happening, no lights on the motherboard, no click from the PSU. Same thing when shorting the pins directly on the motherboard.

I tried removing everything that wasn't necessary, only leaving cpu, a single stick of ram, the 24 pin and 8 pin psu cable. There was no effect. I tried all ram slot without improvements. Updated the bios with Qflash, it worked but no improvements. When playing with it, it would sometime randomly boot. I could not find a pattern, nor reproduce it. My PSU seems to be working fine, it was doing well with my old platform and correctly starts when I short the 4th pin in the 24 pin cable. I assumed broken motherboard.

I went to computer canada to have it tested. They used the same motherboard, cpu and ram. They were never able to reproduce my issue, while trying different ram slot, were having some issue. They exchanged the motherboard and we tested it. Looks like it was working fine.

I came back to my place, plugged the new motherboard in and still no sign of life. I found that I can boot to ssd when using the Qflash button without having a flash drive with bios inserted. No sign of instability from the PSU whatsoever when doing that.

Any idea what is going on? Thanks!
 
beurnii said:
TLDR: Looks like the power pin from the motherboard doesn't switch on the power supply, preventing the boot and any sign of life. Works fine when using the QFlash button without flash drive to boot up to OS.

I recently upgraded my desktop computer to a AMD R7 7700X, Gigabyte B650 Eagle AX and 32gb of DDR5 ram (link) and I am facing issues with booting.

It actually started 2 weeks after installing it, the power button simply has no effect at all. When pressed, nothing is happening, no lights on the motherboard, no click from the PSU. Same thing when shorting the pins directly on the motherboard.

I tried removing everything that wasn't necessary, only leaving cpu, a single stick of ram, the 24 pin and 8 pin psu cable. There was no effect. I tried all ram slot without improvements. Updated the bios with Qflash, it worked but no improvements. When playing with it, it would sometime randomly boot. I could not find a pattern, nor reproduce it. My PSU seems to be working fine, it was doing well with my old platform and correctly starts when I short the 4th pin in the 24 pin cable. I assumed broken motherboard.

I went to computer canada to have it tested. They used the same motherboard, cpu and ram. They were never able to reproduce my issue, while trying different ram slot, were having some issue. They exchanged the motherboard and we tested it. Looks like it was working fine.

I came back to my place, plugged the new motherboard in and still no sign of life. I found that I can boot to ssd when using the Qflash button without having a flash drive with bios inserted. No sign of instability from the PSU whatsoever when doing that.

Any idea what is going on? Thanks!
Click to expand...
How about button on the case, Did you test it ? Maybe also it's wires and connection to MB ? Reset button is exactly same so you can try to substitute Start button with it. Or just locate the two pins on the MB and short them for a second.
 
CountMike said:
How about button on the case, Did you test it ? Maybe also it's wires and connection to MB ? Reset button is exactly same so you can try to substitute Start button with it. Or just locate the two pins on the MB and short them for a second.
Click to expand...
I tried to directly short the power switch pins from the motherboard. No difference
 
Remove all but 1 stick of ram, the gpu and any ssd drives connected and see if it has any effect. If that does not work, try to do a breadboarding setup, which is to say take the board out of the case, put it on your motherboard box, connect cpu power and motherboard power to it, leave the cpu installed, install 1 stick of ram and then try to short the pins. If that does not work, you may have a bad board.
 
ohio_buckeye said:
Remove all but 1 stick of ram, the gpu and any ssd drives connected and see if it has any effect. If that does not work, try to do a breadboarding setup, which is to say take the board out of the case, put it on your motherboard box, connect cpu power and motherboard power to it, leave the cpu installed, install 1 stick of ram and then try to short the pins. If that does not work, you may have a bad board.
Click to expand...
I tried removing anything that is unnecessary, but it did not improved it. I will test it outside of the case next time I am facing the issue. For some reason, it is not constant, sometime it's working fine, sometime it wont. Both can last days. Do you see any logic with that?
 
Definitely sounds like something in case shorting motherboard. Something not obvious like loose screw or cable touching place it should not. So it sometimes works and sometimes causes short. It probably killed first mobo and now slowly killing he second one. Breadboard system first as previously mentioned. If it works outside of case, redo whole build, every screw, cable, connection.
 
Something similar happened to me, from night to the morning, i woke up and tried powering the pc on with no luck, i tried many different things, took the pc apart and everything, ended up being the motherboard that died overnight.
Try to see if the psu delivers power to other devices, like fans that can connect directly tl the psu.
Most likely a bad motherboard.
 
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom