If the power supply checks, I would go with post #50.
Needs proper and good ram to get the beep
Use the spkr out to a small spkr if it is not in a case
hope you get it
I tried a small speaker that uses a 1/8” stereo plug, connected to the “front speaker” output. But, those speakers actually use USB power. I’ll try passive headphones.
The RAM test function SEEMS to work.
I tried both the headphone and front speaker outputs into known good headphones. No beep.
The manual does not indicate any speaker on the MoBo. The 10 pin front panel audio connector on the MoBo seems to go to the jacks in the top front of the computer.
Will try the “disconnect almost everything” after supper.