Computer Won’t display

[Herald23]

My hp prodesk 600 sff isn’t working but in multiple ways. At first when I’d press the power button the only response I would get was the sound of the fan spinning a few times every 5 seconds, with no display and my keyboard and mouse not lighting up while plugged in. After opening it up and making sure most wires are tight, it now will run but still with no display, mouse and keyboard won’t light up, and the power button flashes 3 long red beeps followed by 2 short white ones.

[Bill_To]

Hi @Herald23 

Welcome to the HP Forum.

A 3:2 error code would indicate a memory problem.

Try each factory memory module, one at a time, in each memory slot to check for a good POST.

You may have to replace any faulty memory modules if you find a bad one.

Regards