Ok, first, let me thank you for clicking on my clickbait subject line lol…
PC started this randomly this morning… no power outages, etc… just one day she’s fine, next this.
Looks to me like short protection (hence, I removed as much as I could)… wondering if the internet has any ideas on the next diagnostic steps - how can I determine if this is the mobo, psu, cpu… I’m assuming we’re likely talking one of those three?
unhook the front panel reset and power switches, then jump the power switch with a appropriate sized screwdriver to turn on. you may have a bad power switch.
if that fails unhook the PSU and try a new one.
i think its the power switch because the mobo led’s stay on, leading me to believe its not a internal PSU shutdown due to a short (which would kill all power).
although it could be the psu has failed in a way that doesnt provide enough power to start the board.
My advice is to always begin by removing everything that you don’t need to POST. Disconnect all periphials (usually SATA devices).
All you need ot POST is…
1-Motherboard
2-CPU
3-RAM
4-Power Supply (plugged into the Motherboard 24pin and CPU 4/8pin
5-Video card (only if your board does not support integrated graphics)
If your PC supports integrated graphics, plug your monitor into the motherboard HDMI or DP.
If you POST properly, you can troubleshoot by plugging in each peripheral from there. If you don’t POST, you know the issue is with one of those 4, and should start by swapping out the PSU.
I had this same problem with a friends PC. Turns out it was one of the SATA PSU cables. GL
Yeah try to just boot to BIOS/UEFI. I one had Molex-to-SATA cable short out and kill my SSD. Maybe your PSU is fancier than my garbage and detects than.
Thanks for your help… got me to stop thinking about faulty RAM, GPU, Mobo shorts and look at the basics… swapped in another PSU and she fired right up.
I didn’t really consider the PSU… it’s a Corsair SF600 (not sure who made it for them) and it’s only a couple of years old, always run in a dust free area of the case with good airflow (an 80mm fan just for the lower part of the case, only housed a SSD and the PSU).
Anyways, I’ll begin the RMA process with Corsair and hopefully they’ve (whoever built it) gotten better at their SFX designs.