CPU LED
The board stops on CPU
What it means
POST stopped on the processor check: power, socket, firmware or the CPU itself.
Common causes
- The 8-pin EPS power cable is not connected
- The BIOS does not support the installed CPU
- Bent socket pins or a faulty CPU
How to fix it
- Check both the 24-pin and the 8-pin EPS cables from the power supply.
- Look up the CPU in the board's support list; an old BIOS may need a flashback update.
- Reseat the CPU cooler and check the socket for bent pins with a light and a photo.
- Clear CMOS and test with one RAM stick.