PC stopped POSTing

[ChipowpowJr]

I recently got a new pc and have been playing games and enjoying it. Last night i turned it off using the case off switch then the psu off switch. Now while the pc turns on, mouse and keyboard light up, nothing is projected to the screen. And yess the monitor is connected.

[richodude]

1. Make sure your BIOS version is compatible with the CPU generation you're trying to run in your motherboard, you can consult the manual or the manufacturer's website about this.
2. Check if EVERY power cable is connected. Auxiliary power connectors included.
3. Make sure the cable coming from your monitor is attached securely to the graphics card. Also make sure it is securely attached to the monitor itself.
4. Make sure your PSU is powerful enough to power your complete system.
5. Make sure your monitor works by testing it on a different computer.
6. If you have both a dedicated GPU and an iGPU, try your monitor on both the outputs on the graphics cards as well as on the motherboard.
7. Make sure all connectors and cables are plugged in securely, reseat if necessary.
8. Make sure your RAM, CPU and GPU are plugged in securely, reseat if necessary.
9. If the motherboard you're using has debug LEDs, check the error code and consult the motherboard manual to see what it means.
10. If you have a debug speaker connected to the motherboard, note the beep sequence and consult the motherboard manual or this thread to see what it means.
11. Try clearing your CMOS.
12. Try booting your computer with only a motherboard, CPU and one stick of RAM attached (if you don't have an iGPU, plug in your GPU as well ).
13. Make sure your GPU works (if you have a dedicated one), try it in another computer.
14. Make sure your RAM works, try it another computer.
15. Make sure the RAM is compatible with your CPU and your motherboard.