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I am trying to build a pc and it will not POST.

I am getting 5 short beep codes which for AMI should be a CPU failure.

The hardware is as follows:

  • Gigabyte B660M DS3H DDR4
  • Intel i3-12100f
  • Corsair Vengeance CMK16GX4M2B3200C16
  • Corsair RM750 Power Supply

What I've tried:

  • Replacing the motherboard
  • Replacing the CPU
  • All the different "CPU" sockets on the modular power supply.

It is currently hooked up with just 1 stick of RAM, the CPU, Cooler and the speaker.

All I can think is that the RAM is incompatible at this point? With no memory installed, I get 5 long beeps.

Any troubleshooting tips?

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  • Standard question, did you take proper anti-static precautions? If not, anything and everything could be broken. Note, touching the radiator occasionally whilst you work on it, is not a proper anti-static precaution.
    – Bob Goddard
    Commented Nov 8, 2022 at 19:54
  • Yes I did. I was not so careful the first time (put together quite a few without), new mobo and CPU, I did indeed wear my ESD band.
    – Romuloux
    Commented Nov 8, 2022 at 19:59
  • Try this solution.
    – harrymc
    Commented Nov 8, 2022 at 20:10
  • Saw that in my googling. I don't believe this board has a bios jumper. The 2 that I can find are a RST and the CMOS. Both don't have any jumpers on them.
    – Romuloux
    Commented Nov 8, 2022 at 20:23
  • The BIOS jumper is the CMOS jumper. It is marked CLR_CMOS in the manual page 27. You need to short it as per the manual. I assume you have plugged the 2 correct power cables onto the mb and plugged in the cpu fan.
    – Bob Goddard
    Commented Nov 8, 2022 at 20:40

1 Answer 1

Reset to default
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So I figured it out and it was an oversight in my build.

The 5 beep codes were to indicate that my CPU did not have onboard graphics (hence the 5 beeps to indicate a CPU error).

I overlooked that a 12100F does not include onboard graphics. Threw a graphics card in and everything boots just dandy with no beep codes and full POST.

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