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fan spinning but no display - RESOLVED

So i just bought a new pc and i build it myself. But when i started were no signal on the screen just a message “No signal input“. Any ideas please

CPU: Intel i5 9th gen

Motherboard: PRIME H310M-K R2.0

RAM: G.SKILL AEGIS 8GB

NO OPERETION SYSTEM

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Problem solved guys thanks!!

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What was it? Someone else might find it useful.

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Ok, saw it. Thanks.

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Hello everyone. I a, having the same issue, no graphic card yet, and I can hear the one beep followed by 3 beeps, meaning graphic card issues. Does it needs absolutely a graphic card?

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3 Answers

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Hi,

Have you checked that the keyboard is connected to the motherboard?

Have you checked that the RAM is properly inserted?

Have you got a chassis speaker attached to the 4 pin speaker header pins on the motherboard?

This will let you hear any beep error codes for POST failure.

Here's a link that may help with this.

Here’s an image from the motherboard manual that shows where it is located.

Block Image

(click on image to enlarge for better viewing)

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I have connect the keyboard and the RAM correct. But i have not a 4 pin speaker

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Hi,

So you don't get the Asus "splash screen" and nothing when you press either F2 or Del when the PC is first started, is this correct?

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@jayeff yes nothing at all just a black screen

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Hi,

Finding a speaker and connecting it to the motherboard will definitely help.

At least it will tell you if there are other signs of life in the motherboard besides the fan.

Did you install the CPU onto the motherboard or was it already installed when you got it?

If you installed it yourself, was the CPU socket cap still on when you got the motherboard and before you installed the CPU and if not did you check that there were no bent pins in the motherboard's CPU socket before inserting the CPU?

Just verifying that you also connected the 4 pin power cable from the PSU onto the motherboard.

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Ok problem solved. Turns out that the ram was in the wrong place the speaker defenetly help thanks! =)

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Couple things to consider:

  1. Is your monitor turned on?
  2. Is your monitor on the correct input? Not all monitors automatically select an incoming signal.
  3. Are you using integrated video, or an add-on video card? Some motherboards require a first boot to be with the integrated video first to select a default video source in the BIOS.
  4. Is the CPU properly seated in its socket?
  5. If you didn't take proper precautions when installing the CPU, static might have damaged it.
  6. Check the CPU for damaged or bent pins.
  7. You could have damaged the CPU when installing the heatsink/fan assembly.
  8. Could be a defective motherboard or CPU.
  9. Are all the proper power supply connectors plugged into the right places on the motherboard?

Any of the above, in most motherboards, can give you a blank screen at power on. As @jayeff said, having the speaker to at least get audible post codes would certainly help.

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Hi @Familia Devenish-Fernandez

If you're sure that a 1-3 beep code is a vga problem and the cpu or motherboard doesn't cater for onboard graphics then the only option is to insert the graphics card and find out what happens.

The BIOS will not pass POST (Power On Self Test) without a video adapter connected, either onboard (integrated with CPU) or on a card

What is the make and model number of the motherboard and the CPU?

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