Troubleshooting New Build That Won’t Boot: Fans Turning, No Beep or Video


When my new system is powered up, the case fan and power supply fans turn fine. The CPU fan twitches, but never gets going. Although I've heard that with AMDs and Gigabyte motherboards that is not necessary a problem. Hard drive is spinning. However, there is absolutely no indication that anything else is happening. The motherboard, as far as I can tell, does not have an internal speaker, but I harvested one from another machine and plugged it in and still no beeps at all. The monitor screen stays black, on both the integrated VGA and DVI.

This is a brand new build, and has never successfully booted.

My parts are:

  • AMD Athlon II X2 245 Regor 2.9GHz
    Socket AM3 65W Dual-Core Processor
    Model ADX245OCGQBOX – includes CPU
    785G HDMI Micro ATX AMD Motherboard –
  • G.SKILL Ripjaws Series 4GB (2 x 2GB)
    240-Pin DDR3 SDRAM DDR3 1333 (PC3
    10666) Desktop Memory Model
    F3-10666CL8D-4GBRM – Retail
  • CORSAIR CMPSU-400CX 400W ATX12V V2.2
    80 PLUS Certified Compatible with
    Core i7 Power Supply – Retail
  • SAMSUNG Spinpoint F3 HD502HJ 500GB
    7200 RPM SATA 3.0Gb/s 3.5" Internal
    Hard Drive -Bare Drive
  • COOLER MASTER Elite 341
    RC-341C-KKN1-GP Black Steel MicroATX
    Mid Tower Computer Case – Retail
  • I also have a DVD burner, but it acts
    the same whether that is plugged in
    or not.
  • I'm using the on board video.

What I've tried so far:

  • I've switched power supplies, with no
  • I've tried different monitors (of
    which all are working on other
    machines) with no difference.
  • I have tried putting it one memory
    module at a time, with no difference.
  • I have tried the absolute minimum I
    can think of (power supply into
    motherboard, power button ONLY
    plugged into front panel, CPU fan
    plugged in), with no difference.

I appreciate any ideas anyone might have. Do I need to RMA the motherboard? This is my first build, so there might be something obvious. I was very careful in assembly with static; I'm confident nothing was zapped during assembly.

Best Answer

Is the CPU seated correctly? The internal speaker from the other build could possibly be of no use anyway if it isn't working itself.

By a "black screen" do you mean the monitor gets no signal? Or it gets a signal but remains black? Is there a prompt?

Sounds like a DOA motherboard to me. I'd say RMA.

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