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Home built pc no signal first start

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April 2, 2011 8:03:49 PM

Hey guys,

This is my first time building a PC from scratch, so if I am being an idiot here, just tell me. Regardless, I started building my PC last night. All of the hardware fit in fine, but when I went to boot the PC for the first time, everything turned on (graphics card fan, cpu fan, chassis fan, lights, ect..) but it did not give me any video signal no matter how many different monitors I tried with it. Eventually, I started getting a red memory access light on my motherboard and I looked online for a while and found that the motherboard I am using, M4A89GTD USB/PRO, would not boot with two sticks of RAM sometimes upon entering BIOS. I took out a stick of RAM but it still didn't work and the memory access light blinked a few times then stopped. I decided to take a shot in the dark and unplug the GPU (I had connected a PCIE 6+2 PIN with just the 6 pin connected and another regular 6 PIN connected too. After I unplugged it, I got it to boot and I installed Windows 7 64 bit. After that, I installed the motherboard drivers and all updates needed. I then turned off the pc, plugged in the GPU, and put in the other stick of RAM and it did the same thing as before. Can anyone find out what I am doing wrong???

System Specs:
AMD 1100 3.3Ghz CPU
Nvidia GTX 560 ti Palit 2gb
Lite-On scribe multiformat dvd writer
Hitatchi 2tb 7200 RPM 64mb cache HDD
8gb (2x4) Gskill DDR3 1333mhz RAM
Windows 7 Home Premium 64 bit
Earthwatts 650 watt PSU
XION Predator gaming case

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April 8, 2011 3:21:14 PM

If I am understanding this correctly, you're only leaving one 6-pin connector attached to your video card in order for it to run so you could install Windows and operate in Windows, but when you plug both 6-pin connectors into the video card, you can no longer see any video? Correct?

First, you should not have to remove RAM to enter the BIOS. Have you tried using both RAM modules while only plugging one six-pin connector into the video card? Does this work?

In 2D mode, your video card requires far less power and one 75W 6-pin connection is getting you enough juice to the card to install Windows and enter the Windows environment. I would have had you try different 6-pin connectors though you only have two on that power supply so we'll go on to things we can try. Can you boot to Windows connecting the same single 6-pin connector to the other jack on the video card? What about the other six-pin connection to either of the connections on the video card?

Your power supply is sufficient. If you can leave both RAM sticks in and either one of the power connectors coming from the power supply give you enough power to boot to Windows, the problem is with the video card and I'd suggest you exchange it. If one of the power connectors coming from the power supply plugged into the video card allows you to boot to Windows while the other one doesn't plugged into the same connection on the video card, you have a problem with the power supply and I'd suggest you exchange that.

You can't run games or programs requiring 3D manipulation without your video card requiring more power than the single six-pin power connection can provide.

Let us know.
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April 20, 2011 2:01:37 AM

ubercake said:
If I am understanding this correctly, you're only leaving one 6-pin connector attached to your video card in order for it to run so you could install Windows and operate in Windows, but when you plug both 6-pin connectors into the video card, you can no longer see any video? Correct?

First, you should not have to remove RAM to enter the BIOS. Have you tried using both RAM modules while only plugging one six-pin connector into the video card? Does this work?

In 2D mode, your video card requires far less power and one 75W 6-pin connection is getting you enough juice to the card to install Windows and enter the Windows environment. I would have had you try different 6-pin connectors though you only have two on that power supply so we'll go on to things we can try. Can you boot to Windows connecting the same single 6-pin connector to the other jack on the video card? What about the other six-pin connection to either of the connections on the video card?

Your power supply is sufficient. If you can leave both RAM sticks in and either one of the power connectors coming from the power supply give you enough power to boot to Windows, the problem is with the video card and I'd suggest you exchange it. If one of the power connectors coming from the power supply plugged into the video card allows you to boot to Windows while the other one doesn't plugged into the same connection on the video card, you have a problem with the power supply and I'd suggest you exchange that.

You can't run games or programs requiring 3D manipulation without your video card requiring more power than the single six-pin power connection can provide.

Let us know.


Hey, sorry I didn't reply earlier on, I've been busy with work and preparing some final projects. I was using both of the 6 pin connectors, so it was a sufficient amount of power. I finally, fixed the problem though, and yes, it was the GPU...sort of at least. You see, the motherboard I am using claims that you need to use the VGA switch card in one of the PCI express slots when you are not running in SLI. Apparently, when you are using certain Nvidia cards, having the VGA card in will cause the "no video signal issue. So I removed the card and one of the PCI express slots are now empty and it works. Anyway, thanks for the help though!
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April 27, 2011 4:33:28 AM

Best answer selected by SuperDuper931.
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February 3, 2012 10:12:48 PM

This topic has been closed by Mousemonkey
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