check signal cable message at startup

September 16, 2011 at 18:09:21
Specs: Windows 7
I just built my first pc and I am trying to install the Windows 7. In order to install the program I would have to see what I am doing. This is where the problem lies. When I turn on the pc and then turn on the monitor, the screen display is saying "check signal cable". What am I doing wrong?

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September 16, 2011 at 19:44:26
Signal cable maybe referring to the hard drive's signal cable. Try unplugging it and plugging it back in again or reversing it if SATA drive, or simply changing it out for a spare. Try unplugging it entirely and make sure you can boot to the BIOS set up and set defaults, then try the hard drive again.

You have to be a little bit crazy to keep you from going insane.

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September 16, 2011 at 19:59:39
That message is generated by the monitor. It's not getting a signal. It might be the monitor cable or video card but more likely the computer simply isn't working. You turn it on and LED's flash and fans and drives spin up but that doesn't mean it's working properly. You've got a bad part or an incompatible part or maybe you assembled it wrong. Maybe the motherboard is shorting against a mounting stud.

Check my # 2 here:

and this:

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September 16, 2011 at 20:42:17
I switched the sata cables on my hard drive and nothing changed. I wondering if I need a DVI cable also, along with a VGA cable because there is also a pin connector for DVI on the graphics card and monitor. Or do I only need one of them?
I already have the VGA cable.

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September 16, 2011 at 21:22:14
No you only need one cable. You might check the monitor manual to see if there's anything special you need to do when using either connection but you probably just need to make the connection and the monitor will auto detect which one is being used.

Or just temporarily connect it to the computer you're using now.

After you've verified the problem is not with the cable take a look at my # 2 post above.

I assume you're not getting any posting beeps, right?

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September 16, 2011 at 22:12:32
I am not getting any beeps when I turn on my computer. I hooked up the monitor to my laptop and the end result was that monitor still said "check signal cable". Also is not making the beep sound because my PSU is bad but it is brand new?

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September 16, 2011 at 22:43:46
You might have to enable the external VGA on your laptop in its bios setup. Check the laptop manual. If you can't get it working you may need to find a regular (known working) desktop PC and swap your monitor in. I don't think the problem is with the monitor cable but I'd feel better if you could verify that by getting it to work on another PC.

Is the monitor cable you're using the one that came with it originally? Some of those LCDs can be picky about the cable they'll work with.

No beeps usually means the motherboard isn't working at all. It may be a problem with the motherboard or PSU or something connected to the motherboard or. . .well the same stuff in the links in my # 2 above.

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September 17, 2011 at 10:42:21
Thanks for the help. I figured it out, the VGA cable was bad and now I am using DVI instead.

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