New PC build, Monitor has no signal.

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mattsutton12

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Jun 22, 2013
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I have gone through the given checklist on the website. My new build contains an ASUS M5A 78L-M motherboard, FX 6100 CPU, AMD 7770 GPU. When I turn on the power all LEDs activate, all fans are spinning. However when I connect my motherboard VGA port to that on my monitor the monitor still displays no signal. When I restart it, the same thing occurs. I have tried starting with only 1 stick of RAM installed (Corsair 1600MHz RAM, 2x4gb).

I do not know what the problem is and am unable to install Windows without a monitor output. Any possible causes?
 
Solution
Tom Tancredi
Okay 1) your getting a false-positive from your USB/NIC test. You can't connect a PC to PC via normal USB, takes a special device. Second NIC to NIC is the same way unless you use a crossover cable and setup a virtual network to assign each PC a set of IPs and all that to talk to each other. So your relying on a false positive, and would suggest forgetting that.

2) Okay we need some clarification. Your saying BOTH Mobo AND GPU has HDMI??

3) For all testing keep the GPU out as your point here is to validate the Mobo is working and its components. I would have the BARE MINIMUM connected at this point. Just to Mobo (to power it and the CPU), CPU, Memory, and a monitor plugged into the Mobo, nothing else. If you can't get the BIOS...
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Tom Tancredi

Tom Tancredi

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May 9, 2013
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YEAHHHHh.... You said "AMD 7770 GPU... However when I connect my motherboard VGA port " What happens when you connect to the the Video Card instead? You mention NO BEEPS of any sort - the normal way the hardware tells you there is a problem?

If the system was getting past POST and BIOS, then you should hear the harddrive spin up, do you? If you have a DVD in the drive, does that spin up after "all LEDs active"? If not you may just need to reseat the Video Card, restart, then try reseating the memory, restart, then try reseating the CPU and restart.
 
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mattsutton12

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Jun 22, 2013
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I hear the DVD drive spin up, as well as the hard drive. I thought it could be a monitor issue but it works fine on the PC I am currently using. Have reseated the Memory and CPU, GPU has no VGA port meaning I cannot connect it. Will keep trying.
 
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mattsutton12

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Jun 22, 2013
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As an update, I have connected my PC via ethernet to my laptop, and my laptop read it as a lan connection. There is also some feedback from my laptop when linked via VGA so I am not sure. Do you need a CPU for the LAN connection to take place. In other words, could it be the CPU?
 
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Tom Tancredi

Tom Tancredi

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May 9, 2013
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Okay, back up a sec. "GPU has no VGA port meaning I cannot connect it" - Why did you put it in then if you have no monitor that can connect to it? (makes no sense)

As there is a graphics built into the motherboard, remove the GPU since you have no Monitor for it anyway and see if that resolves the issue (mother defaulting output to GPU then onboard VGA port).
 
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mattsutton12

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Jun 22, 2013
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10,510
Sorry for my nievity, I have no idea about the cause. Will try what you have said. I have checked the CPU for bent pins again and all seems fine, plus I was careful about ESD.

Edit: Have just tested without GPU, still having the same problem. HDD and Disk Drive start and all fans spin but monitor detects no output. Have tried two monitors now and both seem to be working with my laptop and both have no output. What are the chances I have killed my CPU with static?

Second edit: Have just connected to a HD TV via HDMI, both through GPU and MoBo with and without GPU installed. The TV recognizes the PC is connected when it is powered on, but displays no output. Have decided that the motherboard is working as my laptop also recognizes it via USB and Ethernet, but still no video output.
 
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Tom Tancredi

Tom Tancredi

Judicious
May 9, 2013
4,999
0
32,960
Okay 1) your getting a false-positive from your USB/NIC test. You can't connect a PC to PC via normal USB, takes a special device. Second NIC to NIC is the same way unless you use a crossover cable and setup a virtual network to assign each PC a set of IPs and all that to talk to each other. So your relying on a false positive, and would suggest forgetting that.

2) Okay we need some clarification. Your saying BOTH Mobo AND GPU has HDMI??

3) For all testing keep the GPU out as your point here is to validate the Mobo is working and its components. I would have the BARE MINIMUM connected at this point. Just to Mobo (to power it and the CPU), CPU, Memory, and a monitor plugged into the Mobo, nothing else. If you can't get the BIOS screen at all, then you narrowed down the problem points.

4) No BEEPS or TONES are heard during start up? Like a series of short ones, a long one , a short then long? If you heard ANY series or types of beeps, you need to look in the Mobo manual for that ERROR to narrow down what is having a problem. THIS IS A#1 First STEP.

5) Based on your last feedback to me either CPU or Mobo are hosed. If you were successful in (3) above... then add on more parts and you had more problems again, then I would resolve the issue is the powersupply (mopre parts more demands suddenly having issues).

 
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Solution
M

mattsutton12

Honorable
Jun 22, 2013
9
0
10,510


Thank you for your help. Yes both the GPU and Mobo have HDMI. As far as I can tell there are no beeps made by the speaker at this point but I will try connecting a friend's speaker to see if I get some feedback from that.

Just tested with just the bare minimum and still no output. Will take it to a repair shop where they can test the mobo and the CPU. Thanks for your help.
 
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