Solved Computer monitor says no signal

June 3, 2016 at 19:34:22
Specs: Windows 10
I was recently on my computer when the screen suddenly went black. My computer was still on and wouldn't shut off. I had to flip the power switch in the back to turn it off. The computer turns on and the fans run fine, but the monitor still says no signal. I tried multiple monitors, hdmi, and dvi. I tried the gpu and motherboard connection, but it doesn't work on either. I know it isn't the gpu or the monitor. I double checked the connections for the motherboard and they are all secure. The computer does not beep or make any noise when I turn it on. I have it narrowed down to the motherboard or psu. Is there any advice on how to pin down which it is before I get the new part? I should mention that the computer was built by newegg, and I haven't changed any of the hardware. The computer is four, five, maybe six years old.

Motherboard: msi ms 7641 ver 4.0
GPU: amd radeon hd 6670
PSU: turbolink power switching atx-tl500w-bk


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✔ Best Answer
June 4, 2016 at 05:18:13
The problem is with the tower, not the monitor. The fact that you're not hearing any beeps at startup means the problem is with the board, CPU, or PSU. Being that you stated you have a "turbolink power switching atx-tl500w-bk", that would be the place to start...it's complete garbage. Here's a clip from a Hardware Secrets review of the 450W version:

"We thought it was illegal to sell this kind of junk in America. The Apevia Turbolink ATX-TL450W-BK is sold as a 450 W unit, but it can only deliver 240 W. Having a fake wattage is the smallest of its problems: it is a piece of junk that can damage your computer, since it provides noise/ripple levels above the maximum allowed, as it doesn’t have the required filtering coils in its secondary."

http://www.hardwaresecrets.com/apev...



#1
June 3, 2016 at 22:34:27
Flat Panel Monitor Displays Message about No Signal, Signal out of Range, Sleep, or Power Save
http://h10025.www1.hp.com/ewfrf/wc/...
This may or may not apply.
Press the keyboard Suspend button. You may need to press the Suspend button on the keyboard twice (the suspend button has an icon that looks like a quarter moon).

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#2
June 4, 2016 at 00:20:27
Hello, Johnw. I appreciate the reply, but that unfortunately did not solve the problem. Thank you for taking the time to offer advice though.

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#3
June 4, 2016 at 01:35:39
The input to your monitor is damaged as it seems. Take your monitor to a servicing centre.
Everything else in the CPU is fine, if that's true that the fan runs usual while startup.
Hope this helps :)

Jay Sarma
Musician and Computer Geek


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Related Solutions

#4
June 4, 2016 at 04:41:24
Hi Insert,

A) have you tried the monitor on another pc?

B) It could be the psu.

To check this you need to meter its outputs.
Some are to supply the graphics only.
Check the psu make and model type to ascertain which wire/connector supplies what.

C) Does the mobo have a monitor connector?
Some don't, which I think is crazy!
If so, have you tried removing the graphics card and using the connector?

Good Luck - Keep us posted..


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#5
June 4, 2016 at 05:18:13
✔ Best Answer
The problem is with the tower, not the monitor. The fact that you're not hearing any beeps at startup means the problem is with the board, CPU, or PSU. Being that you stated you have a "turbolink power switching atx-tl500w-bk", that would be the place to start...it's complete garbage. Here's a clip from a Hardware Secrets review of the 450W version:

"We thought it was illegal to sell this kind of junk in America. The Apevia Turbolink ATX-TL450W-BK is sold as a 450 W unit, but it can only deliver 240 W. Having a fake wattage is the smallest of its problems: it is a piece of junk that can damage your computer, since it provides noise/ripple levels above the maximum allowed, as it doesn’t have the required filtering coils in its secondary."

http://www.hardwaresecrets.com/apev...


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#6
June 4, 2016 at 05:23:52
Here's a Corsair 550W unit for just $36 after coupon code & rebate:

http://www.newegg.com/Product/Produ...


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#7
June 4, 2016 at 06:36:42
Thank you for responding, riider. I thought it might have been the psu, but I hooked the monitor straight into the motherboard and had the same problem. When the monitor went black, I thought the power in the house had gone out. It felt like a power issue, so starting with the power supply in the tower seems like a good idea. Thank you.

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#8
June 7, 2016 at 11:32:49
I ordered and installed a new psu like riider suggested and it solved the problem. Than you all for the help.

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#9
June 7, 2016 at 17:28:44
"Here's a clip from a Hardware Secrets review of the 450W version"
Nice googling riider.

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