why my Windows 10 desktop monitor does not display?

November 14, 2016 at 15:43:18
Specs: win 10, 2.7 Hertz/ 4 gb
my monitor does not display. When I turn on my computer, it starts but no display. I heard a beep then the monitor lght turns fom green to red, then starts blinking.Also the screen shows this error message: "no signal, check the cable". I checked the cable to make sure it is connected properly. Then, I removed the monitor with the same cable attached to it and connect it to my laptop.It displays.What could possibly be wrong? This is a DELL desktop computer. Also,the keyboard lights did not come on.

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#1
November 14, 2016 at 16:09:39
Most likely a hardware fault. Is the graphic card part of the motherboard or an extension board?

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#2
November 14, 2016 at 16:23:21
The problem is with the tower, not the monitor. Does the tower beep when powered up?

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#3
November 14, 2016 at 20:19:27
Trash the DELL and get an hp. DELL does not honor rebates. Dude don't get the DELL.

And you may just need a new monitor. Or your graphics are fried. Any thunderstorms recently? Have you went inside your tower to clean and didn't de-electrify yourself?
I don't need to be right, but I am never wrong.

message edited by stiefler182


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#4
November 14, 2016 at 23:23:14
Did that monitor previously work on that computer?

So nothing at all shows on the monitor--not even the logo or posting screen when you first turn on the computer?


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#5
November 15, 2016 at 06:50:55
"you may just need a new monitor"

It's not the monitor. He stated that it displays "no signal, check the cable" which indicates it's good but not receiving a video signal from the tower. He also stated it works when connected to his laptop.

"Trash the DELL and get an hp. DELL does not honor rebates."

What does rebates have to do with anything? I'm guessing you feel you got screwed out of some rebate cash & are "paying it forward" by bad-mouthing Dell? We have no idea what's wrong with the Dell other than it's not putting out a video signal & there's no lights on the keyboard. It could be a bad power supply, bad motherboard, bad CPU, etc. It's probably not bad graphics because that wouldn't affect the keyboard. More info is required to properly diagnose the problem.


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#6
November 15, 2016 at 07:01:50
nothing but this error message and a beep :"NO SIGNAL CHECK CABLE"

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#7
November 15, 2016 at 07:06:15
and what more information do you need? Will be happy to provide it to you. Thanks.

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#8
November 15, 2016 at 09:57:04
Model/model number of the tower might be helpful. Single beep? Multiple beeps? Generally, a single beep means "all is well" but being that the keyboard isn't lighting up, it would seem all isn't well. Did you check the keyboard connection?

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#9
November 15, 2016 at 10:15:43
Does the beep sound like the normal beep at startup, or does it
sound different from normal? Like two or three beeps instead of
the normal one beep?

Do you have a user's manual for the computer? Sometimes the
manual has a section on troubleshooting near the back which
explains what the beeps and different power button light colors
indicate.

The problem is likely in the motherboard, the power supply, or a
connection between them.

-- Jeff, in Minneapolis


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#10
November 15, 2016 at 12:05:24
Hi Jerry , have seen same elsewhere.

It could be the power supply in the Tower, as some mobos require psu connections for graphics card use only.

No Keyboad lights is strange, can you see HDD activity, and does the pc appear to start, although without picture?

As Sluc asked, you have not advised whether or not there is a graphics Card.
If there is, and the mobo has a built in monitor port, try that.
If not, try another Graphics Card.

Good Luck - Keep us posted

message edited by Mike Newcomb


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#11
November 15, 2016 at 17:06:40
I will keep my opinions to myself. Yes, I had a bad experience with DELL. I won't force that anymore. DELL is bad, hp good. Just saying. I will try to not ruffle the feathers of the general population again. riider you are right, you stuck up for me. Thanks for that. I am on your side.

So I will recant my previous statements and suggest the motherboard has bit the dust (hopefully not and it is just the graphics card [possibly]), or the boot sequence has been severely corrupted.

I don't need to be right, but I am never wrong.

message edited by stiefler182


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#12
November 15, 2016 at 22:45:05
I missed that it was the light on the monitor that changed from
green to red, then started blinking. I assumed it was the power
light on the computer itself, since that light normally blinks
during sleep, while I've never seen a blinking light on a monitor.

However, because the keyboard lights also don't come on, the
problem is clearly either with the motherboard, the power supply,
or a connection between them, not with the graphics controller.

I'd guess that the power light on the monitor changed color,
while the power light on the computer started blinking.

-- Jeff, in Minneapolis


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#13
November 26, 2016 at 11:13:06
I have had this before where the BIOS has 2 video display options and the monitor is not connected to the option selected in the BIOS
. As mentioned try the both the onboard connector or the video card connector once the hard drive has stopped clicking ( loading windows ).
(PS personally, HP installs tons of crap software to track you and sell you products, Dell has even warrantied a computer I bought second hand, take that with a grain of salt)

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