Monitor loses signal for random reasons

March 24, 2011 at 23:55:46
Specs: Windows 7, i7-860 2.8GHz/6GB
I am having an issue where my monitor stops receiving signals (goes black and monitor light turns from green to amber)
I am assuming that when I am charged (statically) and I try to plug in a USB device or headphone/mic into my computer, the screen goes black.
Both the front panel and the back (MOBO) USB ports are effected, as well as the headphone/mic jacks.
The monitor goes black, Fans, and LEDs are still on, but the monitor light changes from green to amber.
Ive checked my graphics card about 3 times to see if it is seated correctly. It is. Should I pull it out and dust it?
This issue also happens when I shock my light switch, or I turn my other computer off in the other room (Same circuit). The wiring in my house is fine, hence why this only happens on this computer, and not the other one.
I have the computer resting on an anti-static mat, but that doesn't seem to help.
Windows tells me my graphics card driver has failed a ton of times, but everything is up to date. It asks me to give more information about the problem and I get sent to an HP laptop site asking me if my laptop was plugged in at the time of the occurrences.
I got a new external drive because I don't know how much damage is occurring, and as I was setting it up, I plugged the USB device into the back and plugged in the power cable, then touched the other end of the USB cable to the external drive's port and the monitor blacked out.
I should say that when music is playing, it will continue for another 15-20 seconds before the music starts to "skip"
Everything is up-to-date.
Everything was working fine until I moved my computer from one end of the room to the other (everything is seated properly)
All of my electronics are plugged into a high end surge protector.
I am confused, please help me, I have been dealing with this for 8 months

System Specs:
Win 7 SP1 64bit
Gigabyte P55-USB3
6GB Ram
Radeon HD 5750 1GB
i7-860 Lynnfield 2.8 GHz
650W Corsair PSU


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#1
March 25, 2011 at 00:04:50
the issue in the monitor LOT section

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#2
March 25, 2011 at 00:38:20
ganesank123..... I dont understand, nothing is wrong with my monitor, in fact I have 2 of them, one much newer than the other, and both go black..

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#3
March 25, 2011 at 05:05:27
My first thought is that your outlet (house) has a bad ground, or you quality surge protector is having a problem. I know you said your house wiring is OK, but if you have not, use a plug in circuit tester on the outlet you use for your computer. Try everything in a different room, try a different surge protector, try a different power cord to the computer (eliminate possibilities). Check that the voltage switch on your power supply is fully set to the correct voltage (110V for US) and not partially off a little (do this when unplugged for safety). Try different monitor cords (power and signal) even though this is very unlikely. Check that all connectors inside your computer are properly seated and no wire is running by a sharp edge of metal.
After that, that leaves your power supply or your motherboard and I would first check that it is not the power supply. If you have another power supply, or can borrow one from another computer or a friend, then try swapping it out.

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


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#4
March 26, 2011 at 12:56:27
I dont want to count my chickens before they hatch, but I have switched around a cable and attached some speaker wire to the back of my case and have grounded it directly, which seems to be working. I have shocked my lightswitch, turned off my other computer, plugged in usb's and my headphones (all things that caused the problem) and I havent had the problem yet. so hopefully I wont have to deal with this anymore...*knock on wood*

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#5
March 27, 2011 at 05:40:36
If you can purchase reasonably or borrow one of the plug in circuit testers, I think you will find that the outlet or surge protector has a bad ground.

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


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#6
March 27, 2011 at 22:42:34
circuit tester says both my wall and my surge protector are excellent.

I am now trying to see if my computer will have issues on a different circuit than the other computer. Maybe there is just too much power being drawn through the one circuit
and the speaker wire and the switching of the cable accomplished nothing,
I am beginning to feel like Dr. House, trying to figure out whats wrong with a patient that has extremely bizarre symptoms.


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