Question about Gigabyte GA-7VRX Motherboard

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ESD noise (fluorescent lamp power-on) also wakes the computer from standby

EMI noise (fluorescent lamp power-on) wakes the computer from standby

You imagine every time you turn on the light-the computer starts breezing its fans..

maybe some EMI filter/cap somewhere onboard has gone bad,so MBO thinks it is a signal from wake-up connectors.Just an idea.

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  • ferrante Nov 12, 2007

    Thanks for the idea - I made observation there:

    the second computer is rock-solid even with wake-up modem and lan enabled.

    (The light is fixed up on the ceiling and unmovable)

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Make sure Wake on function turned off, Wake on LAN, modem ring...(Bios Setup)
Use a surge protector anyway!!!
Conect the lamp to a difrent place away from the computer.

You can buy expensive filters too or just buy a new lamp.

If you can try the lamp with another computer, make sure whats the real problem!

Posted on Nov 11, 2007

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Clicking noise from rear of set and no picture os sound and will not respond to controls .


This is a protection circuit that prevents the tv from coming on (to stop damage of the components) ....you need to check your voltages off the power supply and make sure they all read well (EX: 24v12v5v etc). Also look for popped capacitors that would make the values lower than need be for the tv to power on properly.


When you find the problem, replace the capacitors and then the other components if needed!


Please rate if this helps! :)

Mar 07, 2011 | Samsung Televison & Video

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Does LCD monitor emit UV light?


The monitor use Fluorescent lamps (CCFL) to light up the screen, same kind as used for the home fluorescent lamps, no different, they are just smaller in size and lower wattages. Do you use fluorescent lamps in your house to be Green, if there are conflicting info then they would have banned fluorescent lamps a long time ago and will not be banning regular light bulbs in the future.

May 22, 2010 | Proview PL913S 19" Flat Panel LCD Monitor

1 Answer

17 inch LCD Monitor: Model M17GKA . When waking computer from standby m...


Dose it do the same with other PC, need to narrow down the problem.
Most common failures in the LCD monitors are bad capacitors (bulging top/seal or leaking) in the power supply, failed inverter circuits (blown fuse, shorted transistors, shorted/open transformers), bad lamps (poor solder connections or worn out lamps). You will need to open it up and inspect the inside, see example of failed monitors to get some ideas what to look for: http://s807.photobucket.com/home/budm/allalbums
Post back what you see inside so we can guide you further and it will help out other people in the future also.
http://en.wikipedia.org/wiki/Capacitor_plague

http://www.badcaps.net

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1 Answer

My HP Media Centre Model M7460 wakes itself up overnight when left in Standby Mode. I have disabled everything that I can think would be waking it up - but the probelm persists During the daytime - in...


It is possible that you have a CA Voltage problem... so, do you have overvoltage protection at power supply?. though you should remove jumper from "boot block" pins (or similar) in the Motherboard (HP computers usually have it). This surely willl help you.
Greetings!

Apr 19, 2010 | HP Computers & Internet

1 Answer

Hi I have an MSI 865GM2 Motherboard and Logitech wireless mouse and keyboard. I want them to be able to wake the computer from Standby or hibernate, but cant get it to work. There is no power management...


Yes, you need to go into the BIOS at boot time. Look for a set of "Wake on" settings (LAN,Modem, Keyboard etc). Probably under either Chipset or Integrated peripherals.

Nov 30, 2009 | MSI 865GM2-LS Motherboard

1 Answer

Screen remains dark


1.Try to increase the Brightness of the LCD screen.
Press the Fn key, and tap the F7 key.

If this does not increase brightness, or dims later on, I suggest you have a bad Backlight Lamp, (Bulb), or Inverter.

Backlight's are usually the first to go, then the Inverter. However,...although Backlight's are cheaper in cost, they are much harder to replace.

The Backlight is located in the side of the LCD screen itself.
An LCD screen cannot give off enough backlighting by itself. It needs an external source such as a Backlight Lamp.

The Backlight Lamp is a CCFL. Cold Cathode Fluorescent Lamp. (Resembles a real small fluorescent tube)

To briefly illustrate where the average Backlight is located, and what an average Backlight looks like,

http://www.laptopparts101.com/screen-backlight-ccfl-lamp/

This shows you how to access the Inverter, ( Board), and what it looks like for the Toshiba Satellite M35X series of laptops,

http://www.irisvista.com/tech/laptops/ToshibaM35X/Satellite-M35X-display-1.htm

[Click on Page 2:: at the bottom of this page. Step 9 and 10 illustrate. You can click on the photo to enlarge]

The Inverter supplies power to the LCD screen, and to the Backlight Lamp.

To access the Backlight Lamp, as you can see, you have to carefully separate one side of the LCD screen, itself. The LCD screen is composed of layers. One mistake here, and you are buying an LCD screen. Average cost? $125 to $225. Depends on where you buy it.

Access to the Inverter, (Board), is much simpler.

BEFORE anyone should attempt this, there are guidelines that should be adhered to:

1.ALL electrical sources should be removed. Remove the AC adapter, (Charger), and the Battery.

2.The tech should wear an ESD wrist s-trap, and have the alligator clip attached to a good ground source.
(Electro Static Discharge. Your body carries Static electricity. Static can burn out the hardware components in a computer, in a flash. You probably won't see it, or feel it.

POOF, and you'll never know why your computer doesn't work anymore!
Wearing a cheap $6 ESD wrist s-trap, and having it connected to a good ground source prevents this. I connect to an empty desktop computer case)

3.Have a multi-compartment, clean container, that you can label each compartment, for the various screws.
Some screws look Very much alike. You install the wrong screw, and you'll strip the threads out in the screw hole, or the screw. {Or it will be stuck in halfway, and twist off when you take it out. All sorts of fun? stuff}

4.If you need to, take notes, make drawings as you disassemble. May make it easier when you go to re-assemble. You may want to use a digital camera, and good lighting.

Nov 27, 2009 | Toshiba Satellite M35X-S1142 Notebook

1 Answer

Dell SE198WFP 19" LCD won't come out of standby


I went into the BIOS (with F2 during restart) and changed a value -- IIRC it was called something like "power management scheme" -- from the default S3 to the other choice, S1. Now the old Dell XP Dimension 2350 will go into and out of Standby correctly and the new SE198WFP 19" LCD will too.

Oct 05, 2009 | Dell SE198WFP LCD Monitor

1 Answer

No signal after standby/power interrupt


check in BIOS to see how wake up is set
Also right click desktop go to properties/settings/advanced check setting for wake up

Jul 22, 2008 | Diamond Multimedia Stealth S60 RADEON...

1 Answer

What are the white balance modes available with the camera?


The following White balance settings are available for the A2: AUTO, Preset (Daylight, Tungsten, Fluorescent, Shade, Cloudy, Flash and Custom1 to 3) The following slight adjustment is possible: * At setting Daylight, Tungsten, Shade, Cloudy and Flash: +3 to -3 (one unit is approximately equal to a 10 mired shift.) *At fluorescent lamp setting: equivalent to 7 fluorescent lamp(3 -wavelength colored fluorescent bulb, 3-wavelength white fluorescent lamp, 3-wavelength neutral white fluorescent lamp, 3-wavelength daylight fluorescent lamp, white fluorescent, neutral white fluorescent, daylight fluorescent lamp)

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1 Answer

What are the white balance modes available with the camera?


The following White balance settings are available for the A1: AUTO, Preset (Daylight, Tungsten, Fluorescent, Shade, Cloudy, Flash and Custom1 to 3) The following slight adjustment is possible: * At setting Daylight, Tungsten, Shade, Cloudy and Flash: +3 to -3 (one unit is approximately equal to a 10 mired shift.) *At fluorescent lamp setting: equivalent to 7 fluorescent lamp(3 -wavelength colored fluorescent bulb, 3 wavelength white fluorescent lamp, 3 -wavelength neutral white fluorescent lamp, 3-wavelength daylight fluorescent lamp, white fluorescent, neutral white fluorescent, daylight fluorescent lamp)

Sep 15, 2005 | Konica Minolta DiMAGE A1 Digital Camera

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