Question about ASUS AX800 XT/TVD 256 MB (GDDR3) Graphic Card

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No display showing

I turned off my pc one night.and the next day when i turned it on, there was no display showing. i checked the internal graphics and it was ok. i even checked with a new graphics card and it was ok too. i didn't change the bios or change any settings in windows. what seems to be the problem?

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Re: no display showing

How did you check the graphics?
Laptop or desktop?
Have you got access to another monitor you can try?
This could be a bad monitor' Any post screens at all?

Posted on Oct 19, 2007

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How do you fix a white screen for a dell Inspiron 1100 lap top?

White LCD screen in a Dell Inspiron 1100 Notebook PC?

1) Loose connection of the video cable TO the LCD screen, and/or loose connection of the video cable TO the motherboard.

2) Bad LCD screen

3) Bad motherboard. (More specifically a bad graphics chipset)

To start the diagnoses to find out what the problem is, you will require an external monitor.

This monitor can be a CRT monitor (Looks like a small TV), or a flat LCD screen monitor that has a VGA cable.
(A CRT monitor is a VGA monitor also)

Example of a VGA cable, and a VGA port, (Connector on computer),

The VGA port is on the back of an Inspiron 1100 Notebook PC.
It is Blue in color.

A) Laptop OFF, monitor OFF. Connect the VGA cable of the external monitor, to the laptop's VGA connector (Port)

B) Turn the external monitor on. If a CRT style allow it warm up.
Turn the laptop on.

By default, (Factory setting), the external monitor should show the graphics of the laptop.

IF Not;
There are 3 options available,

1) Internal monitor of the laptop - ONLY
2) Internal monitor of the laptop, AND external monitor
3) External monitor - ONLY

If there is NO display on the external monitor, (Display; To include a white screen);

A) Press the Fn key, and hold it down. Now tap the F8 key. (F8,CRT/LCD)

Still no display on the external monitor? Press, and hold down on the Fn key, and tap the F8 key again.

IF, the external monitor shows a white screen, Stop.
You have a bad graphics chipset. Option is to replace the motherboard.

IF, the external monitor shows graphics just fine, diagnose further.

A) Look to see if the Video cable is plugged in tightly to the motherboard, AND connected tightly to the LCD screen.

Dell Support > Inspiron 1100 Notebook PC > Service Manual,

Click on - Display
Under the heading - Display Assembly, look at the partial 'photo' under the number 8.

On the left side where it shows two Philips head screws removed, is the Video Cable. Pinkish wire wrapped around a Light Blue wire.
Look at Number 9.
The display-feed flex cable is the Video Cable.

Make sure it is plugged in tightly to the motherboard.

Now go down to Number 10.
In the exploded drawing the number 7 points to the Video Cable.
(display-feed flex cable)

Shows the Video Cable disconnected from the motherboard, and going up to the back of the LCD screen.

Scroll down to the heading - Display Panel. This shows the connection of the Video Cable to the LCD screen.

The Video Cable runs through the left Hinge Cover.
Repeated opening, and closing of the laptop, may have damaged the Video Cable.

Observe the sheath of the Video Cable. (Outside wrap)
Does it appear damaged? Pinched? Torn?
Even if it does not, I suggest performing a continuity test with a multimeter.

Multimeter's function knob is set to Ohm's. (Omega symbol)
Positive probe lead (Red) is touched to one end of a wire going through the Video Cable.
Negative probe lead (Black) is touched to the other end of the wire.

Do not be concerned at this time with the Ohmage. Concern is to see if ANY reading comes up, not how much.

Perform a continuity check on all wires in the Video Cable.
(An economical, yet decent enough multimeter for this test, can be purchased for around $5 to $12. A multitude of store carry them. An auto parts store is but one example)

Video cable checks out?
The next suspect is the LCD screen.
However, read on.

An LCD screen does not produce enough light by itself. It needs an additional light source.
A Backlight is the additional light source.

A Backlight is a CCFL.
Cold Cathode Fluorescent Lamp.
Similar to Fluorescent lighting used in homes, and businesses, but on a MUCH smaller scale.

An Inverter (Screen Inverter) is used to convert the power (Electricity) from the laptop, for the LCD screen, and Inverter.

90 PERCENT OF THE TIME the fault is the Inverter.

Example of a screen inverter for a Dell Inspiron 1100 Notebook PC,

An expensive (Read - Sensitive) multimeter can be used to check a screen inverter. Not something everyone has laying around, or access to. In this case I would suggest replacing the Inverter.

(The screen Inverter is also easily accessed, AND much cheaper in comparison, than the LCD screen. Again, 90 percent of the time the fault is the Inverter )

IF, the Inverter does not cure the problem, then the problem is the LCD screen.

Check the display with an external monitor. Display checks good, run a continuity check on the Video Cable.
Video Cable checks out OK, go to the Inverter.
Inverter does not cure the problem, the problem is the LCD screen.

BEFORE beginning to disassemble;
Remove ALL power to the laptop. Remove the AC adapter (Charger), and Battery.

Observe Anti-Static Precautions.
(I would also advise using an ESD wrist strap, and connect it's alligator clip to a good ground source.

Average cost of a decent ESD wrist strap, is around $3 to $6.
I connect to an unpainted surface, of the metal frame of an open, empty desktop computer case.
{Electro Static Discharge)

Use a multi-compartment container for the various screws you will remove.
label each compartment for the area the screw/s come out of.
If no multi-compartment container is available, substitute with a clean egg carton.
Label each egg holder.

SOME screws look VERY similar to other screws.
Do Not mix them up.

For additional questions, or to have me explain anything I have stated here, post in a Comment.


Dec 29, 2011 | Dell Graphics Cards

1 Answer

Installed AGP fx5500 video card into my pc. Turn on pc and monitor Light next to turn on button Stays yellow and doesn't turn green. Is card garbage?

First eject the graphics card from motherboard and try to get display from on board display port. If display comes from it then there is problem in your graphics card or in card slot. And also try to use the card on any other pc because some time due to electric fluctuation setting have changed and it did not work on your motherboard So its better to connect it on any other motherboard or pc.
For any other help or to thank me you can also mail on my email

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Take the card out of the camera, and re-insert it. See if you get the same error. If so, it has likely been corrupted. Reformatting it may correct the error, but you will lose whatever was on it, unfortunately.

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Hi Ev, you can go to this link & allow NVIDIA to check you're 8500GT card is up to date.

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Once a picture tube gets magnetized it may display the same rainbow effect on another PC. Do you have anything close to it that could be causing a magnetic field, like large speakers? If so move them farther away. A rainbow effect is definately a degaussing and/or a magnetic field interferrence problem. If the degauss circuit is functioning properly leaving it turned off for a few hours (so it cools to room temp internally) and then turning it on should make it degauss. It is possible that the degauss is not powerful enough to rid the tube of severe magnetism, in which case you need to use a manual (handheld) degausser.

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Dear cgb1981; A lot of times graphic cards do conflict if one of the drivers gets corrupted. Try this: Reinstall the driver for the 7600gt card from the CD it came with. Most CDs will Auto-run upon insertion into the drive. It will detect the 7600gt. Click to install driiver. If that doesn't work, check BIOS and choose DEFAULTS for all screens. But the driver is the first culprit. Good luck.

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When you power on your computer do you hear any system beeps from the PC speaker? When the computer is turned on it will run through a system check and one of the things it checks for is the presence of a working video card. One beep typically means everything checked out ok and your graphics card is working and it will continue to boot. If you are getting past that initial test I would next look at the monitor and see if it can handle the signal that is being sent to it. Are you not getting any of the boot up text display?

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