Question about Dell OptiPlex GX270 PC Desktop

4 Answers

Monitor goes blank during uptime

The problem is the follows: I can be working on the computer and the monitor goes blank. The computer still receives power as the CPU Fan and PSU fan are still running. There is however no activity on the hard disk, network (tested by pinging the machine) etc... In Safe mode this does not happen. This happens at random intervals, most often just after the login screen. I am connected to a network with +60 computers. Antivirus and firewall are working and up to date. Using Mcafee by the way. I have tried re-imaging the machine and nothing happens. As a matter of interest this problem occurs on 3 identical machines. They are Dell GX270's. I also recently noticed that if I send the machine into sleep mode, upon wake up exactly the same thing happens. The only solution is to hold the power button for a few seconds and then switch the computer back on. After a while it happens again. When this first started to occur it wasn't very frequent. After a few months of using the machine it becomes unbearable. The machines are running Windows XP Professional SP2. I have tried updating certain drivers with no success. I Have played with resolutions etc... I have stopped services, nothing. I have changed monitors, nothing. I tried swapping memory and nothing again. I have run several tests on teh machine and everything seems to pass successfully. I have updated the BIOS of the machine with no results. I have played with power settings and again nothing. I am really stuck. Help would really be appreciated. I doubt that its hardware realted only because it happens on three machines. My only thing i believe this problem could be realted to is conflict in software somewhere, but again I have no idea. These machines are a few years old. Running 256MB of ram. Its also not hard drive related. Tried swapping hard disks and got the same problem. What other information could I possibly give you?... Hmmm... Can't think of anything right now. Thanks in Advance Shawn

Posted by on

4 Answers

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 2 Answers
Re: Monitor goes blank during uptime

I had the same problem - was the motherboard capactitors.
Dell extended the warranty on those motherboards because of the fault until January 2008. Unfortunately I only found that out in February :-(
Still, I bought some replacement capacitors from replaced the faulty ones on the motherboard and all is now running sweetly.

Posted on May 22, 2008

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: Monitor goes blank during uptime

Dell will warranty a new motherboard at N/C for the GX270 up to 5 years.

Posted on Nov 26, 2007

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer
Re: Monitor goes blank during uptime

Hi is there anyway to fix the problem without buying a new one? It was working just recently. When i look at the back diagnostic light, the C lights up Yellow while A B and D are green. Does Dell give extended warranty on these since their products are a POS. Dont really have the money right now to go out and get a new one. I'm not sure if it is the capacitor issue although it could be.

Posted on Sep 19, 2007

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An expert whose answer got voted for 500 times.

  • Master
  • 2,961 Answers
Re: Monitor goes blank during uptime

Seems as though you have done everything, although you say you have played about with the power settings, in power options ensure that 'Turn off Hard Disk', hibernate, monitor and system standby all set at never. In some bios settings the hard disk is also able to be set to power down when not in use, worth checking. Sorry to not be of much help, but short of being something silly like a screen saver kicking in, but working incorrectly with a graphics driver and the screen resolution, i'm lost for a solution.

Posted on Mar 20, 2007

Add Your Answer

0 characters

Uploading: 0%


Complete. Click "Add" to insert your video. Add


3 Points

Related Questions:

1 Answer

I have an hp pavilion dv5. When I power it on the computer starts up but the monitor doesn't come on. And then it does this series of beeps. Beep beep beep. It does that series 5 times

Before you begin
Check the following items before using the steps in this document:
•If you have a flat panel LCD monitor, unplug the monitor power cable, wait about 30 seconds, reconnect the cable and then turn on the monitor. This resets the electronics on the monitor.
•Make sure the monitor has power - the light on the monitor is on. If the light on the monitor is off, the monitor does not have power. Connect it to a different power outlet.
•If the monitor has a detachable video cable, obtain a second monitor cable for testing purposes in case the cable is bad.
•Disconnect all connected devices except the mouse, keyboard and monitor. This includes thumb drives and camera-type memory cards from card reader slots.
With the devices disconnected, restart the computer. If the computer starts and the monitor now displays a picture, a device is preventing the computer from starting. Update the BIOS to resolve this issue.
Step 1: Connect the computer to another monitor
Connect another monitor to the computer to determine which device has the problem (the monitor or the computer). This step is very important to help you determine if the problem is coming from the computer or the monitor. If necessary, temporarily connect the computer to a friends monitor for troubleshooting purposes.
After the monitor is connected, turn on the computer and the monitor. What happens?
•If the newly attached monitor does not display anything , disconnect the cable and continue at Step 2: Is the video connection damaged?
•If the newly attached monitor displays the first startup screen(s) but then goes black, there is a problem with Windows starting. Skip to step 5 .
•If the new monitor works , the original monitor or its cables are faulty. Do the following:
1.Replace the monitor power cable.
1.Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
1.Replace the video cable.
Turn on the monitor. If the monitor displays an image, you are done. If the monitor remains blank, continue using these steps.
1.If the monitor does not work after replacing the cables, replace or service the monitor.
Step 2: Is the video connection damaged?
Inspect the video cable and video connectors for damage. Check for sharp bends or breaks in the cable and bent or broken pins at the connectors. With the monitor and computer off, try to straighten bent pins with a small metal tube, like the tip of an empty mechanical pencil or the tip of a retracted pen.
Figure 1: Video connector
If you had to straighten any pins, reconnect the monitor making sure that the video cable is firmly connected and then turn on the computer and monitor. If the display is still blank, continue to the next step.
Step 3: Resetting and updating the BIOS
You can use these steps even though you will not be able to see anything on the monitor.
In case an item was changed in the BIOS, such as the primary display device setting, use the following steps to reset the BIOS back to its default configuration:
1.Turn on the computer and repeatedly press one of the following keyboard keys. Press the key about once every second for 5 seconds after turning the computer on.
◦For HP and Compaq computers that came with Windows 7 and Vista, press F10 .
◦For HP and Compaq computers that came with Windows XP, press F1 .
◦For Compaq Presario desktop computers built prior to 2002, press F10 .
1.Wait another 5 seconds.
1.Press the F5 key. This restores the default settings of the BIOS.
1.Press the Enter key. This accepts the changes.
1.Press the F10 key. This saves the changes.
1.Press the Enter key. This saves the changes and exits from the BIOS.
1.The monitor should display the first screens received from the computer (the logo screens). If not, find and download the latest BIOS update if one is available for your computer.
1.If a BIOS update was not available or the monitor is still blank, continue to the next step.

Jun 11, 2010 | PC Desktops

1 Answer

When using computer for about 10 min, monitor goes blank with an error message of"No Input Signal" then computer rebuts several times. Any idea's?

Its possible that your computer maybe having a driver conflicting with your monitor. My suggestion would be reinstall the software that came with your monitor. If you don't have that go to the companies website that produced the monitor and download the newest monitor drivers.
As well for an extra double check, make sure that all wires connected to the monitor and the computer are in place.
(might check your monitors energy saving setting)

May 09, 2009 | PC Desktops

1 Answer

Monitor goes blank after seeing XP during boot up.

did u replace the video card with the same kind of model ? i guess yes ... when system starts hit the f8 key and than go in to safe mode ... mouse wont work so use arrow on the keyboard .. and in the safe mode just log in to admin account if available or login to ur account and see if that still happens .. and if it doesnt ... remove the drivers for the graphic card from add and remove programs and restart the system and go in the normal mode and than install the drivers again ... and if the display disappears in the safe mode or u have install a different graphic card than ... reseat the memory cards and that should resolve the issue .... if that doesnt work out when the system starts hit f1 and stay on the BIOS screen for 30 mins if the system doesnt loose display than u need to reinstall OS ... that will surely work out ... the resolutions given above if u follow them correctly u will have a working system in no time

Feb 07, 2009 | HP Pavilion a305w (DM181AR) PC Desktop

2 Answers

Monitor displays breifly then goes to blank screen

If tried the monitor on two other computers with the same result -- definitly your monitor is faulty. Take it to the repair shop. To make double sure, run your computer with another monitor. If everything is fine now; you can blame the monitor.

Dec 17, 2008 | Dell Dimension 4600 PC Desktop

1 Answer

My screen goes blank immediately after initial DELL startup image

You can either try to reset the BIOS, or have the restore cd fix it for you. By the way, what does the message say?

Nov 27, 2008 | Dell Dimension B110 PC Desktop

3 Answers

Emachines model 780 monitor comes on for one second then goes blank

CANNOT COMPUTE!!!! NEED MORE DATA! Is your monitor the problem or the computer? Try connecting the monitor to another computer. You can also try connecting a laptop with an external video adaptor to the monitor to test it.

Oct 12, 2008 | E-Machines eMachines Desktop PC

1 Answer

Relisys Monitor model TL528A - Plug it in, screen is blank panel light is yellow. push ON button and I get a 5 second message stating: OUT OF RANGE HS: 53.5 KHz VS: 84.8 HZ WORK RANGE ...

It normally means that you have connected the monitor to a computer whose resolution and frequency are beyond the range that this monitor are capable of.

To fix this, you can do one of two things: reconnect the old monitor and reduce the resolution to 800 by 600, which every monitor can handle and then reconnect the new monitor and change the resolution settings again. by default, Windows will restrict you to only settings that the monitor can handle. The second option would be to start your computer in safe mode (F8, just before you get the windows screen during boot). and change you monitor settings that way, rebooting afterwards.

Jul 10, 2008 | PC Desktops

1 Answer

Blank monitor


Jun 30, 2008 | IBM NetVista X41 PC Desktop

2 Answers


Did you recently change or install a program that would affect the resolution and card output? Try booting into safe mode by holding the "shift" key during boot. From there right-click on the desktop and hit 'properties'-> 'display properties' -> 'settings' , check your resolution and drop it to 800x600 and then reboot. If everything goes back in normally make sure you have the right windows drivers for your video card. You can also check the driver version and settings while you're in safe mode. Sometimes the windows update drivers can act screwy and I would recommend getting them directly from your card manufacturer.

Aug 19, 2007 | Dell Dimension 4600 PC Desktop

Not finding what you are looking for?
Dell OptiPlex GX270 PC Desktop Logo

471 people viewed this question

Ask a Question

Usually answered in minutes!

Top Dell PC Desktops Experts


Level 3 Expert

5660 Answers


Level 3 Expert

18258 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Are you a Dell PC Desktop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides