Just recently installed cable high speed internet last week..worked fine until yesterday. Ive checked to ensure the monitor connections and other power wires were all connected properly. It start up like it powering up (Windows XP screen, etc) then just stops at a blank screen.
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Re: Dell Desktop, wont power up..monitor goes blank
Remove the cable. Keep pressing F8 while you power on the system and choose safe mode, press enter. Screen will roll up a few pages and stops for a while. wait a few minutes. windows will start in safe mode Scan for viruses. Restart. It is a virus problem
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Some types of memory will only work as matched pairs, try only using two sticks of the same type, Otherwise check your memory and graphics card are seated properly, remove the power cable to the monitor for a few minutes then plug in, check you haven't loosened the monitor cable. Do you get anything onscreen? if you get start up then check BIOS see what memory it reports & the graphics settings. Its most likely something loose or the memory.
Does the monitor go out completely, no power? Or just lose a signal? Check ALL cables, AC and Monitor cables. Could be a Graphics adapter issue or Monitor , try another monitor.Your computer has a few miles on it , right? You could buy a PCI Graphics card if the monitor is OK.
Check to see if this problem follows in safe mode. Reboot and when the Dell splash screen comes up tap F8 until you see the multiboot options. Scroll to "safe Mode with Networking" let the machine boot up and see if you have a screen. If you do, right click on the desktop and set the resolution to 800 X600 and reboot normally. Usually when a screen goes blank in normal mode but shows up in safe mode means you have an incompatible resolution for the monitor or graphics adapter. This may be a driver issue or hardware. If the screen boots up in normal mode at the lower resolution, then try and go to properties again and bump the resolution up a bit, if it blanks again, try to go online and update the driver for the graphics chip.
Sounds like onboard video might have gone out. 2 suggestions, if the system is still underwarranty, send in for repair. If not, suggestion would be to open the case, and confirm type of slots AGP, PCI, PCI Express, and purchase a video card on the type to install.
with recovery or win cd in drive restart pc and do a format
when prompted hit enter to start with cd
then choose option for new installation then when asked to delete selected partition choose option to delete
then just read and follow instructions
just try running the Test on the monitor(monitor self test) ie disconnecting the video cable of the monitor & leaving the power cable connected & then see if u r getting the red,blue,green multicoloured bard moving on the screen or not,if yes then the monitor is fine otherwise the monitor is bad.
See lets isolate the fault...As u have checked the monitor cable is fine,the monitor is fine and the video card is also fine..I believe you have tried these 3 components on another pc and it has worked fine..Rit? Now the last thing is first download the latest BIOS update (Find the current BIOS version number,Press F1 when Pc starts,on Main menu u can find BIOS number ; From ur other PC,check the Internet for BIOS or ROM updates keeping in mind the BIOS version number u have noted down ;Download and install the BIOS updates to a CD ..copy the BIOS files to the hard disk, and then restart the computer with the CD still in the drive...That should work..2ndly,I would update my video card driver from the internet using my other computer in the same way..
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.