I have a
Elitegroup L7VMM2 Motherboard that powers up but has no video.could you plz help!!!! i am using a amd 2400+ processor. and pc 3200 ddr ram (2) gig. and a western digital 300 gig hard drive. and 430 watt powersupply. and a dvd-rom disk drive and a dvd-rw disk drive.
Have you heard any beeping sound when your CPU is powered on? Try to re-insert your memory (RAM) or clean those pin when you unplug the Memory by using a eraser then re-insert it again if nothing happens it either your mainboard is defective.
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What type of Video Card are you using? What are the power requirements of the Video Card? Also, you do not have to disable the VGA jumper to use a video card. Try re-enbling the VGA jumper and booting.
Make sure the monitor is pluggen in. Make sure the monitor is connected to the PC. Try another known working monitor. If you have a video card, with the power to the PC turned off and the power cord unplugged from the PC , pull the video card out an put it back in , this will reseat the card it may help. If you do not have a video card and think it is your intergrated video, try install a video card.
Disconnect the AC power.
Physically remove the "add-on" video-card,
to force the motherboard to use the "integrated' video-card.
Connect the AC power,
and boot to see if any video is displayed.
Disconnect the AC power.
Temporarily disconnect the power-cables and data-cables
from the disk-drive, and the CD-drive.
Remove any other "add-in" cards (sound? TV tuner? network?)
If there's more than one stick of RAM, reduce it to one stick.
Connect the AC power,
and boot to see if any video is displayed in this "bare-bones" configuration.
Try the add-in video-card in another computer, just to confirm that it still works.
I can only cover generic test procedures since I do not have the specifications of your motherboard.
You will need a large antistatic bag or antistatic mat plus a ground strap and a power supply checker.
Check the power supply using a power supply checker. Disconnect the power supply unplug the power connector on the mother board and plug the connector into the power supply tester. If you do not have a power supply tester let me know how many pins are on the connector and I will tell you how to test it with a meter. If you have any voltage not present replace the power supply. If you do not have -5 volts it was used for ISA slots and was completely removed from the ATX standard in 2004.
Do you have an onboard video card? If you do is that the video output you intend to use or a external video card?If you have onboard video connect the monitor to the onboard video output. Disconnect the power supply cord from the computer and attach a ground strap from your wrist to the bare metal of the power supply. The down side of static damage to components is you do not always see the damage immediately since static can weaken components causing future failure. Remove all cards from the slots except the video card if you do not have the onboard video.Be careful to touch only the edges of the boards and place them on the antistatic mat in the antistatic bag. Plug the power supply back in and see if the Power On Self Test (POST) displays the boot process on screen or beeps are audible. The error beep codes can change from the BIOS types but these are a few generic ones.It would be best to check your motherboard manual for a complete listing of error codes.
1 short beep – System is OK
No beeps – Bad power supply or system board
Continues beep – Memory error
1 long two short beeps - display adaptor
If no video is displayed and no beeps can be heard, turn the system off by pressing the power button and unplug the unit. Verify the ground strap connection on your wrist and the bare metal of the power supply.Carefully remove the memory sticks handling only by the edges noting which slots they go in and which module was taken from which slot and place them on the antistatic mat or in the antistatic bag. Plug the power supply back in and see if a continues beep is audible. If yes, power off the unit and unplug the power cord. Put only one memory module in the first slot but do not put the same module in the same slot (swap them)if you have more than one module.Restore power to the system and see if the continues beep is no longer heard and you see video.If you see video and no continues beep than power the unit down and unplug the unit. Do the same for any other memory module which will help you determine if any modules are bad. This test is not a complete test but if any modules are dead you can identify them. If no video and no beeps the motherboard is the suspected problem.
If you have video and one short beep on power on and all memory checks good. Power down the unit and unplug the power to the power supply inset one of the removed boards and try to boot the system to see if you still have video. If you do power the system down and repeat the same procedure for each card. If you do not have video suspect that card is bad.
Good luck and be careful to always touch the bare metal of the power supply with it unplugged before reaching inside the computer and touching any boards.
No video and no beep on power up. Your video card is failure and internal speaker is lost, so You can't hear beep sound. or may be motherboard problem. You insert a external Video Card in PCI slot, if video is ok, so your video chip is damaged.
On board video will likely be disabled if you plug in another video card.
Newer video cards require a connection from the power supply to provide additional power not available on the PCI bus to drive the GPU. It is possible that your 350W power supply does not have enough juice, or the rail is bad.
First guess, check the video card for a power connector. Second, check the power supply. Lastly, if you remove the PCI video card, onboard video will likely work again.
did you plug up toe power to the video card, the problem seems to be that the video card is getting no power, if the power is hooked up properly to the video card, the your power supply is probably not powerful enough.