Question about Mercury P4VM800M7 Motherboard

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I have desktop computer with mercury & there is no display on monitor even no boot screen in coming up. I have removed the battery & RAM and reinstalled it but problem is not solved.

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When you connect the AC power, does the fan on top of the CPU move, or even just "twitch" once?

When you press the ON/OFF button, does the fan spin?

If not, then your power-supply is the culprit. Replace it.
Or, take the computer to a computer-store, and have them
temporarily connect a different power-supply, to trouble-shoot.
If you buy a new power-supply from them, they might even install it for FREE, if you ask.

Posted on Sep 09, 2010

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1 Answer

The yellow light comes on inside but the computer won't come on neither does it beep?


First remove any power cables and batteries(if laptop) from your system and hold down the power button for 15 seconds.

Plug the power cable back in & attempt to boot.
If this does not solve your problem then you will need to remove all non-essentials from your system.

If laptop, this simply consist of battery, ram, optical drive & any other removable bays or devices. Unplug all cables except the power cable & attempt to boot.

If desktop, you will need to remove any cables plugged into your computer except keyboard, mouse, power, video, sound, & network cable. Open the case & remove any PCI cards, except video cards, unless you have on-board video, unplug the data & power cables going to the optical & hard drives. Now attempt to boot. If you have no luck you can remove your RAM sticks & try again. If you get an error beep warning you about no ram then you might have a bad ram stick. If none of the above works then you may have a bad power supply or motherboard. Power supplies are pretty easy to test with tester or use a spare.

Jul 16, 2012 | Dell Computers & Internet

1 Answer

Installed RAM and now monitor has no display. I


The splash screen with the LG Flatron logo is the monitor's splash screen not the PCs.
The machine is NOT booting up the splash screen is the monitor coming on.
Remove the 1Gb stick an see if the machine performs normally.
If it does then power it off, remove the power cord and CAREFULLY reinstall the new stick.
If it fails to boot you may have a defective memory module.
If the machine fails to boot with the new stick removed make sure you have the original memory seated properly and all cables securely attached

Jan 03, 2011 | EliteGroup Computers & Internet

1 Answer

I have an Emachines W3609 desktop with windows vista. One day i powered it on and the fan ran hard and i got three beeps and no display in the monitor. I went into the case removed the ram and found 1 ram...


i seem the power supply gone bad, it is hard to say what is the problem actually, you need to check all of your devices(processor, ram, video card, motherboard and power supply) to some other system one by one for confirmation.

Nov 05, 2010 | Computers & Internet

1 Answer

How do you adjust the notebook monitor, I boot up my computer but the screen stays black??? I can see the Windows startup but its really faded in the background and then can't see anything


1. Check your power cord & adapter.
2. If its working then check the battery, reseat the battery & check.
3. If available then check with another battery
4. If no, then remove the battery & switch on the PC in AC mode.
5. Check if battery charging indication or AC power on indication is glowing. if not then need to change ur motherboard.
6. If indication is OK, but could not power ON then check ur RAM for any loose connection or dust. clean & reinstall.
7. If still no display, connect an external monitor, check if display is comming.
8. If Display is coming then your LCD need to replace.

Aug 21, 2010 | Dell Latitude D610 Notebook

1 Answer

Have laptop Compac Prosario700 it powers up but doesnt boot from drive or posibly monitor problem? black streen dosnt power downunless removal of battery


  1. Check your power cord & adapter.
  2. If its working then check the battery, reseat the battery & check.
  3. If available then check with another battery
  4. If no, then remove the battery & switch on the PC in AC mode.
  5. Check if battery charging indication or AC power on indication is glowing. if not then need to change ur motherboard.
  6. If indication is OK, but could not power ON then check ur RAM for any loose connection or dust. clean & reinstall.
  7. If still no display, connect an external monitor, check if display is comming.
  8. If Display is coming then your LCD need to replace.

Aug 20, 2010 | Compaq Computers & Internet

1 Answer

Dell PowerEdge 1600sc server won't boot.


> black screen & flashing cursor ...

Damaged boot-record on the disk-drive???

Was it configured to try to boot from 'A:' ?
Disconnect the hard-drive & CD/DVD drives.
Put a diskette into the drive, and see if it tries to find a boot-record on the diskette.
If it tries, then it has P.O.S.T.'d correctly.

> no beep codes

When it worked, did it beep _once_ when P.O.S.T. completed?

Taking out the RAM _should_ cause some beep codes, i.e., "no RAM".

> anyone?

Replace the monitor?

Replace a dead video-card?
Or, add-in a video-card, and connect a monitor to it, leaving the original monitor connected to the original video-card. One of the two displays should show the P.O.S.T.


Jun 12, 2010 | Dell PowerEdge 1600...

2 Answers

No monitor display


Remove all data cables and external cards and press RAM than try again

Jul 23, 2009 | Computers & Internet

1 Answer

Emachine w2686 no display when boot up


Couple things to check. First, check with different monitor. Their monitors are usually build by KDS and I think there was a bad series out there. Also check for any beep codes through speakers on startup, this can tell you bad ram or bad video out. Also try unplugging computer and removing CMOS battery inside (watch like battery). Lastly, If non of the above, a bad processor will allow the computer to come on but no beep, no boot, no nothing but fans and green power light. Hope this helps a little.....

Apr 25, 2008 | E-Machines eMachines W2686 PC Desktop

5 Answers

Emachines 1900+ gets power to the monitor and computer but wont boot


There could be a number of causes. Do you hear any beeps when the computer starts up? Try seating all the chips in the motherboard. That means, apply pressure to each individual chip on the motherboard with your finger or thumb. The goal is to make sure each chip is securely attached to the board. Sometimes, heat or new h/w installs partially "pop" some of the chips out of the motherboard - causing the circuitry to be disconnected...

Aug 03, 2006 | E-Machines eMachines Refurbished EMA...

1 Answer

Emachines 1900+ gets power to the monitor and computer but wont boot


Buy a dianostics card, and find out if its the RAM, CPU, OR Motherboard. (sounds like a ram or CPU problem though) if you have more than one stick of ram in the system, take one out, and power it up, if still not response, to the other stick out, and put the stick you took out the first time, and put it back in.

Aug 03, 2006 | E-Machines eMachines Refurbished EMA...

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