Question about ASUS M3A78-CM AMD 780V AM2+ Phenom FX / Phenom X4 / Phenom X2 / Athlon X2 /AM2 Athlon 64 X2 / Athlon... Motherboard

1 Answer

Yesterday I shut off my computer normally (start, shutdown) and when I went to turn it on a couple hours later, the computer powers up and everything sounds normal, but nothing is displayed on the monitor. I have tried switching the monitor and still nothing happens. The internal speaker no longer beeps (and I have checked the internal speaker). I have tried removing the CMOS battery for a couple hours to possibly reset the bios but still nothing comes up. If anyone has any suggestions I would appreciate it! Computer Specs: ASUS M3A78-CM motherboard, AMD Phenom 9600 CPU, Kingston HyperX 4GB (2 x 2GB) RAM, ASUS EAH4670/DI/512M/A Radeon HD 4670 GPU, OCZ GameXStream OCZ700GXSSLI 700W ATX12V PSU.

Posted by on

  • Corey Beebe Nov 15, 2010

    Thanks. After removing the RAM and replacing it, the computer booted up just fine



1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 20 achievements.


    An expert that got 10 achievements.


    An expert that got 5 achievements.

  • ASUS Master
  • 13,433 Answers

If you know that the display is working, (you've tested it on another machine or similar) Then the issue is with the machine obviously.

Lets begin by removing all the RAM from the machine, (Unplug first of course, and press the power button so that any remaining power is released)

After you have removed all the ram from the machine, plug it back in and power on, it should BEEP.

Turn off the machine after you have gotten tired of beeping (just turning it on and hearing the beep is enought, if you don't hear a beep there might be a more serious problem, but more on that later)

Plug in one of the Ram modules. And power on again. you should get picture now as long as the machine beeped before, if it doesn't try the other module.

By now you should be getting picture out of the machine, if not, the problem is possibly the video card, cpu or mainboard.

Unplug all the extra devices on the machine, only leave connected, Powersupply, mainboard, cpu, ram, video. disconnect all the cables going to dvd drives etc.

Try turning on again, if you still don't get anything, remove the video card, if possible try another card, power on without the card and turn off again, plug in the card again.

You should have gotten the machine working by now, by trying another video card, if not, the problem is either the cpu or the mainboard.

There is a Clear CMOS jumper near the mainboard battery, removing the battery is not a good way of reseting the bios, best way is to use the jumper on the board.

Posted on Nov 15, 2010

  • Ekse Nov 15, 2010

    Run memtest program, since you have 4GB of ram you need to start 2 instances of the program, first program set the memory to be tested 2048MB and the 2nd one leave it on: test all free ram.

    Let them run for a hour to confirm that your RAM is working properly.

    If any kind of error messages start coming up you have faulty ram, Kingston should have lifetime warranty if I remember right.



1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi there,
Save hours of searching online or wasting money on unnecessary repairs by talking to a 6YA Expert who can help you resolve this issue over the phone in a minute or two.

Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.

Here's a link to this great service

Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

1 Answer

Monitor goes blank less than a second after turning on.

Sounds like either there is a bad connection from the computer to the monitor, or the monitor has a faulty power regulator, causing the monitor to overheat prematurely, and shut off.

Feb 21, 2008 | Proview PL926WBi 19" LCD Monitor

1 Answer

Stratus wont start

Could be crankshaft sensor.

Apr 27, 2013 | 2004 Dodge Stratus

1 Answer

I have a M9601 alarm and M99 immobiliser fitted to a mk5 xr3i,everything was fine until yesterday when the car was started first thing in the morning as normal but i had to go back indoors so meant turning...


if the battery is not much good then you will get issues like this also being a ford I would check the earth connection from the car battery to the car body, the main feed. also there is another o the gearbox and another that runs to the altenator, these are all common poor earth problems. ensure they have a good conatct.

Secondly have you checked the fuel relay is not loose or maybe on it's way out, this again is not unusual, if the relay fails then it has an electro magnet inside, poor powr from the battery will make it stick either open or closed like a light switch kinda, you should here it ticking at the fuse box when the key is turned, also immobilisers often use this part of the cars wiring to stop fuel coming to the engine as a security measure. Maybe thats the issue the immobiliser shutting the relay down.

I would certainly check that first as its super simp,e to replace.

p.s if you need more info get back to me

Jan 08, 2011 | 1993 Ford Escort 4 Door

3 Answers


I just had this problem at work and what I did was I powered up the computer and went into the menu. I went to the 2nd to last button and selected the reset. It's working perfectly now. I do not know if it will last but it's easy and free.

Jan 23, 2009 | Acer AL1711 17" LCD Monitor

2 Answers

Car won't start

test/replace the alternator.also be sure all connections are tight at battery...ground side other end of battery especially..good luck

Dec 12, 2008 | 2003 Kia Rio

2 Answers

Computer shutting down

do you get a blue screen when it shuts off? or... does the monitor just turn off, or does the computer tower and everything turn off?

If everything turns off,(like a normal shutdown) try checking your power options in the control panel, to make sure there aren't some power saving settings that are causing it.

If its a blue screen type issue, then there may be a hardware problem that is causing the computer to shutdown to avoid further damage to the system.

Jun 27, 2008 | Acer Aspire T120 PC Desktop

Not finding what you are looking for?
ASUS M3A78-CM AMD 780V AM2+ Phenom FX / Phenom X4 / Phenom X2 / Athlon X2 /AM2 Athlon 64 X2 / Athlon... Motherboard Logo

Related Topics:

95 people viewed this question

Ask a Question

Usually answered in minutes!

Top ASUS Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18424 Answers

Alun Cox

Level 3 Expert

2678 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

Are you an ASUS Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides