Msi 6378 turns on but I don't see anything on the monitor

When the monitor shuts down, is the activity light on the monitor blinking yellow? or staying yellow constant? Have you tested another monitor? When does the monitor shutdown exactly what is the computer doing at the time the monitor shuts down?

1. Blinking yellow means failing monitor. Not all monitors will exhibit this behavior. For example my Acer Monitor blinks with a blue light when no video input is detected. It doesn't always mean the monitor is bad, but may indicate the video card is failing. Also check and/or replace the video cables

2. Solid yellow means no video input detected Not all monitors will exhibit this behavior. For example my Acer Monitor blinks with a blue light when no video input is detected. It doesn't always mean the monitor is bad, but may indicate the video card is failing. Also check and/or replace the video cables

3. Testing another monitor tells you if the video card is failing. If another monitor works, the problem is your old monitor failing, if a new monitor doesn't work, then the problem is more than likely a failing video card.

4. It is rare but sometimes the Video PCI slots can go bad, while another may work on the same motherboard. This further indicates if it's a motherboard issue, and not the monitor or the video card. Just change the PCI slots the video card is plugged in to and see if it works.

5. Power issues can cause this video issue as well; For example if your PSU is not strong enough to support your video card, it may exhibit no input detected issues past a certain point in the boot process. This is due to lack of power being supplied to the video card. MOST video cards have a warning of sorts if this is a case, but some do not. This issue is more common with higher end gaming video cards and/or lower end power supplies.

The best way to test this is to disconnect ALL devices from the motherboard that require power; For example; CD drives, Hard drives, USB devices that may be plugged in other than keyboards/mice. Only boot the PC with the video card, RAM, and CPU installed. If you get video start attaching 1 device at a time and doing a fresh boot with each device connected. So if the PC boots fine with video on the monitor when the CD Drive is plugged in... it's not the CD Drive causing it. Then hook up the hard drive WITH the CD drive, and see if the PC boots with video then... If it does not, you can infer a power issue might be causing the problem.

Another issue that may effect the video card directly pertaining to power issues are; Try swapping the power cables to the video card with a different power cable. That is to say a power cable coming from the Power Supply that isn't connected to anything or in use by anything else. It is possible a power cable line is bad and/or not working in which case it's a Power Supply issue.

In some cases; This test will be negative on all accounts; At this point, It may be your RAM/CPU causing the issue; Try reseating the ram, that is to say uninstall the ram physically, use a cloth to clean the gold prongs on the ram sticks, and place the ram sticks back into the motherboard; See if it boots up with video then. If it does not; Try removing ram sticks 1 or 2 at a time as required and checking again. This helps determine if it's a specific ram stick causing the problem.

6. If the video STILL is not showing up you will want to check the following.

Check the motherboard for blown capacitors; They will appear in the following forms; Clearly bubbled tops on the capacitors; Exploded tops or yellow crystalized liquid leaking from one or more of the capacitors (like battery acid). This causes a HUGE list of random issues that are symptomatic of power issues. In this case a (Failing Motherboard) Most common on intel and dell motherboards especially on older hardware/PC's.

The CPU is the hardest thing to detect if it's failing, and is rarely the cause, if common sense and care are taken when handling a CPU.

At this point if you still can't figure out what's causing the problem; Replacing the motherboard or monitor is recommended. Monitor if you do not have another monitor to test. Or motherboard if you've exhausted all other troubleshooting steps.

I realize it's a lengthy description, but your description of the problem wasn't exactly specific so I wanted to be thorough and cover all the basis that could cause this problem.

Hope this helps.

hi there:) you didn't mention the power supply...Is it enough to run the new board and/or the graphix card, which you also didnt mention:) tell me the answer to these two questions and we'll go from there. P.S. Your fan, from what you described, is working exactly as it is supposed to:)

That's most likely your issue you definately don't want to run a recommended 400W on 250 you might get away with 300-400, but I doubt 250 is giving the card enough power to run and give you display. You, could unplug your Hdd, cd/dvd drive basically everything except motherboard,powersupply, ram, cpu, and video card to see if that lowers the power load enough to get an image, which would then mean its definately the lack of power and you need a new power supply.

Test your PSU or replace it if your power supply units fan is not working your PSU is faulty

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive
Test the leads that attach to your ((hard drive from the motherboard)) or replace all the leads that attach to your hard drive including electrical extensions + IDE,SATA and the ones that attach from your ((motherboard to hard drive))
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electrical extensions or just replace them they could be faulty a computer needs its connections needs its connections continue its cycle and to have an end so any faulty leads will end up with a computer error
hope this helps

This is what I would recommend:
First, unplug the computer from the power outlet. Then re-plug it and try to start it. If nothing seems to work, but you have power (you can hear the fans start and hear the hard drive spin up, you can open the case and disconnect everything BUT the CPU, memory, and video. See if it starts. It should start up with video and give you an error saying something about no boot device. If this is the case, then start plugging things in starting with the hard drive.
If it doesn't work your power supply may be bad. If you have another to swap out, that's good. If you don't, then you really can't check it without a power supply checker.
If this doesn't work you are probably looking at a bad motherboard, bad CPU, or bad memory.

HI,

It may not be the video card. It could be a number of other issues that is causing the board not to boot all the way.

I don't know how computer technical you are, but it sounds like you know a thing or two about them. So here's the best way to find the problem:
Determining what is wrong is like detective work. What I do, is open up the case and take everything off the board to start. Then add the minimum to start a board to see if it will start. That's one drive (cd, hard drive or otherwise) the CPU, a graphics card (only if required) and one bank of memory. (which is not required, but it helps avoid beep codes) Also, make sure you have your pin's set on the board absolutely correct, or that could be your problem to begin with. If your going to load a IDE drive, make sure you set your pin setting correctly on it, meaning the drive (IDE or EIDE) your putting on the board is set to Master, or Cable Select if your using the cable placement method.
Now, turn it on, and you should get the power supply on, and the cpu fan going. If they start, then make the next step to have the single drive be your hard drive, and see if it boots. If it boots, then great, open Bios and make sure Bios is reading the board and all things are fine with it. If so, what ever you put on next make sure it one at a time so you can identify what it doesn't like.
In the case where the CPU or power supply don't power up, it's then either one of the six elements. The CPU, Power supply, Ram, Drive, graphics card (if required) or the motherboard.
The next step is to replace each one of the first five, starting with the Ram Chip, put another like chip in and see the results. Then do the same thing to each of the remaining 4 components, the graphics card (if required), then the drive(cd, hard drive or otherwise), on to the CPU, and last the power supply. Hopefully something will show it's ugly way to make a change. Also, on the drive (IDE, EIDE or SATA) , try a different cable to make sure it's not that,
Now If no changes happen after all that, then I take it one step further and usually get a like (doesn't have to be exactly the same, but a board that the components can be tested on) motherboard that I can test the first four, and make sure that they really work. If after that and you have tested all of the components and they all work, then it's save to say you have a bad Board my friend. It's a lot of work I know, but it's the sure fire way of finding out what isn't working.
　
Good Luck

Mark

have u checked vga card take out all peripheral cards and all cd rom dvd rom drive cables just put RAM Hard disk and VGA on board then check it seems like hardware conflict pls let me know abt the results i can guide u further

No offense, Tyson, but would you mind explaining your question a bit better? You wrote "when i out the power cable in it"and that really confuses me. Did you unplug the power cable or did you plug it in?

Also, how long ago did this happen? Was there anything you can think of that may have caused this problem?

If the CPU fan is not rotating, you may have a problem with your power supply.

I am guessing your system is powering on, but not showing anything on the monitor.

Try removing every thing from the computer, starting with the power cable. Then add back only the monitor and turn it back on. If it works, one of the items you left unplugged is causing a problem.

If that does not work, again remove the power cable and open the case. Remove all expansion cards other than video, disconnect all of the drive power and data cables (CD, DVD, hard drive, etc.) then plug in only power and monitor to see if you get anything.

If still no go, unplug power cable, carefully remove the RAM and put it exactly back where it came from. At this point, if you still get nothing you are down to 4 components:
motherboard
power supply
CPU
video card

If the CPU fan is still not spinning, I would suspect it is the motherboard or power supply. Get a can of air and blow out the CPU fan to make sure it rotates easily.

Let me know if you need more help.

Honest1abe

- You need to reseat all of your hardware inside the system like hard drive power and data cable,as well as the dvd drive cable, reseat also the video card and power supply cables. Make sure that you will tigthen the video cable screws. after this step- turn the system on.

-If the monitor does not response from anything, try using different monitor so we copuld isolate the issue.

Lex -

I would first check your ram, make sure its the right type and rating for the motherboard. Although most systems will beep at post for a memory issue, sometimes reseating the memory alone can clear up a startup hang.

If the memory is seated okay, the right type and speed rating, try using a different video card in the system. Its possible that the system is starting up normally, but not being displayed.

If neither of those help, minimize the system. Plug in just the bare minimum needed for operation - Power supply, processor, heat sink & fan, a single memory stick, a single hard drive, video card(if its not integrated on the motherboard). Plug in a monitor and the power cord, then see if the system boots.

If all that still fails, verify that the CPU fan AND the Power Supply fan are spinning when power is on. If so, this points to either a bad memory stick(try another), bad processor(if available, try one at a slower or faster speed), or bad motherboard.

Hope this helps!
-thinstatic