I am trying to fix a Medion PC MT6 desktop with a Micro-Star MS-6747 Ver 1 motherboard and Phoenix BIOS. I was getting nothing on the monitor and now I still get nothing but also a long beep followed by pause then the same beep again, and so on...

So far I have very carefully checked all connections, checked all memory sticks for type and fit again and again, and changed the CMOS battery for a new one. After reading another thread I also changed the PSU for a brand new one, taking great care to refit all connections exactly as they were beforehand. I also switched the AGP grahics card for another which I know works but to no avail.

I am not sure what a long beep followed by a pause during boot means and still get nothing on my monitor/screen and am now at my wits end. Can anyone help?

Check this chart and see if it helps


Phoenix BIOS Beep Codes

These audio codes are a little more detailed then the AMI codes. This BIOS emits three sets of beeps. For example, 1 -pause- 3 -pause 3 -pause. This is a 1-3-3 combo and each set of beeps is separated by a brief pause. Listen to this sequence of sounds, count them, and reboot and count again if you have to.


1-1-3 Your computer can't read the configuration info stored in the CMOS. Replace the motherboard.
1-1-4 Your BIOS needs to be replaced.
1-2-1 You have a bad timer chip on the motherboard. You need a new motherboard.
1-2-2 The motherboard is bad.
1-2-3 The motherboard is bad.
1-3-1 You'll need to replace the motherboard.
1-3-3 You'll need to replace the motherboard.
1-3-4 The motherboard is bad.
1-4-1 The motherboard is bad.
1-4-2 Some of your memory is bad.
2-_-_ Any combo of beeps after two means that some of your memory is bad, and unless you want to get real technical, you should probably have the guys in the lab coats test the memory for you. Take it to the shop.
3-1-_ One of the chips on your motherboard is broken. You'll likely need to get another board.
3-2-4 One of the chips on your motherboard that checks the keyboard is broken. You'll likely need to get another board.
3-3-4 Your computer can't find the video card. Is it there? If so, try swapping it with another one and see if it works.
3-4-_ Your video card isn't working. You'll need to replace it.
4-2-1 There's a bad chip on the motherboard. You need to buy another board.
4-2-2 First check the keyboard for problems. If nothing, you have a bad motherboard.
4-2-3 Same as 4-2-2.
4-2-4 One of the cards is bad. Try yanking out the cards one by one to isolate the culprit. Replace the bad one. The last possibility is to buy another motherboard.
4-3-1 Replace the motherboard.
4-3-2 See 4-3-1
4-3-3 See 4-3-1
4-3-4 Time of day clock failure. Try running the setup program that comes with the computer. Check the date and time. If that doesn't work, replace the battery. If that doesn't work, replace the power supply. You may have to replace the motherboard, but that is rare.
4-4-1 Your serial ports are acting up. Reseat, or replace, the I/O card. If the I/O is on the motherboard itself, disable them with a jumper (consult your manual to know which one) and then add an I/O card.
4-4-2 See 4-4-1, but this time is your Parallel port that's acting up.
4-4-3 You math coprocessor is having problems. Run a test program to double-check it. If it is indeed bad, disable it, or replace it.
Low 1-1-2 Your motherboard is having problems
Low 1-1-3 This is an Extended CMOS RAM problem, check your motherboard battery, and motherboard.

Fortunately (I think) I reset the BIOS/CMOS by removing and replacing the new battery and now the beep has gone. However, while the power light is on and the CPU fan is flying, not much else appears to be happening and there is still nothing whatsoever on the monitor.
I do not think my hard drive is starting as I cannot hear or feel it working though it is properly set up as the single master and properly connected. It appears that while I no longer get any BIOS beeps, the boot/POST process is not finishing.

Change out your memory sticks if you can and see if that helps,sounds like a hardware problem according to the chart..........

vger its either CPU or GPU or RAM or possibly the mainboard slot.

Try one stick of RAM at a time.

Yup vger your right hardware.

Thanks for your help so far...

I have checked the four memory sticks one by one in the first slot, and have fitted an identical processor but still no joy. There are no beeps during boot/post either.

I see there are a number of other threads on the subject, but none I have read state what actually fixed this problem.

OK, the problem I have is that there is no signal/image on my monitor at all and I am not getting a BIOS/POST beep.

By process of elimination with new parts or using a test PC, I have ascertained that the AGP graphics card, memory, CMOS battery, CPU, PSU and monitor cable are all working fine. So is the monitor cable.

I there anything else I should do before buying a replacement motherboard?