Question about EliteGroup P4M800-M7 Motherboard

2 Answers

Will 800Mhz/667Mhz ram work?

I tried installing some 800Mhz speed RAM but it didnt work (because it isnt compatible with the motherboard). After this, I tried some 667Mhz ram that I had lying around, again it didnt work. Should the 667Mhz RAM have worked? Has this permanently damaged the motherboard? The motherboard wouldnt start with the 800Mhz ram, it powered on for half a second then turned off.

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  • sebastian_sc Dec 20, 2008

    The board was made by EliteGroup and it's model is P4M800-M7. The board has 2 sockets, each for DDR2 (DIMM) each labeled 667. The computer turned on and quickly turned off whenever tried the RAM with the higher bus. It could be a problem which is unrelated to the RAM but I'm not sure what it could be.

  • sebastian_sc Dec 20, 2008

    Thanks Howard, I think the problem is unrelated to the RAM. My mistake, the motherboard was the P4M900T-M2 (the distributor had the wrong code listed) and it does support DDR2 RAM. I replaced the 800Mhz RAM with some RAM that was indicated as compatible but I get the same problem. Here is exactly what happens:

    When the computer is powered up with only the motherboard, power supply, cpu, cpu fan and RAM installed it turns on momentarily (20ms) and then turns off. The fans will start spinning and the led fan will light up before turning off. It will then no longer turn and and you have to reset the psu (turn it off an on) before it will turn on at all again.

  • sebastian_sc Dec 20, 2008

    Yes, the computer is brand new, all the parts are brand new

  • sebastian_sc Dec 20, 2008

    I now have just the bare-bones system running, no HDD or CD drives connected.

  • sebastian_sc Dec 20, 2008

    Yes, I have tried re-installing the motherboard and the 4 pin connector is plugged in, im going to try switching the psu with a better one (one which I know that works)

  • sebastian_sc Dec 21, 2008

    Problem solved!
    I removed the psu that I was using for this computer and the system started normally. I then purchased a new psu at the best buy down the road and it worked as well so I'm thinking it was just a psu problem. Thanks Howard and everyone else for your help! It was really stressful :S

  • Anonymous Jan 06, 2009

    I tried installing some DDR 333Mhz speed RAM but it didnt work (because it
    isnt compatible with the motherboard). After this, I tried some DDR 266
    ram that I had lying around, again it didnt work. Should the 667Mhz RAM
    have worked? Has this permanently damaged the motherboard? The
    motherboard wouldnt start with the 800Mhz ram, it powered on for half a
    second then turned off.

  • Howard Lester May 11, 2010

    If you could plug it into the socket it should have worked.All the ram types have different socket configurations.Both the rams you tried are DDR2 and the 800 ram would simply had defaulted to the lower speed of the bus if the speed was 667mhz.How many ram slots does your board have?

  • George Bill
    George Bill May 11, 2010

    all boards are different, we need the specs on the board, is it ddr1,2 or.3, what is the specific ram it uses. how many pins etc, name model of board is paramount, then it can be diagnosed.



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Yere is what I think happened, the memory in the board is messed up from trying too many different things, you need to clear the CMOS, then put in the right memory and don't keep messing with it or you will eventually fry it. Shut the power down, and pull out the plug,"or it still gets power", then take the jumper near the battery the round silver battery, and "clear" it, you manual will tell you or look online before you start, usually you move it over 1 pin and the put it back, remove the battery, don't force it, it will just pop out if you press on the little clip on the edge, wait 5 minutes and replace it. When you are done you will have to go into the bios again and put your setings back in, time date etc, that is where your settings are saved when you clear the cmos u clear the settings. Tell me if it starts. be back in a bit

Posted on Dec 20, 2008

  • George Bill
    George Bill Dec 20, 2008

    I didn't realise you were being helped, you are in good hands, later, Gym


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  • 341 Answers

I checked the site and downloaded the manual and the board takes straight DDR not DDR2. This may or may not be true because they may have made the board in a newer revision that uses DDR2. It seems unusual to me that your could get the DDR2 ram in that board since the slots are different on every version of ram.The manual I have here is for motherboard Version 3.1.Is yours the same? Here is the page address if yuo want to download the manual. Keep me posted on this one if you will.I want to help you solve this.

Posted on Dec 20, 2008

  • 4 more comments 
  • Howard Lester Dec 20, 2008

    Is this a new install?

  • Howard Lester Dec 20, 2008

    Is the hard drive SATA or IDE?

  • Howard Lester Dec 20, 2008

    we should try to set up a chat

  • Howard Lester Dec 20, 2008

    I the motherboard installed in the case? If it is remove it and put it back together outside of the case. I have seen many times where the brass standoffs are either in the wrong place or one too many and they short the board out.Also, you have the 4 pin connector that powers the processor installed right? Located just above the power coils on the board.

  • Howard Lester Dec 20, 2008

    good idea keep me posted.

  • Howard Lester Dec 20, 2008

    Keep me posted



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