Question about Foxconn P4M800P7MA-RS2 Motherboard

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Please help me in my RAM

I need your help.....
I have a foxconn motherboard (P4M800p7MA-RS2), it supports both DDR 400 (two slot) and DDR2 533(two slot).
When i bought my PC, I installed a 256MB DDR 400. This time I changed it with 512MB DDR2 533. When I installed the DDR2, I removed the DDR1 because the manual told me me to do so. I installed it correctly on its respective slot.
Sadly, my PC hangs everytime I log on.
I'm so confused because the manual said that "it supports DDR 400 and DDR2 533" memory.
I'm using a (1) 256MB DDR 400 this time. Please help me, I want to use the 512MB DDR2.

cpu name: Intel(R) Pentium(R) CPU 3.06GHz
motherboard model: P4M800p7MA-RS2H
BIOS Name: Phoenix- Award V6.00PG
memory device: KVR400X64C3A / 256Mb

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  • hope13 May 16, 2008

    Sir, thanks a lot...
    First I used a (1) 256MB DDR 400. But i tried to changed it to a (1) 512MB DDR2 533.
    oh yes, they are individual stick.
    Yes i installed it correctly. I remove the 256MB DDR 400 from the blue slot and put the 512MB DDR2 to the yellow slot.

    I logged on, sadly as it reaches to the "windows starting up (blue screen)", my pc hangs there. So i brought another 512MB DDR2, sadly it shows same response like the first one... I tried to put the two 512MB DDR2 at the same time on the yellow slot, sadly, again, same response occur.

    Please help me sir, I want to use the (2) 512MB DDR2.

    cpu name: Intel(R) Pentium(R) CPU 3.06GHz
    motherboard model: P4M800p7MA-RS2H
    BIOS Name: Phoenix- Award V6.00PG
    memory device: KVR400X64C3A / 256Mb

  • shoaks Nov 20, 2008

    I am having a problem with new Kingston Memory that I just installed on my PC. The motherboard that I have is a P4M800P7MA-RS2 Motherboard and the I had 1 512MB (DDR2 533MHz) memory moule in the 1 slot. I then installed a 2GB (DDR2 533Mhz) and my system only picks up 1.5GB when both memory modules are installed. When I removed the 512MB it still only picks up 1.5GB total memory installed.

    I have also checked the spec on the mother board and it show that it can support up to 2GB's.

    What could be causing this to happen?



  • Rich Travis May 11, 2010

    From your description I'm not clear on some things.
    first, while you provided the part number for the 256MB Ram, you did not provide the part number for the 512MB. Do you have that available? It appears that there are some 533 module that have problems.

    secondly, I want to be clear: when you said "I installed it correctly on its
    respective slot" are you saying that you only installed the 512MB module? According to the manufacturer you can't mix 400 & 533 memory (this isn't always true, but it sometimes is). And, if you have both Yellow & Blue slots, which?

    Thirdly, when you refer to "a 256MB DDR 400" are you talking about 1 individual stick or a matched pair? I'm pretty sure I know the answer to this one, but I thought I would check.



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Hi hope13,
you had it correct the first time. The DDR2 533MHz memory should be in the Blue slots. When using two DIMMS the motherboard requires the DDR2 533MHz memory be of the same size, brand & speed. For you to get a blue screen has nothing to do with you're memory. If there was a problem with you're memory, you bios would let you know by beeping a series of repeating beeps. Blue screens are usually caused by software & some hardware like you're hard drive. If you have data on you're hard drive & you do not want to erase it by re-installing windows fresh (That includes a must format), than I can suggest you download this software from this site. Click on the link. Read what the software can do for you. If you do not want the software. Than break out you're windows CD & load it into you're CD-ROM drive. Boot the PC to the CD-ROM drive & in-stall windows. You're PC will function again when you finish installing windows & you're motherboard driver cd.

Good Luck!
I would have posted sooner but I though another was answering you're question.

If I can help you further, feel free to post.
Suggestions & comments welcomed.

Posted on May 22, 2008



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Dear Sir

*********** Board is :Foxconn P4M800P7MA-RS2
Max Supported RAM : 2GB DDR2
Supported RAM speed: 533 MHz • 400 MHz • 333 MHz • 266 MHz. I think it deffinately solves your problem.If you have any problem post your comment with more information.

Good luck

thank you for choosing Fixya

Supported RAM speeds 533 MHz • 400 MHz • 333 MHz • 266 MHz

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