ASUS P4S800D-X Motherboard Logo
Posted on May 09, 2010
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Not recognizing memory.

Asus P4S800D-X motherboard. I put in four 512 memory sticks and it is still just recognizing.

  • Matt Rubin
    Matt Rubin May 11, 2010

    "I put in four 512 memory sticks and it is still just recognizing." Just recognizing how much of the 2GB of Memory? You can use DDR 184pin RAM. What kind of ram are you trying to use? What manufacturer, memory speed and where did you buy it?

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  • Master 2,351 Answers
  • Posted on May 09, 2010
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The Asus P4S800-X MB can use Dual channel DDR memory and single channel memory. The dual channel memory which comes in matching packs. (Normally 2 DIMMS per pack) is the faster memory.
In other words if you are installing, 4- 512MB DIMMS of PC3200 all memory should be matched,
or you're MB may not see all connected DIMM'S.

See page vii in you're manual. If you're running windows XP, Home or Pro edition the bios will show up to 4GB of memory installed but windows XP 32bit will only show 3GB of memory. As mentioned above all 4 of you're 512MB of memory should be dual channel and run at the same speed. You can run both single channel and dual channel but you must follow Table 1 in you're manual. (1-9).
Example; PC3200 400MHz.
Or 4-512MB PC2700 333MHz. See page 1-9 for memory configurations and the QVL list supported.
Check out Asus FAQ's; http://support.asus.com/faq/faq.aspx?SLanguage=en-us&model=P4S800D-X&product=6&os=17

This should help you configure the memory.
Good luck!
Mike

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  • Master 10,406 Answers
  • Posted on May 09, 2010
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According to the ASUS Motherboard manual:

http://dlsvr03.asus.com/pub/ASUS/mb/sock478/p4s800d-x/e1753_p4s800d-x.pdf

your 4 sticks of RAM should be fully supported:

* 4 x 184-pin DDR DIMM sockets for up to 4GB memory
* supports PC3200/PC2700/PC2100/PC1600 unbuffered non-ECC DDR DIMMs
* dual-channel memory architecture.

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