Question about SIS741GX-MN Motherboard

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As soon as Windows xp home began to load....

Sis SIS741GX-MN Motherboard I just bought worked fine. I have a LCD monitor as soon as I got to the part of win xp home where it begins to install file, the screen went into colorful vertical lines and my MB speaker started beeping 2 twice then quiet and 2 twice and so on.


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  • Obenour Aug 10, 2008

    Thanks Map9966, I did make an error in my explaination it is 3 beeps and a pause which I think is a mb fatal signal.

    Do you agree?

    Thanks much!


  • Obenour Aug 10, 2008

    Hey thanks much, but I made a mistake. There is 3 beeps and a pause! I located some error beep data and it says 3 beeps and pause is bad motherboard. Do you agree?

    Thanks map9966


  • Obenour Aug 12, 2008

    I changed the memory and made sure they were tight and it did not seem to make any difference.




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Hi Obenour,
Two beeps than a short pause than two beeps again repeating means. A memory parity error has occurred in the first 64K of RAM. The RAM IC is probably bad. Best thing to do is download a memory testing bootable software for a floppy disk. This program works out side of windows. It will test you're memory.
You'll need display for this. If you have more than one bank of memory installed, remove all but one. Check your manual & see which DIMM slot the memory should be in as a single DIMM. If you only have one DIMM replace it. Test you're monitor on another system or laptop. (Checking it on another system, verify’s its good).
Monitor display good! Than check video card (If you added an 8x AGP card). Remove & reseat the card. Check again for good display. Still no decent display? Windows will not install file correctly with bad memory. You will not receive clear display on your monitor.

Posted on Aug 09, 2008


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If you have SATA hard disk - do not set AHCI mode in BIOS for IDE - use compatible mode.
Check memory is fitted correctly and is correct type.

Posted on Aug 09, 2008

  • Steve Si
    Steve Si Aug 10, 2008

    3 beeps is bad memory - is memory loose?



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