Question about Syntax SV266M Motherboard

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DDR PC3200 displays no video on LCD and Out of Range on CRT

In an attempt to upgrade from sdram to ddr, used Crucial Website to identify correct memory for Syntax p4vm226 motherboard, I receive errors. I have removed the 256 M Sdram before installing the DDR 512 Module from Crucial. I cannot find any settings in the BIOS or MB to change memory types.

Posted by Bob Eyer on

  • 4 more comments 
  • Bob Eyer Aug 10, 2007

    I have been working on this since the post. I check the bios and it was already set to auto. However, not I have a bigger problem. I changed a setting (I may have set BIOS to optumium instead of default) and immediatly after I saved and the reboot occurred, the computer locked up and went dead. If I remove the power and put the startup button, and then reapply power and try to start the computer, the fans turn slightly and then stop. I assume the BIOS does not like something. I have the old sdram memory in the computer. I have been trying to clear the BIOS, but I get the same result. I have moved the jumper to 2-3 and removed the battery Help


  • Bob Eyer Aug 11, 2007

    I have tried all of the suggestions. Same result with all settings. The fans start and then stop. No other power visable.

    I have tried both the jumper and removal of battery over night to clear the bios. Same result. I have set the jumper to 1-2 and removed the battery over night.

    I have tied to reseat sdram memory. I set the memory settings to 133 instead of 100 and used the DDR memmory. I have moved the SDRAM to the other slot.

    Before the failure, I had reinstalled the SDRAM and it was working. As I stated, the failure came after I saved the BIOS. I know that the default BIOS settings(which I should have after clearing) worked, but it was slow.

    The I/O Chip is VIA VT8233

    Any other Ideas would be greatly appreciated. Could it be Power Supply or Mother Board?


  • Bob Eyer Aug 11, 2007

    I have ordered a power supply, and I will advise after I have installed it.

    If anyone else has any ideas, I still would like any advise. I do not understand why the fans (both) start to turn slightly.

  • Bob Eyer Aug 12, 2007

    You are correct on what memory has to be removed. My original problem was that the new memory caused the video to go haywire. I was advised to check the BIOS settings. Now the computer will not start and I have tried everything that I can find to clear the BIOS using the old SDRAM memory. The fans move slightly when Powered UP, but that is all the power that is seen. I am now advised to replace the power supply. I normally see only good or dead power supplies, so I do not understand the slight fan movement.

    I have ordered the power supply.

  • Bob Eyer Aug 13, 2007


    Thanks for the great post. Let me make sure that I understand. I know that mistakes can be a real problem!

    Try a new Power Supply first (I have one on order).

    Then following point 4. above, remove the IDE cables, Modem, and memory. The video and sound are integrated into the MB. I also assume that I should remove all plugs from back (monitor, keyboard, and Mouse). Should I remove the power leads from the drives?

    I also assume that I donot remove the Processor in any of the steps that you outlined.

    Thanks again

  • Anonymous Apr 09, 2008

    I opened my pc...the display started for a while then all of a sudden "POOF" the display is gone.....I isolated the problem coz I tried all the hardware and all is working except for one....My board...I tried moving the jumpers and the battery tried running it without the other gadgets but still it won't hope that you can help me out....thanks




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andrew pester

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If you are having trouble with the memory, if i remember rightly, to the right of the memory slots are a long black stip jumper which has to be removed to use DDR memory.

Posted on Aug 11, 2007


Louie Role

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Hi, If I may add to the other posts, 1. If the problem persist with the new or the old memory, then it is not a memory problem; 2. Jumper on Clear CMOS/BIOS and removing the small battery should set the system back to default, of course for normal operation, it should be set back to normal position; 3. It is possible that it is not a PSU problem, it is likely that the PSU is ok and just doing its job of switching off probably due to a fault at the motherboard; 4. The MB fault maybe be anything. Try removing everything except mb & front panel wires and the psu (video card,cables to your drives, memories). Check if on powerup, fans will spin normally and not just start then stops; if it works reinstall everything, if not: 4.1 Remove your motherboard from the back panel plate, remove the front panel connector/wires (it is a good idea to mark them down or copy how they are connected), remove power supply. Place mb on top of an old newspaper or something (as long as not metal or conductive), Install PSU power connectors, short/jump power on pins (where the front panel connectors/wires were connected before). If it works, your set to go, If not, maybe for some unknown reasons the mb is fried. Other possible causes of start/stop spin of fan: reset switch stuck, bent pins in memory slot, inverted IDE cable (though not likely but possibly), MB sensing fan is not or malfunctioning, fried CPU, BIOS (though normally there is a warning of boot block or something like that), no keyboard present. Of course, I am assuming that you have replaced the PSU with a new or known good one as you have comment/posted previous to this. Hope this works out for you and give you further ideas. Pls comment/post back should you need further information. Good luck and kind regards.

Posted on Aug 12, 2007



Remove and reseat your RAM

Posted on Aug 10, 2007


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In the BIOS, it usually is in the CPU section. If you find it, you can set it to auto and let it find the memory. I will look into it.

Posted on Aug 03, 2007

  • 1 more comment 
  • Anonymous Aug 03, 2007

    Set the BIOS to "optimized defaults"
    There is jumper on the MB for CPU, auto should do it.

  • Anonymous Aug 10, 2007

    Set your mother board jumpers back to where they were.
    Put your old RAM back in if you have to, to get it to boot, and in the BIOS and have another look at what you changed.

  • Anonymous Aug 11, 2007

    Yes, power supply first. Its a lot cheaper and easier.


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