Question about Biostar P4M800-M7A Motherboard

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Is my motherboard defective?

Hi, evrytime i turn on the power of the pc, my pc wont start but harddisk led stays lighted all the time, cpu fan works, is there something wrng with my motherboard?

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  • rianne809 Nov 18, 2007

    oops, i think you posted on my own post, anyways, i suggest to download the drivers for your video and sound card through the net, just use google to search your hardware specs.

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I have accidently deleted video and sound drivers , and i dont have a cd to install that ,i have a biostar motherboard model p4m800-m7a i have tried to search the appropriate drivers but coudnt find them could please help me out

Posted on Nov 17, 2007

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Go to http://www.biostar.com.tw/app/en-us/mb/driver.php?S_ID=92

Posted on Sep 03, 2008

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Hi. I know that this is an old question, but let me share my experience with this motherboard in case that it helps someone with the same problem. I had exactly the same problem, the fans worked and the harddrive light was on, but the motherboard did not start. The motherboard did not even beep; even when I took the memory modules out it did not beep at startup. The fans just started and then it sat there doing nothing! I wasted hours on this and was convinced that the motherboard was faulty... but then I thought of trying the following and it worked:

On the motherboard JCMOS1 has 3 pins; pins 1 and 2 are closed in normal operation. Closing pins 2 and three instead puts the motherboard in clear CMOS memory mode. So that is what I did, I moved the jumper from pins 1 and 2 to pins 3 and 4. I pressed power a few times, but I don't think that was required. After 30 seconds or so I put the jumper back on pins 1 and 2. And then when I pressed power the motherboard FINALLY beeped and continued starting up. On first startup it gave a message to the effect of "BIOS checksum error"', so I went into the BIOS, loaded the default settings, saved and went out. (Oh, and removed the floppy drive in the BIOS too, as I did not have one). After performing these actions, the motherboard started up normally and has been working fine for the last few days... here is hoping that it continues that way!! :)

So that is how I solved this problem... hope it helps someone. :)

Posted on Mar 02, 2010

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Your motherboard id ok , but your videoboard is not :| try changing it

Posted on Sep 28, 2008

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