Question about Gigabyte GA-7VRX Motherboard

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GA-7VRX Motherboard won't boot

Good evening,
I just bought a new motherboard and processor (the cpu is an AMD XP 2500+) but when installed, the system won't boot up.
What happens is this:
The CPU fan turns for a second but then stops, nothing else is booting up either.
After that failed, an orange LED is lit up and stays lit up on my motherboard.
Power jumper is where it's supposed to be, but I don't know what the problem could be.

Thank you for our help :)

Posted by on

  • sebaswis Dec 19, 2008

    Hey Mike,
    thank you very much for trying to help me solve this and actually reading my mboard manual :)
    I have to clarify one thing though and I'm sorry if I didn't make that clear in my earlier post: I replaced my old motherboard with this new GA-7VRX one. (My old one was a also a Socket A processor, but an older one)

    (Now I've tried to take my old cpu off my old mboard and then try to exchange the parts to see what the matter is, but it appears my old cpu is 'stuck' in my old motherboard. But that isn't really the issue here XD)

    I'll try disassembling the heatsink soon (problem is I'm going on vacation for 4 days - perfect timing, I know :P)

    What kind of bothers me is that my old mboard had an ATX12V connector whereas the new one doesn't...

    You mentioned my mboard might be shorted to the case? I did everything I've done with all other mboards I've had (and again with the one I put it and worked fine) so I don't know if that could be it. But that might explain it, yet I don't really know how I could test that out.

    Thank you for the mboard link btw: It was helpful in that it showed me all the steps that I had done and done correctly.

    Please get back to me if you can. While I will be on vacation, I will still have internet access, just not the CPU and mboard to tinker around with ;P

    Happy holidays and thank you :)



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Hi sebaswis, am I correct that this Gigabyte GA-7VRX is a replacement MB? (I read your other posted questions). You mentioned you put your old system back together & it worked fine. If mother board is shorted to the system case you will see the CPU fan spin for a second. Most motherboards use a green led which represents there is stand-by power running to the board.(This is normal). I am unsure why your led is orange. (Its not mentioned in your manual & manual does not show the led?s location). Was the other GA-7VRX MB led always orange or was it also green? Suggest you disassemble the heat-sink from the CPU. You mentioned you installed a new XP 2500+ CPU. If a pin on the CPU was bent during installation of CPU into the socket or if no thermal grease was applied or too little to the top of CPU, either would give you: CPU fan spins for a second & nothing else seems to run. Look over the link provided below. It is a guide to how to install a motherboard. (You may not need this but Its worth going over all the steps). As far as the power supply. If the MB's are the same (GA-7VRX) & the old system ran with 220W, the newer one should also function. Clarify these questions for me sebaswis. Mike

Posted on Dec 18, 2008

  • Mike Peluso
    Mike Peluso Dec 19, 2008

    Hi sebaswis, thanks for adding more information. I wouldn't run anything lower than a 300W power supply on this board.

    Back to the CPU. I looked up the specs for the CPU:

    Go to the bottom of the page.

    Try setting the MB switches for the CPU to the default settings first & than try booting the system.

    If the system does not function than change the switches to:

    Set SW1 switch to, "1:CPU CLOCK." (Using the CPU FSB).

    Change, CLK_RATIO to 11.

    The FSB of the CPU is 166MHz x 11. = 1826MHz. If you set the ratio to 11.5 you'll go over the CPU max speed. 11.5 would force the CPU to run at 1909MHZ.

    That would be known as over-clocking. See if the CPU & fan runs.

    Allot of ATX power supplies that come with a 24-pin_12V main MB power connector can still be reduced to a 20-pin_12V connector.

    Like this one: (The added 4-pin end can be separated but not completely removed, you just don't plug it in).

    Enjoy your vacation!

    Merry Xmiss.




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