Question about EPoX EP-8RDA3I Motherboard

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Port Debug LED: 50

Hello. For the last 5 years I haven't had any major problems with my EP-8RDA3I motherboard, but for the last couple of days my computer stopped booting up.I looked inside the case and it stops responding when it reaches 50h acording to the Debug LED which stands for: USB Initialization. Any clue as to how I might fix it? Thanks for your replys.

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  • kmnwolfman Aug 11, 2007

    Thanks for your solutions guys. I did manage to fix the problem by removing the CMOS battery for a few minutes, have no idea if the motherboard actualy has a clear CMOS jumper.
    After that everything worked like a charm.



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POST 50 for Award BIOS + nForce2 chipset - usually is South Bridge problem (chip in area AGP/first PCI with name nVIDIA MCP) - integrated to him USB-controller. Chek it temperature, try press to him and start computer. If it can boot - need to burn/solder SouthBridge chip. Else - need to change (resold) this chip with another good. Another chance is Clear CMOS. If system can boot, but after Save CMOS in (BIOS Setup) POST-card stop at POST 50 again - need to change SB too. Third chance (but unlikely) - reflash BIOS with any (may be old) version. It can to do on any nVidia systems or another use LPC flash (details can read in article ). 1. Check temperature of South Bridge (

Posted on Aug 10, 2007


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Hi, two possible things to try. First reinstall your O/S [I am assuming you are running XP] To save your current settings do not select the first prompt by WIN setup to repair the current instalation, press enter install. At the second prompt to repair press "R" to repair.The drivers for USB2 are in XPservice pack 2. Second , if you are unable to get to the setup stage then go online with a friends computer and log onto your mobo manufacturers home page and download the latest BIOS for your board, burn this to a CD, then set your computer to boot from CD and flash the bios to the new version. goodluck, regards mistyman

Posted on Aug 09, 2007


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