Here's the story:
This is a Soyo (SY-)P4RC350 ATI RADEON 9100 PRO IGP/IXP150 chipset based Socket-478 motherboard that I bought some time ago and shelved for the time being. This weekend, I pulled it out to start setting it up for a project. I was hoping to use it for a small media-extender type installation, running Windows XP.
First, things went well -- mostly. I was able to install Windows fine and after spending about a day or so digging out drivers from AMD/ATI, CMI, and VIA for the components (now that Soyo has gone bust). I got it to a point where I could install the software. That's when it starting doing randrom crashes/reboots, which I attributed first to a driver issue (the ATI chipset is known to not be the most stable). I started to restore to a clean Windows install (using disk images I made along the way), I was in the process of debugging when I had to leave for the day.
The next morning, the board would power up, but no longer POST.
I've replaced the CPU, RAM modules, power supply, hard drives, etc. with tested and known working parts (as in they boot fine in another Socket-478 board right now). I've reset the BIOS countless times, even left the board overnight without the CMOS battery and off ATX power to fully drain. I've checked for shorts, even removed the board on its own. No luck.
I do have a PCI-based hex code diagnostics card -- it never goes past the default "00" display, meaning the POST just isn't happening. However, there is power to the board -- the power LED on the motherboard (not the system power LED leads) powers up as soon as the ATX power supply is connected, and the board (CPU, CPU fan, peripherals) power up upon hitting the power button...just no POST.
Any suggestion before I chuck this and/or start salvaging parts off it? What components would you check? The caps all look fine and nothing appears damaged.
Thanks!
This is a Soyo (SY-)P4RC350 ATI RADEON 9100 PRO IGP/IXP150 chipset based Socket-478 motherboard that I bought some time ago and shelved for the time being. This weekend, I pulled it out to start setting it up for a project. I was hoping to use it for a small media-extender type installation, running Windows XP.
First, things went well -- mostly. I was able to install Windows fine and after spending about a day or so digging out drivers from AMD/ATI, CMI, and VIA for the components (now that Soyo has gone bust). I got it to a point where I could install the software. That's when it starting doing randrom crashes/reboots, which I attributed first to a driver issue (the ATI chipset is known to not be the most stable). I started to restore to a clean Windows install (using disk images I made along the way), I was in the process of debugging when I had to leave for the day.
The next morning, the board would power up, but no longer POST.
I've replaced the CPU, RAM modules, power supply, hard drives, etc. with tested and known working parts (as in they boot fine in another Socket-478 board right now). I've reset the BIOS countless times, even left the board overnight without the CMOS battery and off ATX power to fully drain. I've checked for shorts, even removed the board on its own. No luck.
I do have a PCI-based hex code diagnostics card -- it never goes past the default "00" display, meaning the POST just isn't happening. However, there is power to the board -- the power LED on the motherboard (not the system power LED leads) powers up as soon as the ATX power supply is connected, and the board (CPU, CPU fan, peripherals) power up upon hitting the power button...just no POST.
Any suggestion before I chuck this and/or start salvaging parts off it? What components would you check? The caps all look fine and nothing appears damaged.
Thanks!
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