I just built up a PC with a Conroe E6600 processor, Patriot DDR2 667 RAM, and an Asrock ConroeXFire-eSataII motherboard. Everything else in the system (PSU, HD, video card) are known working components from the system I am upgrading.
The problem is that the board does not power up at all. The fans don't spin even for an instant, no lights come on, and I don't get error code beeps. It just seems completely dead. I've tried swapping the PSU with a brand new Antec SmartPower 500, as well as removing all the PCI and PCIe cards (including video). I've tried removing DIMMs and moving them around, and I've also removed and reseated the CPU and PSU power connections.
Can anyone think of anything I've overlooked that would cause this behavior? Would a bad CPU or memory cause the board to go completely dead like that, or would I at least see some momentary power on the fans or some beeps or something?
I'm not really sure where to probe to check voltages, but I reasoned that the header pins that connect to the front power switch probably have some voltage on them, so I probed across the power button pin and GND. With one power supply I registered 300mV DC, and with the replacement PSU I got 0V. Does anyone know what voltage shoudl typically be on this pin? Is this a resonable test? Since the power button works by shorting the power pin to ground, can I assume that even on an unpowered system there should be a positive voltage on the power button pin? Where else would you recommend probing to determine if the mobo and PSU are applying power to the system?
I've built quite a few systems but it has been a while since I've seen one that was as DOA as this one is. I'm hoping I didn't fry the CPU somehow (I do observe ESD precautions when handling motherboard components, including a grounded wrist strap and ESD mat).
Any advice is welcome. Is this mobo known to have a high incidence of DOA?
The problem is that the board does not power up at all. The fans don't spin even for an instant, no lights come on, and I don't get error code beeps. It just seems completely dead. I've tried swapping the PSU with a brand new Antec SmartPower 500, as well as removing all the PCI and PCIe cards (including video). I've tried removing DIMMs and moving them around, and I've also removed and reseated the CPU and PSU power connections.
Can anyone think of anything I've overlooked that would cause this behavior? Would a bad CPU or memory cause the board to go completely dead like that, or would I at least see some momentary power on the fans or some beeps or something?
I'm not really sure where to probe to check voltages, but I reasoned that the header pins that connect to the front power switch probably have some voltage on them, so I probed across the power button pin and GND. With one power supply I registered 300mV DC, and with the replacement PSU I got 0V. Does anyone know what voltage shoudl typically be on this pin? Is this a resonable test? Since the power button works by shorting the power pin to ground, can I assume that even on an unpowered system there should be a positive voltage on the power button pin? Where else would you recommend probing to determine if the mobo and PSU are applying power to the system?
I've built quite a few systems but it has been a while since I've seen one that was as DOA as this one is. I'm hoping I didn't fry the CPU somehow (I do observe ESD precautions when handling motherboard components, including a grounded wrist strap and ESD mat).
Any advice is welcome. Is this mobo known to have a high incidence of DOA?
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