Question about HP Compaq Business d530 Small Form Factor PC Desktop

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D530s will not power up, odd blinking green LED on mobo

I have been all through HP docs and no info to be found. My D530s shut off unexpectedly when I unplugged a USB device. It will not turn back on, when I press and hold the power button the power LED blinks green constantly at a medium-fast rate and continues to do so until I let go of the power button. No system activity or power on occurrs. If I look at the mainboard, the green LED by the CMOS battery is blinking constantly at a medium-fast pace (no sequences, it is constant blinking at same rate). If I unplug power it keeps blinking green until the caps drain out. When I plug in power it starts blinking again. What do I need to replace, anyone know? HP's site has no info on this and i've been through all of the tech docs. thanks in advance-

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Re: D530s will not power up, odd blinking green LED on...

Ok, this is acting as if your MB is getting power but doing nothing with it. This very well could be a MB problem where something (unknown without looking at it) is fried. Just for grins, take the cmos battery out and let the pc sit for 1/2 to 1 hr before putting it back. If this does not work, I would contact HP for a replacement MB.

Posted on Aug 17, 2007

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