We have an Intel DH87MC based system that fails to POST if the power is disconnected from the mainboard for any reason. While power is continuously connected, the system starts, restarts etc. normally. If the power is disconnected, when you reconnect the power and press the 'power' button, the system fan starts and continues to run, the hard drive makes noise for about 2 secs, but there is no POST and no display. If you momentarily disconnect the power again and reconnect (or hold the power button for 5 secs to cut power to the mainboard) the system then starts again and there is a screen advising that the BIOS failed to POST on previous attempt. We 'cancel' to continue and the system boots into Windows just fine. We had this problem with the BIOS that came preloaded on the board and updated to the latest (version 47) as suggested by Intel Australia channel support, but we still have the problem. We've also tried different speed RAM, with and without PCI graphics card, new BIOS battery etc. We just can't deliver a computer to a customer and tell them that they have to perform certain tricks to get it going if it ever loses power to the mainboard. And seeing as the customer has to take it home to his home and set it up on his desk, then he will certainly have to perform those tricks the first time he tries to start it.
I'm hoping somebody has an answer because we won't get paid until the customer gets his working computer.DH87
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DH87MC cold boot issue
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