ASUS P5B Plus motherboard - no any drives found - how to restore RAID array?

Posted by Moha on Super User See other posts from Super User or by Moha
Published on 2013-10-24T09:06:03Z Indexed on 2013/10/24 10:00 UTC
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hard-drive

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motherboard

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bios

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raid

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sata

We have a small server machine with an ASUS P5B Plus motherboard and 4 SATA HDDs. The HDDs were configured in a RAID10 array. Up until now, everything worked fine, but now the system doesn't recognize the drives. BIOS is set to RAID, jMicron controller is set to RAID, yet I can't see any of the drives in the BIOS setup, and jMicron BIOS tells me "no any drives found"

The HDDs all spin up, I hear no clicking sounds or anything that would suggest HDD error.

I did a search on this problem and replaced the SATA cables as suggested, but nothing's changed. What I have in mind is checking the CMOS battery and resetting the BIOS to use IDE mode, but I don't know if it will ruin the RAID system on the HDDs. It is not a critical server and there's only one database running on it (which I have backup of), but I don't want to setup the server from scratch if not necessary.

What should I try to restore the RAID array and put the server back to working order?

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