ASUS M5A97 R2.0 does not detect hard drive

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Guest

Guest
Hi.

I have a new PC build (motherboard, CPU, graphics card, RAM, PSU), but the BIOS sometimes does not detect the one hard drive.

I have two hard drives that worked perfectly in the old system, with an ASUS M3N78 Pro motherboard. But in this new system, the one hard drive is sometimes not detected. Checks on both hard drives show they are working fine, with no problems or corrupt sectors.

I have changed the SATA and power cables, and plugged the hard drive into different SATA ports, but it makes no difference. Sometimes the BIOS refuses to detect the one hard drive no matter what I do. The hard drive affected is not the boot drive.

Motherboard - ASUS M5A97 R2.0. Board came with latest BIOS version.
Samsung 830 SSD (SATA 3) - set to AHCI mode. BIOS always detects this.
Samsung HD103SJ Spinpoint F3 (SATA 2) - set to IDE mode. BIOS sometimes does not detect this.
LG DVD-RW drive SATA - set to IDE mode. BIOS always detects this.

If I set the hard drive to AHCI mode, it never gets detected by the BIOS. I am starting to wonder if there is a fault with the new motherboard. Any help would be much appreciated! Thanks.
 
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SuperSoph_WD

SuperSoph_WD

Glorious
Jul 30, 2014
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Welcome to Tom's Hardware, eaglewolf!

I'd suggest you to try resetting BIOS by using any of the methods listed here: http://www.wikihow.com/Reset-Your-BIOS
This will get the BIOS settings back to default. I'd also suggest you to check the mobo manufacturer's website for any updates of the firmware. You should be able to find this by searching for support of your motherboard's model.

Hopefully this will fix your issue! Keep me posted! :)
SuperSoph_WD
 
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G

Guest

Guest
Thanks for the reply. I reset my BIOS with no success, and the mobo website has the same BIOS version as I have.

However....... I have solved the problem! It would seem this specific SATA2 hard drive is not compatible with SATA3 motherboards. In theory it should work, but it doesn't. I have tested the drive on two different SATA3 motherboards, and they don't detect it. Yet a SATA2 motherboard detects the drive straight away. The hard drive passes all checks I have done on it, and it will work when plugged into an external hard drive caddy and connected via USB. Another SATA2 hard drive I had, was detected by the motherboard fine.

So the problem is this specific Samsung HD103SJ Spinpoint F3 SATA2 hard drive is not detected when connected to a SATA3 motherboard. I have now bought a new SATA3 hard drive to replace it.
 
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