Tom's Hardware > Forum > Motherboards & Memory > Gigabyte > MA785GM-US2H: Optical Drive Not Recognized

MA785GM-US2H: Optical Drive Not Recognized

Forum Motherboards & Memory : Gigabyte - MA785GM-US2H: Optical Drive Not Recognized

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one800   10-27-2009 at 02:37:55 AM

I recently built a system with a Gigabyte MA785GM-US2H and an AMD Phenom II 550. Here's the rest of the system:

Gigabyte MA785GM-US2H
AMD Phenom II 550, now a quad
3 GB DDR2 800
(2) Seagate Barracuda 320GB
Lite-On DVD-CD-RW Disc Drive

Clearing the CMOS will somehow allow the DVD drive to appear under "Detecting IDE Devices...", and subsequent restarts will not change that.

However, when the system is turned off and then powered on, the DVD drive is not recognized after nearly a minute of "Detecting IDE Devices...".

The Hard Drives are attached to SATA2_0 and SATA_2 on the board; the DVD drive is attached to SATA2_1.

Obviously I don't want to clear CMOS after every shutdown; your help is appreciated.

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damian86   10-27-2009 at 03:17:02 AM

one800 wrote :

I recently built a system with a Gigabyte MA785GM-US2H and an AMD Phenom II 550. Here's the rest of the system:

Gigabyte MA785GM-US2H
AMD Phenom II 550, now a quad
3 GB DDR2 800
(2) Seagate Barracuda 320GB
Lite-On DVD-CD-RW Disc Drive

Clearing the CMOS will somehow allow the DVD drive to appear under "Detecting IDE Devices...", and subsequent restarts will not change that.

However, when the system is turned off and then powered on, the DVD drive is not recognized after nearly a minute of "Detecting IDE Devices...".

The Hard Drives are attached to SATA2_0 and SATA_2 on the board; the DVD drive is attached to SATA2_1.

Obviously I don't want to clear CMOS after every shutdown; your help is appreciated.





I dont get what you are saying(i have marked it in bold)You will need to clear CMOS if you had a power issue,overheating, problems after overclocking cpu problems...,so it will reset everything to default.
have you tried to connect it to sata2_2? or a different port, just make sure you are pluging it to the next port your system is attached to. make sure it will appear on the bios as slave,not as master,





Reply to damian86
roonj   10-27-2009 at 04:18:37 AM

If the 785 is like most Gigabyte boards you can move it to SATA 4 or 5 and have independent modes which differ from the harddrive settings. Connectors 0,1,2,3 can be set to any mode while 4,5 can use any mode independent of the first four. Short of that I would suspect a faulty cable going to the optical drive.

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Silver Motherboards badge bilbat   10-27-2009 at 05:16:36 PM

This one has only five channels; put your hard drives on channels SATA2_0, and SATA2_1, move your DVD to SATA2_4; configure your BIOS, on the "Integrated Peripherals" page:
"OnChip IDE Channel" to "Disabled" (as you're not using it anyway - no sense 'wasting' the interrupt...)
"OnChip SATA Controller" to "Enabled"
"OnChip SATA Type" to "Native IDE" (assuming your pair of HDDs are not in a RAID...)
"OnChip SATA Port4/5 Type" should work either way - you probably want to try "IDE" first...

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one800   10-28-2009 at 02:48:04 AM

bilbat wrote :

This one has only five channels; put your hard drives on channels SATA2_0, and SATA2_1, move your DVD to SATA2_4; configure your BIOS, on the "Integrated Peripherals" page:
"OnChip IDE Channel" to "Disabled" (as you're not using it anyway - no sense 'wasting' the interrupt...)
"OnChip SATA Controller" to "Enabled"
"OnChip SATA Type" to "Native IDE" (assuming your pair of HDDs are not in a RAID...)
"OnChip SATA Port4/5 Type" should work either way - you probably want to try "IDE" first...



It didn't work, but I'll swap out the DVD drive's SATA cable with one I got with the motherboard and see what happens.

Reply to one800
one800   10-28-2009 at 02:51:31 AM

On an unrelated note, I have an HP card reader (internal) I am having trouble finding a place on the board to hook it up. It requires a four pin connector slot, I believe. Any suggestions?

UPDATE: Connected it to F_USB2 and it works!@!


Message edited by one800 on 10-28-2009 at 03:10:48 AM
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