Solved Switching from Dual Channel IDE to Standard SATA AHCI

November 6, 2015 at 14:11:25
Specs: Windows 7
I have a Dell Precision T3400 configured for Standard Dual Channel PCI IDE controller. Only IDE drive in the system is a floppy drive for legacy archives. Windows 7 and 10 both did/do not recognize more than two SATA drives, the boot drive and one DVD reader. Want to use a DVD burning drive in addition. Bios (current, A10) does fine with the additional drive but regedit shows the Dual Channel IDE configuration and Windows Explorer doesn't admit there is a second dVD drive.

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November 6, 2015 at 17:25:40
What exactly are you looking for in the Registry?

So, you're saying the third SATA connection is enabled and the optical drive is detected in the BIOS but a drive letter isn't being assigned?

What does Disk Management show?

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November 6, 2015 at 18:56:46
Disk Management shows Disk 0 (hard drive) and CD Rom 0, no others. Device manager under IDE/ATA/ATAPI shows ATA Channel 0, ATA channel 0, ATA channel 1, ATA channel 1, Standard IDE dual channel PCI IDE controller, standard PCI IDE controller. That.s right, everything in duplicate. Three other Dell T3400 in the office show Disk 0, CD Rom 0 and CD Rom 1 in disk management. and Standard SATA AHCI controller in device manager (no listing of individual channels)

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November 6, 2015 at 20:41:04
✔ Best Answer
A floppy drive is not IDE but that's just an aside.

For multiple entries in device manager the first thing to try is to delete both entries and then on reboot let windows set them up again. Another option, if you have no IDE drives connected, is to disable that controller in bios setup.

You apparently want to have three SATA drives. That shouldn't be a problem as long as you have three SATA motherboard connectors. If you don't then you'll have to add a SATA PCI card or have the third drive connected externally via USB. Are you sure the other Dells have three SATA drives or could at least one of the drives be IDE?

You mention what regedit, explorer and disk management see but what really matters is what the bios sees. If the bios sees a drive then windows will see it too.

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Related Solutions

November 7, 2015 at 09:50:58
Bios setup saw the additional drive, windows did not. There are 6 SATA ports on the motherboard. I caught myself in an error about BIOS version, I've upgraded it to A14 but deleting BOTH IDE entries as suggested worked.

message edited by MAJikMartin

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November 7, 2015 at 19:34:20
So all drives are recognized as they should be?

Windows explorer won't see a hard drive until it has a valid partition on it but it should have no problem with optical drives. I don't know why that happened.

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November 8, 2015 at 11:33:07
Yes, all drives recognized. Thanks!

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