I have Leopard 10.5.7 installed on my M3A78-EM (amd X2 6000+, sb700 south bridge, 780g chipset) on a Sata hard drive.

(iDeneb 10.5.7 - sb700 kext selected during install)

I was going to use my IDE hard drive as an Applications storage.

However, i'm having a rather odd problem.

OSX will SHOW me the partitions on the drive, and disk utility can format partitions as HFS+.

But it cannot read or write any partition made.
For example: if i try and copy files from the NTFS partition on the IDE drive, it gives a read error.
If i try and copy anything to the HFS+ partition, it gives a write error.
The drive works great in Windows and Ubuntu.

Any tips?

On mine, I don't get any IDE support in Leopard.

My details:

Mobo: Asus M3178-EM (AMD 780G chipset)
CPU: AMD Phenom x4 9600 2.3 GHz

Changed BIOS settings to enable AHCI and ACPI 2.0.

10.5.6 installed with IPC: Voodoo 9.5.0; Realtek R1000 LAN (which I suspect isn't needed) and Seatbelt 10.5.5.

I actually can boot into an IDE DVD ROM drive from the Asus F8 option (and that's what I used to install the Mac OS), but nothing IDE (not even an IDE drive in an external firewire enclosure) is recognized in OS X.

If I learn anything, I'll post it here.

Yeah, my IDE DVD drive works perfect.
Just not the hard drive.
I'm going to get an IDE->Sata converter, so my IDE drive will be connected via SATA....
Hopefully that works. If not, I guess mac is going down the drain.