I tried replacing the drive too before finding it was the IDE controller it was having issues with. Here is dmesg from working Fedora Core load.
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
SvrWks CSB5: IDE controller at PCI slot 0000:00:0f.1
SvrWks CSB5: chipset revision 147
SvrWks CSB5: not 100% native mode: will probe irqs later
ide0: BM-DMA at 0x3400-0x3407, BIOS settings: hda:DMA, hdb:DMA
ide1: BM-DMA at 0x3408-0x340f, BIOS settings: hdc:DMA, hdd:pio
Probing IDE interface ide0...
hda: IC35L120AVV207-0, ATA DISK drive
hdb: LG CD-ROM CRN-8245B, ATAPI CD/DVD-ROM drive
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
Probing IDE interface ide1...
hdc: IC35L120AVV207-0, ATA DISK drive
ide1 at 0x170-0x177,0x376 on irq 15