I'm not sure if you still have the IDE drive or you have already replaced it with SATA.
Howsomever, I've recently had a similar problem. I have an old Chaintech board and two IDE HDD (Western Digital). Will get a new Gigabyte board tomorrow, so I wanted to use the old HDDs without taking up the one IDE connector on the new board. Picked up two little IDE-SATA converters with SATA cable(14.95 ea at Microcenter), jumpered both drives to "single" (on WD 9 pin it's 1-2, 7-8) and plugged into SATA ports 0 and 1 on the Chaintech board. Made sure the boot drive was on SATA 0 and that RAID was disabled in BIOS. Works great. Now when the new board is installed, I'll just connect my IDE drives to the Gigabyte SATA ports and fire 'er up. Hope all goes according to plan.