I did not have to force it. I downloaded the Cat 10.9 AHCI driver and it installs just like normal:
QB
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The MONSTER HTPC
CPU: AMD Phenom II X4 965 C2 (140W).||.Cooler: Corsair H80i
MB: Gigabyte 990FXA-UD7.||.RAM: 8 GB Mushkin Blackline DDR3 2000MHz (7-10-8-27-1T)
Case: CoolerMaster HAF 932.||.PSU: Corsair HX750
GPU:HIS IceQ 5 Radeon HD 5770 Turbo 1GB.||.Audio: Creative X-Fi Titanium Fatal1ty Pro w/ Logitech Z-5300e (5.1, 280W-RMS)
Drive: 2xKingston SSD 40GB RAID0.||.Storage: 6TB (4x500GB Caviar Black RAID0, 2TB Hitachi & 2TB Caviar Green)