Areca Link Width seems low

I have an Areca 1231ML in my Early 2008 MacPro under 10.6.7. The card is supposedly PCIe 8x. I have the card in Slot-2 and System Profiler reports the card is running at 2x. Any ideas how I could get this running at the specified 8x?
Model Name:          Mac Pro
  Model Identifier:          MacPro3,1
  Processor Name:          Quad-Core Intel Xeon
  Processor Speed:          2.8 GHz
  Number Of Processors:          2
  Total Number Of Cores:          8
  L2 Cache (per processor):          12 MB
  Memory:          16 GB
  Bus Speed:          1.6 GHz
  Boot ROM Version:          MP31.006C.B05
  SMC Version (system):          1.25f4
pci17d3,1280:
  Type:          RAID Controller
  Driver Installed:          Yes
  Bus:          PCI
  Slot:          Slot-2
  Vendor ID:          0x17d3
  Device ID:          0x1280
  Subsystem Vendor ID:          0x17d3
  Subsystem ID:          0x1231
  Revision ID:          0x0000
  Link Width:          x2
  Link Speed:          2.5 GT/s
-Charlie

I solved the problem by reseting the PRAM. Back to 8x .

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