PCI Express 2.0 question

Im planning on upgrading my PC. Im starting off with the Graphics card. Im planing on switching to ATI and getting somthing like a HD 4850 or if I can afford 4870. As I was shopping around I looked at the requirements and found it Supports PCI 2.0 well at least this is what it said.

• PCI Express® based PC is required with one X16 lane graphics slot available on the motherboard
• 450 Watt or greater power supply with 75 Watt 6-pin PCI Express® power connector recommended (550 Watt for ATI CrossFireX™ with two 6-pin connectors)
• Certified power supplies are recommended. Refer to http://ati.amd.com/certifiedPSU for a list of Certified products
• 1GB of system memory
• Installation software requires CD-ROM drive
• DVD playback requires DVD drive
• Blu-ray™ / HD DVD playback requires Blu-ray / HD DVD drive
• For a complete ATI CrossFireX™ system, a second ATI Radeon™ HD 3850 graphics card, an ATI CrossFireX Ready motherboard and one ATI CrossFireX Bridge Interconnect cable per board (included) are required
• Operating System:
  • Windows Vista (all versions)
  • Windows XP
  • Windows XP Media Center Edition

• Superscalar unified shader architecture
• 320 stream processing units
• 256-bit memory interface
• DirectX® 10.1 / Shader Model 4.1 support
• PCI Express® 2.0 support
• ATI CrossFireX™ multi-GPU support for highly scalable performance
• Use up to four GPUs with an AMD 790FX based motherboard
• High-speed 128-bit HDR (High Dynamic Range) rendering
• Up to 24x Custom Filter Anti-Aliasing
• 55nm process technology
• ATI Avivo™ HD video and display technology
• Built-in HDMI and 5.1 surround audio
• Support for the ATI Radeon™ DVI to HDMI adapter
• Unified Video Decoder (UVD) for Blu-ray™ and HD DVD
• ATI PowerPlay™ energy conserving technology
• Dynamic geometry acceleration
• Game physics processing capability

I have everything but the PCI Express 2.0, I have just a PCI Express 16x. So I was wondering if I actually need a PCI 2.0 or if I can use my PCI Express slot. So my real question is can I use my Motherboard.

Many thanks in advance.

I have everything but the PCI Express 2.0, I have just a PCI Express 16x. So I was wondering if I actually need a PCI 2.0 or if I can use my PCI Express slot. So my real question is can I use my Motherboard.

0Goldeneye0

The card supports pci-e 2.0 but doesn't require it, so it'll work fine on your motherboard. Just make sure that your power supply can handle it.