User`s manual

- 4 -GV-R477 Series Graphics Accelerator
1. Introduction
1.1. Features
• Powered by ATI Radeon
TM
HD 4770 Graphics Processing Unit (GPU)
• Supports PCI Express 2.0
• Integrated with 1GB GDDR5 memory
• Supports DirectX 10.1
• Supports CrossFireX
TM
• Supports 2 Dual-Link DVI-I connectors (by adapters)
• Supports 2 D-Sub connectors (by adapters)
• Supports HDMI connector
1.2. Minimum System Requirements
• Hardware
- Intel
®
Pentium
®
4/Core
TM
2 or AMD Athlon
TM
/Phenom
TM
- 1GB or more of system memory for best performance
- Optical drive for software installation (CD-ROM or DVD-ROM drive)
- A power supply that provides at least 450-watt and with one 75w 6-pin PCIe power
connector is required. The power supply should be with a known brand and certified
to conform to safety regulations. (For the list of certified power supplies, go to
http://ati.amd.com/certifiedpsu.)
• Operating System
- Windows
®
7
- Windows
®
Vista
- Windows
®
XP with Service Pack 2 (SP2)
- Windows
®
XP Professional x64 Edition
• CrossFireX
TM
Configuration
If you are planning on using this graphics card as part of a CrossFireX system, the following
is required:
- A CrossFireX certified motherboard with two PCI Express x16 slots and correct chipset driver
- Two GV-R477UD-1GI
- A power supply that provides at least 550-watt and with two 6-pin PCIe power
connectors is required. The power supply should be with a known brand and certified to
conform to safety regulations. (For the list of certified power supplies, go to
http://ati.amd.com/certifiedpsu.)
- One or two CrossFire bridge interconnect cables