Manufacturer: ARKaMAN’s Custom PC Building Shop Processor: AMD Phenom II X4 955 Black Edition Deneb 3.2GHz AM3 Quad-Core Memory: Mushkin 4GB 240-Pin DDR3 1600 (PC3 12800) Dual Channel Kit Hard Drive: Seagate Barracuda 7200.12 ST3500418AS 500GB 7200 RPM 16MB Video Card: SAPPHIRE Vapor-X Radeon HD 4890 1GB 256-bit GDDR5 Monitor: Samsung SyncMaster 2253BW 22-inch LCD Monitor Sound Card: Onboard Speakers/Headphones: Logitech Z-5500 505 Watts 5.1 Keyboard: Microsoft Multimedia Keyboard Mouse: IntelliMouse Explorer 3.0 Mouse Surface: Mouse Pad Operating System: Windows XP Home 32bit/Windows 7 RC1 32bit Motherboard: ASUS M4A79T Deluxe AM3 DDR3 AMD 790FX ATX AMD Computer Case: Lian Li PC-60B (CUSTOM PAINTED)