Title : AMD Sempron Mobile CPU SMS3500HAX4CM 1.8 GHz Description : I pulled this brand new CPU out of a DELL Inspiron 1501 notebook. The CPU is guaranteed to work 100%. If you have a AMD socket S1 notebook this CPU is fast and support 64 bit OS. Type CPU / Microprocessor Family AMD Mobile Sempron Part number SMS3500HAX4CM Frequency (MHz) ? 3500+ (rated) 1800 (real) Package 638-pin lidless micro-PGA 1.38" x 1.38" (3.5 cm x 3.5 cm) Socket Socket S1 Architecture / Microarchitecture Manufacturing process 0.09 micron Data width 64 bit Floating Point Unit Integrated Level 1 cache size ? 64 KB instruction cache 64 KB data cache Level 2 cache size ? 512 KB Features MMX Technology 3DNow! SSE SSE2 SSE3 AMD64 technology ? Enhanced Virus Protection ? Low power features PowerNow! technology On-chip peripherals Dual-channel DDR2 SDRAM memory controller One 16-bit HyperTransport link with speeds up to 800 MHz Electrical/Thermal parameters V core (V) ? 1.125 / 1.15 / 1.2 Max operating temperature (°C) ? 95 Thermal Design Power (W) ? 25 Notes on AMD SMS3500HAX4CM Core revision F2 Selling Price : $39 Shipping : $14