491960-004 HP 2.1GHz 1800MHz HTL 512KB L2 Cache Socket S1 (S1g2) AMD Mobile Sempron SI-42 1-Core Processor

The part number 491960‑004 identifies an HP‑specific AMD Mobile Sempron SI‑42 processor designed for notebook platforms. It features a single processing core operating at a clock speed of 2.1 GHz and utilizes a 1800 MHz HTL bus interface. The chip includes 512 KB of Level‑2 cache to improve data access efficiency and is built for the Socket S1 (S1g2) socket type, ensuring compatibility with HP systems that employ this mobile socket standard. As a mobile‑oriented CPU, it balances performance and power consumption for everyday computing tasks in thin‑and‑light laptop configurations.