April 25 (Reuters) - Intel forecast second-quarter revenue below market estimates on Thursday, as it faces weak demand for its traditional data center and personal computer chips amid efforts to build its contract manufacturing business.

The Santa Clara, California-based company expects second-quarter revenue in the range of $12.5 billion to 13.5 billion, compared with analysts' average estimate of $13.57 billion, according to LSEG data.

(Reporting by Arsheeya Bajwa in Bengaluru; Editing by Shilpi Majumdar)