EU antitrust regulators are expected to say this week that Intel Corp illegally paid computer makers to postpone or cancel the launch of products containing chips made by its main rival, sources familiar with the case said yesterday.

The European Commission is set to decide tomorrow to fine the world's largest chipmaker and order changes to its business practices for what the EU executive sees as "naked restrictions" to competition, the sources said.

There was no indication of how big a fine might be levied. The largest fine levied by the EC for an abuse of market dominance was the 497 million euros ($655 million) demanded from Microsoft in 2004.