Boxed CPU AKA Retail Box CPU - includes original heatsink, fan, manual, sticker, box, and 3 year warranty.
Unboxed CPU AKA OEM CPU - just the CPU itself - no extras. Warranty dependent and supplied by retailer.
Rob
Please visit <b><A HREF="http://www.ncix.com/shop/index.cfm?affiliateid=319048" target="_new">http://www.ncix.com/shop/index.cfm?affiliateid=319048</A></b>