Hewlett-Packard (HPQ 1.55%) has begun the search for a new board chairman following Raymond Lane's decision to vacate the job. Ralph Whitworth, currently an HP director, will take up the position on an interim basis until a new chairman is found.

Lane will stay on as a director at the company.

Additionally, HP announced that two other directors have resigned from the board. John Hammergren and G. Kennedy Thompson are to depart in May, serving until that month's board meeting. As with the chairman position, the company has begun a search for replacements.

Hammergren and Thompson are both longtime board members. They have been directors for eight and seven years, respectively.