POWER OF ATTORNEY

(Section 16(a) Reporting)

	KNOW ALL PERSONS BY THESE PRESENTS, that the undersigned, an
officer, director and/or shareholder of RadiSys Corporation
the "Company"), does hereby constitute and appoint the Chief
Executive Officer of the Company, the Chief Financial Officer
of the Company, the Corporate Treasurer of the Company, their
respective successors in such offices, and each of them, his
or her true and lawful attorney and agent to execute in his or
her name any and all reports required to be filed under Section 16(a)
of the Securities Exchange Act of 1934 with respect to equity
securities of the Company; and to file the same with the Securities
and Exchange Commission and any applicable stock exchange; and
the undersigned does hereby ratify and confirm all that said
attorneys and agents, or any of them, shall do or cause to be
done by virtue hereof.

This Power of Attorney revokes all prior Powers of Attorney
relating to reporting under Section 16(a) and shall remain in
effect until revoked by a subsequently filed instrument.

Dated: January 20, 2005

Signature:  /s/ Lorene K. Steffes