EXHIBIT 23.1 CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM We hereby consent to the incorporation by reference in the Registration Statement on Form S-8 (No. 333-50584) and Form S-8 (No. 333-111520) of RadiSys Corporation of our report dated June 11, 2004 relating to the financial statements of the RadiSys Corporation 401(k) Plan, which appears in this Form 11-K. /s/ PricewaterhouseCoopers LLP Portland, Oregon June 28, 2004