Exhibit 24

POWER OF ATTORNEY

(Form S-8 Registration Statement for 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan)

     The undersigned, an officer and/or director of RadiSys Corporation (the “Company”), does hereby constitute and appoint Scott C. Grout and Julia Harper, and each of them, his true and lawful attorney and agent to do any and all acts and things and to execute in his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) any and all instruments which said attorney and agent may deem necessary or advisable in order to enable the Company to comply with the Securities Act of 1933, as amended, and any requirements of the Securities and Exchange Commission in respect thereof, in connection with the registration under the Securities Act of 1933, as amended, of shares of Common Stock of the Company issuable pursuant to the Company’s 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan, including specifically, but without limitation, power and authority to sign his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) to a Registration Statement on Form S-8 and any amendment thereto (including any post-effective amendment) or application for amendment thereto in respect to such Common Stock or any exhibits filed therewith; and to file the same with the Securities and Exchange Commission; and the undersigned does hereby ratify and confirm all that said attorney and agent shall do or cause to be done by virtue hereof.

DATED: May 12, 2003.

          /s/ C. Scott Gibson                  

Signature

C. Scott Gibson

Type or Print Name

POWER OF ATTORNEY

(Form S-8 Registration Statement for 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan)

     The undersigned, an officer and/or director of RadiSys Corporation (the “Company”), does hereby constitute and appoint Scott C. Grout and Julia Harper, and each of them, his true and lawful attorney and agent to do any and all acts and things and to execute in his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) any and all instruments which said attorney and agent may deem necessary or advisable in order to enable the Company to comply with the Securities Act of 1933, as amended, and any requirements of the Securities and Exchange Commission in respect thereof, in connection with the registration under the Securities Act of 1933, as amended, of shares of Common Stock of the Company issuable pursuant to the Company’s 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan, including specifically, but without limitation, power and authority to sign his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) to a Registration Statement on Form S-8 and any amendment thereto (including any post-effective amendment) or application for amendment thereto in respect to such Common Stock or any exhibits filed therewith; and to file the same with the Securities and Exchange Commission; and the undersigned does hereby ratify and confirm all that said attorney and agent shall do or cause to be done by virtue hereof.

DATED: May 13, 2003.

         /s/ James F. Dalton                  

Signature

James F. Dalton

Type or Print Name

POWER OF ATTORNEY

(Form S-8 Registration Statement for 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan)

     The undersigned, an officer and/or director of RadiSys Corporation (the “Company”), does hereby constitute and appoint Scott C. Grout and Julia Harper, and each of them, his true and lawful attorney and agent to do any and all acts and things and to execute in his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) any and all instruments which said attorney and agent may deem necessary or advisable in order to enable the Company to comply with the Securities Act of 1933, as amended, and any requirements of the Securities and Exchange Commission in respect thereof, in connection with the registration under the Securities Act of 1933, as amended, of shares of Common Stock of the Company issuable pursuant to the Company’s 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan, including specifically, but without limitation, power and authority to sign his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) to a Registration Statement on Form S-8 and any amendment thereto (including any post-effective amendment) or application for amendment thereto in respect to such Common Stock or any exhibits filed therewith; and to file the same with the Securities and Exchange Commission; and the undersigned does hereby ratify and confirm all that said attorney and agent shall do or cause to be done by virtue hereof.

DATED: May 13, 2003.

         /s/ Richard J. Faubert                  

Signature

Richard J. Faubert

Type or Print Name

POWER OF ATTORNEY

(Form S-8 Registration Statement for 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan)

     The undersigned, an officer and/or director of RadiSys Corporation (the “Company”), does hereby constitute and appoint Scott C. Grout and Julia Harper, and each of them, his true and lawful attorney and agent to do any and all acts and things and to execute in his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) any and all instruments which said attorney and agent may deem necessary or advisable in order to enable the Company to comply with the Securities Act of 1933, as amended, and any requirements of the Securities and Exchange Commission in respect thereof, in connection with the registration under the Securities Act of 1933, as amended, of shares of Common Stock of the Company issuable pursuant to the Company’s 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan, including specifically, but without limitation, power and authority to sign his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) to a Registration Statement on Form S-8 and any amendment thereto (including any post-effective amendment) or application for amendment thereto in respect to such Common Stock or any exhibits filed therewith; and to file the same with the Securities and Exchange Commission; and the undersigned does hereby ratify and confirm all that said attorney and agent shall do or cause to be done by virtue hereof.

DATED: May 13, 2003.

         /s/ William W. Lattin                  

Signature

William W. Lattin

Type or Print Name

POWER OF ATTORNEY

(Form S-8 Registration Statement for 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan)

     The undersigned, an officer and/or director of RadiSys Corporation (the “Company”), does hereby constitute and appoint Scott C. Grout and Julia Harper, and each of them, his true and lawful attorney and agent to do any and all acts and things and to execute in his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) any and all instruments which said attorney and agent may deem necessary or advisable in order to enable the Company to comply with the Securities Act of 1933, as amended, and any requirements of the Securities and Exchange Commission in respect thereof, in connection with the registration under the Securities Act of 1933, as amended, of shares of Common Stock of the Company issuable pursuant to the Company’s 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan, including specifically, but without limitation, power and authority to sign his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) to a Registration Statement on Form S-8 and any amendment thereto (including any post-effective amendment) or application for amendment thereto in respect to such Common Stock or any exhibits filed therewith; and to file the same with the Securities and Exchange Commission; and the undersigned does hereby ratify and confirm all that said attorney and agent shall do or cause to be done by virtue hereof.

DATED: May 13, 2003.

         /s/ Carl Neun                  

Signature

Carl Neun

Type or Print Name

POWER OF ATTORNEY

(Form S-8 Registration Statement for 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan)

     The undersigned, an officer and/or director of RadiSys Corporation (the “Company”), does hereby constitute and appoint Scott C. Grout and Julia Harper, and each of them, his true and lawful attorney and agent to do any and all acts and things and to execute in his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) any and all instruments which said attorney and agent may deem necessary or advisable in order to enable the Company to comply with the Securities Act of 1933, as amended, and any requirements of the Securities and Exchange Commission in respect thereof, in connection with the registration under the Securities Act of 1933, as amended, of shares of Common Stock of the Company issuable pursuant to the Company’s 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan, including specifically, but without limitation, power and authority to sign his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) to a Registration Statement on Form S-8 and any amendment thereto (including any post-effective amendment) or application for amendment thereto in respect to such Common Stock or any exhibits filed therewith; and to file the same with the Securities and Exchange Commission; and the undersigned does hereby ratify and confirm all that said attorney and agent shall do or cause to be done by virtue hereof.

DATED: May 13, 2003.

         /s/ Jean-Pierre D. Patkay                  

Signature

Jean-Pierre D. Patkay

Type or Print Name

POWER OF ATTORNEY

(Form S-8 Registration Statement for 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan)

     The undersigned, an officer and/or director of RadiSys Corporation (the “Company”), does hereby constitute and appoint Scott C. Grout and Julia Harper, and each of them, his true and lawful attorney and agent to do any and all acts and things and to execute in his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) any and all instruments which said attorney and agent may deem necessary or advisable in order to enable the Company to comply with the Securities Act of 1933, as amended, and any requirements of the Securities and Exchange Commission in respect thereof, in connection with the registration under the Securities Act of 1933, as amended, of shares of Common Stock of the Company issuable pursuant to the Company’s 2001 Nonqualified Stock Option Plan and 1996 Employee Stock Purchase Plan, including specifically, but without limitation, power and authority to sign his name (whether on behalf of the Company or as an officer or director of the Company, or otherwise) to a Registration Statement on Form S-8 and any amendment thereto (including any post-effective amendment) or application for amendment thereto in respect to such Common Stock or any exhibits filed therewith; and to file the same with the Securities and Exchange Commission; and the undersigned does hereby ratify and confirm all that said attorney and agent shall do or cause to be done by virtue hereof.

DATED: May 13, 2003.

         /s/ Jean-Claude Peterschmitt                  

Signature

Jean-Claude Peterschmitt

Type or Print Name