SCHEDULE 14A INFORMATION

                Proxy Statement Pursuant to Section 14(a) of the
                         Securities Exchange Act of 1934
                               (Amendment No. ___)

Filed by the Registrant [X]

Filed by a Party other than the Registrant

Check the appropriate box:
[ ]  Preliminary Proxy Statement
[ ]  Confidential, for Use of the Commission Only (as permitted by
     Rule 14a-6(e)(2))
[ ]  Definitive Proxy Statement
[X]  Definitive Additional Materials
[ ]  Soliciting Material Pursuant to Section 240.14a-11(c) or
     Section 240.14a-12


                         SEQUENT COMPUTER SYSTEMS, INC.
- -------------------------------------------------------------------------------
                (Name of Registrant as Specified in its Charter)

- -------------------------------------------------------------------------------
     (Name of Person(s) Filing Proxy Statement if other than the Registrant)

Payment of Filing Fee (Check the appropriate box):

[X]  No fee required

[ ]  Fee computed on table below per Exchange Act Rules 14a-6(i)(1) and 0-11

     1)   Title of each class of securities to which transaction applies:


          ---------------------------------------------------------------------

     2)   Aggregate number of securities to which transaction applies:


          ---------------------------------------------------------------------

     3)   Per unit price or other underlying value of transaction computed
          pursuant to Exchange Act Rule 0-11: Set forth the amount on which the
          filing fee is calculated and state how it was determined.


          ---------------------------------------------------------------------

     4)   Proposed maximum aggregate value of transaction:


          ---------------------------------------------------------------------

     5)   Total fee paid:


          ---------------------------------------------------------------------

[ ]  Fee paid previously with preliminary materials.

[ ]  Check box if any part of the fee is offset as provided by Exchange Act Rule
     0-11(a)(2) and identify the filing for which the offsetting fee was paid
     previously. Identify the previous filing by registration statement number,
     or the Form or Schedule and the date of its filing.

     1)   Amount Previously Paid:

          ---------------------------------------------------------------------
     2)   Form, Schedule or Registration Statement No.:

          ---------------------------------------------------------------------
     3)   Filing Party:

          ---------------------------------------------------------------------
     4)   Date Filed:

          ---------------------------------------------------------------------

[Sequent logo]
- --------------------------------------------------------------------------------




                               IMPORTANT REMINDER


                                                 September 9, 1999

Dear Shareholder:

     We have previously mailed to you proxy materials relating to the Special
Meeting of Shareholders of Sequent Computer Systems, Inc. to be held on Friday,
September 24, 1999.

     According to our latest records, we have not received your proxy card for
this important meeting. Regardless of the number of shares you own, it is
important that they are represented at the meeting. If you have not already
mailed your proxy card, please take a moment to sign, date and mail the enclosed
duplicate proxy card promptly in the return envelope provided for your
convenience.

     For the reasons set forth in the Proxy Statement dated August 20, 1999,
your Board of Directors unanimously recommends that you vote "FOR" the merger.

     Thank you for your cooperation and continued support.

                                       Sincerely,

                                       KARL C. POWELL, JR.

                                       Karl C. Powell, Jr.
                                       Chairman of the Board
                                       and Chief Executive Officer



                         SEQUENT COMPUTER SYSTEMS, INC.
                15450 SW KOLL PARKWAY o BEAVERTON, OR 97006-6063
   PHONE: (503) 626-5700 o FAX: (503) 578-9890 o URL: http://www.sequent.com/