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                                                        OMB APPROVAL
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                                              OMB Number:             3235-0145
                                              Expires:        December 31, 2005
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                                 UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                               

                                  SCHEDULE 13G
                    Under the Securities Exchange Act of 1934
                               (Amendment No. 1)*



                               Avocent Corporation
-------------------------------------------------------------------------------
                                (Name of Issuer)



                         Common Stock, $0.001 par value
-------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                    053893103
                  --------------------------------------------
                                 (CUSIP Number)



                                 August 31, 2005
-------------------------------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)


Check the  appropriate box to designate the rule pursuant to which this Schedule
is filed:

[X] Rule 13d-1(b)

[_] Rule 13d-1(c)

[_] Rule 13d-1(d)


*The  remainder of this cover page shall be filled out for a reporting  person's
initial filing on this form with respect to the subject class of securities, and
for any  subsequent  amendment  containing  information  which  would  alter the
disclosures provided in a prior cover page.


The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the  Securities  Exchange  Act of
1934 ("Act") or otherwise  subject to the liabilities of that section of the Act
but  shall be  subject  to all other  provisions  of the Act  (however,  see the
Notes).



Persons who respond to the collection of information  contained in this form are
not required to respond  unless the form displays a currently  valid OMB control
number.

SEC 1745 (12-02)                       

                                Page 1 of 4 pages


-----------------------
  CUSIP No. 053893103                     13G
-----------------------

------------------------------------------------------------------------------
 1.   Name of Reporting Person
      I.R.S. Identification No. of above Person

           Goldman Sachs Asset Management, L.P.

------------------------------------------------------------------------------
 2.   Check the Appropriate Box if a Member of a Group
                                                                (a) [_]
                                                                (b) [_]

------------------------------------------------------------------------------
 3.   SEC Use Only
 


------------------------------------------------------------------------------
 4.   Citizenship or Place of Organization
 
           Delaware

------------------------------------------------------------------------------
                     5.   Sole Voting Power
                     
     Number of                4,453,445

      Shares        ----------------------------------------------------------
                     6.   Shared Voting Power
   Beneficially      
                               0
     Owned by
                    ----------------------------------------------------------
       Each          7.   Sole Dispositive Power
                     
    Reporting                  4,931,081

      Person        ----------------------------------------------------------
                     8.   Shared Dispositive Power
       With:          
                               0
                               
------------------------------------------------------------------------------
 9.   Aggregate Amount Beneficially Owned by Each Reporting Person
 
           4,931,081

------------------------------------------------------------------------------
10.   Check if the Aggregate Amount in Row (9) Excludes Certain Stock

                                                                    [_]

------------------------------------------------------------------------------
11.   Percent of Class Represented by Amount in Row (9)

           10.1%

------------------------------------------------------------------------------
12.   Type of Reporting Person

           IA

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

                      

                                Page 2 of 4 pages

Item 4.            Ownership. *

          (a).     Amount beneficially owned:
                   See the response(s) to Item  9 on the attached cover page(s).

          (b).     Percent of Class:
                   See the response(s) to Item 11 on the attached cover page(s).

          (c).     Number of shares as to which such person has:

                   (i).     Sole power to  vote or to direct  the vote:  See the
                            response(s) to Item 5 on the attached cover page(s).
                            
                   (ii).    Shared power to vote or to direct the vote:  See the
                            response(s) to Item 6 on the attached cover page(s).
                            
                   (iii).   Sole power to  dispose or to direct  the disposition
                            of:  See the response(s) to  Item 7  on the attached
                            cover page(s).

                   (iv).    Shared power to dispose or to direct the disposition
                            of:  See the response(s) to  Item 8  on the attached
                            cover page(s).

Item 10.           Certification.
                   By signing  below I certify that, to the best of my knowledge
                   and belief,  the  securities  referred to above were acquired
                   and are held in the ordinary  course of business and were not
                   acquired  and are not  held  for the  purpose  of or with the
                   effect of changing or  influencing  the control of the issuer
                   of the  securities  and were not acquired and are not held in
                   connection with or as a participant in any transaction having
                   that purpose or effect.

--------------------------
     * In accordance with Securities and Exchange Commission ("SEC") Release No.
34-39538  (January 12, 1998),  this filing reflects the securities  beneficially
owned by  Goldman  Sachs  Asset  Management,  L.P.  ("GSAM  LP").  GSAM  LP,  an
investment advisor, disclaims beneficial ownership of any securities managed, on
GSAM LP's behalf, by third parties.



                                Page 3 of 4 pages




                                    SIGNATURE



            After reasonable inquiry and to the best of my knowledge
            and belief,  I certify that the information set forth in
            this statement is true, complete and correct.


Date:  September 7, 2005


                                GOLDMAN SACHS ASSET MANAGEMENT, L.P.

                                By: /s/ Ted Chang
                                   ----------------------------------------
                                Name:   Ted Chang
                                Title:  Attorney-in-fact



                                Page 4 of 4 pages