Ownership Submission
FORM 3
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Rutherford John C
2. Date of Event Requiring Statement (Month/Day/Year)
06/09/2005
3. Issuer Name and Ticker or Trading Symbol
Rackable Systems, Inc. [RACK]
(Last)
(First)
(Middle)
75 STATE STREET, 26TH FLOOR
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

BOSTON, MA 02109
6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)
2. Amount of Securities Beneficially Owned
(Instr. 4)
3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)
4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock (1) 8,224,937
I
By Parthenon Investors II, L.P. (2)
Common Stock (1) 69,784
I
By PCIP Investors (3)
Common Stock (1) 126,315
I
By J&R Founders' Fund, L.P. (4)
Series B Preferred stock 16,419,753
I
By Parthenon Investors II, L.P. (2)
Series B Preferred Stock 139,241
I
By PCIP Investors (3)
Series B Preferred Stock 252,167
I
By J&R Founders' Fund, L.P. (4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)
2. Date Exercisable and Expiration Date
(Month/Day/Year)
3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)
4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)
6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Rutherford John C
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    
JACQUET ERNEST K
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    
PARTHENON INVESTORS II L P
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    
PCIP Investors
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    
PCap Partners II, LLC
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    
J&R Founders Fund, L.P.
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    
J&R Advisors F.F., Inc.
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    
PCap II, LLC
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    
J&R Investment Management Company, LLC
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    
Parthenon Capital, LLC
75 STATE STREET
26TH FLOOR
BOSTON, MA 02109
    X    

Signatures

John C. Rutherford 06/09/2005
**Signature of Reporting Person Date

Ernest K. Jacquet 06/09/2005
**Signature of Reporting Person Date

John C. Rutherford, managing member of PCap II, LLC, the managing member of PCap Partners II, LLC, the general partner of Parthenon Investors II, L.P. 06/09/2005
**Signature of Reporting Person Date

John C. Rutherford, managing member of PCap II, LLC, the managing member of PCap Partners II, LLC 06/09/2005
**Signature of Reporting Person Date

John C. Rutherford, managing member of PCap II, LLC 06/09/2005
**Signature of Reporting Person Date

John C. Rutherford, Director, President and Secretary of J&R Advisors F.F., Inc., the general partner of J&R Founders' Fund, L.P. 06/09/2005
**Signature of Reporting Person Date

John C. Rutherford, Director, President and Secretary of J&R Advisors F.F., Inc. 06/09/2005
**Signature of Reporting Person Date

John C. Rutherford, managing member of J&R Investment Management Company, LLC, the managing member of Parthenon Capital, LLC, the managing partner of PCIP Investors 06/09/2005
**Signature of Reporting Person Date

John C. Rutherford, managing member of J&R Investment Management Company, LLC, the managing member of Parthenon Capital, LLC 06/09/2005
**Signature of Reporting Person Date

John C. Rutherford, managing member of J&R Investment Management Company, LLC 06/09/2005
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) The Reporting Persons may be deemed to be members of a Section 13(d) group that owns more than 10% of the Company's outstanding Common Stock. However, the Reporting Persons disclaim membership, and this report shall not be deemed an admission that the Reporting Persons are a member of a Section 13(d) group that owns more than 10% of the Company's outstanding Common Stock for purposes of Section 16 or for any other purpose.
(2) Shares held by Parthenon Investors II, L.P. ("Parthenon"). John C. Rutherford ("JCR") and Ernest K. Jacquet ("EKJ") are the managing members of PCap II LLC, which is the managing member of PCap Partners II, LLC, which is the general partner of Parthenon. JCR and EKJ disclaim beneficial ownership of such shares except to the extent of the pecuniary interest therein.
(3) Shares held by PCIP Investors ("PCIP"). JCR and EKJ are the managing members of J&R Investment Management Company, LLC, which is the managing member of Parthenon Capital, LLC, which is the managing partner of PCIP. JCR and EKJ disclaim beneficial ownership of such shares except to the extent of the pecuniary interest therein.
(4) Shares held by J&R Founders' Fund, L.P. ("Founders"). JCR and EKJ are controlling persons of J&R Advisors F.F., Inc., which is the general partner Founders. JCR and EKJ disclaim beneficial ownership of such shares except to the extent of the pecuniary interest therein.

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