-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 VilZ1jZt+c2ZcBItMAE04dscKeMeGoYRfpOZ4JIBQUX2rQJIl+cCZT6ep6rJIuib
 tlSHCg1dAeRCBmLIuxdPoQ==

<SEC-DOCUMENT>0001181431-08-001243.txt : 20080103
<SEC-HEADER>0001181431-08-001243.hdr.sgml : 20080103
<ACCEPTANCE-DATETIME>20080103190343
ACCESSION NUMBER:		0001181431-08-001243
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20071231
FILED AS OF DATE:		20080103
DATE AS OF CHANGE:		20080103

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SILICON GRAPHICS INC
		CENTRAL INDEX KEY:			0000802301
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPUTERS [3571]
		IRS NUMBER:				942789662
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0627

	BUSINESS ADDRESS:	
		STREET 1:		1500 CRITTENDEN LANE
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043
		BUSINESS PHONE:		6509601980

	MAIL ADDRESS:	
		STREET 1:		1500 CRITTENDEN LANE
		STREET 2:		-
		CITY:			MOUNTAIN VIEW
		STATE:			CA
		ZIP:			94043

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SILICON GRAPHICS INC /CA/
		DATE OF NAME CHANGE:	19920703

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EWALD ROBERT H
		CENTRAL INDEX KEY:			0001217872

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-10441
		FILM NUMBER:		08508745

	BUSINESS ADDRESS:	
		STREET 1:		C/O CERIDIAN CORPORATION
		STREET 2:		3311 EAST OLD SHAKOPEE ROAD
		CITY:			MINNEAPOLIS
		STATE:			MN
		ZIP:			55425-1640
		BUSINESS PHONE:		952.853.4077
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd186529.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2007-12-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000802301</issuerCik>
        <issuerName>SILICON GRAPHICS INC</issuerName>
        <issuerTradingSymbol>SGIC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001217872</rptOwnerCik>
            <rptOwnerName>EWALD ROBERT H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O SILICON GRAPHICS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>1140 E. ARQUES AVENUE</rptOwnerStreet2>
            <rptOwnerCity>SUNNYVALE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94085</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2007-12-31</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>F</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>2762</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>18.115</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>43596</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>/s/ Barry J. Weinert as Attorney-in-Fact for Robert H. Ewald</signatureName>
        <signatureDate>2008-01-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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