Increase memory problem

I have a Sun Fire 250 with 1024 memory space. I want to increase this capacity with one SDRAM of 512 Mo. When I reboot the server the memory space stay at 1024. My objective is to have 2048 Mo. Is it possible with two SDRAM of 512 Mo?
Thank you for your answer

The E250 can address a maximum of 2GB of RAM, but it must be done by filling all 16 memory slots with 128mb memory modules.
That is the largest DIMM size that will work.
Four banks of four DIMMs each.
The systemboard design will only understand that method of memory installation. The Sun part number 501-3136 was used in a number of different types of systems, so they should be readily available.
Here is the link in the Sun System Handbook:
http://sunsolve.sun.com/handbook_pub/Systems/E250/E250.html

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    org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
    org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    java.lang.Thread.run(Thread.java:595)
    Third trace
    java.lang.System.arraycopy(Native Method)
    com.sun.java.util.collections.ArrayList.toArray(ArrayList.java:287)
    oracle.jbo.server.ViewDefImpl.getEntityReferences(ViewDefImpl.java:547)
    oracle.jbo.server.ViewRowStorage.entityCacheAdd(ViewRowStorage.java:1730)
    oracle.jbo.server.ViewRowImpl.entityCacheAdd(ViewRowImpl.java:2151)
    oracle.jbo.server.ViewDefImpl.createInstanceFromResultSet(ViewDefImpl.java:1070)
    oracle.jbo.server.ViewObjectImpl.createRowFromResultSet(ViewObjectImpl.java:2943)
    oracle.jbo.server.ViewObjectImpl.createInstanceFromResultSet(ViewObjectImpl.java:2841)
    oracle.jbo.server.QueryCollection.populateRow(QueryCollection.java:2203)
    oracle.jbo.server.QueryCollection.fetch(QueryCollection.java:2088)
    oracle.jbo.server.QueryCollection.get(QueryCollection.java:1468)
    oracle.jbo.server.ViewRowSetImpl.getRow(ViewRowSetImpl.java:3650)
    oracle.jbo.server.ViewRowSetImpl.getRow(ViewRowSetImpl.java:2594)
    oracle.jbo.server.ViewObjectImpl.activateCurrentRow(ViewObjectImpl.java:12360)
    oracle.jbo.server.ViewRowSetIteratorImpl.activateIteratorState(ViewRowSetIteratorImpl.java:3768)
    oracle.jbo.server.ViewRowSetImpl.activateIteratorState(ViewRowSetImpl.java:4960)
    oracle.jbo.server.ViewRowSetImpl.doCreateAndInitRow(ViewRowSetImpl.java:1901)
    oracle.jbo.server.ViewRowSetImpl.createRow(ViewRowSetImpl.java:1891)
    oracle.jbo.server.ViewObjectImpl.createRow(ViewObjectImpl.java:6555)
    com.samesi.segestion.view.backing.app.Clientes.devoluciones_action(Clientes.java:1845)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:585)
    com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:146)
    com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:92)
    oracle.adf.view.faces.component.UIXCommand.broadcast(UIXCommand.java:211)
    oracle.adf.view.faces.component.UIXCollection.broadcast(UIXCollection.java:94)
    oracle.adf.view.faces.component.UIXTable.broadcast(UIXTable.java:205)
    javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
    javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381)
    com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:95)
    com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:245)
    com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:110)
    javax.faces.webapp.FacesServlet._service_79(FacesServlet.java:197)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._invokeDoFilter(AdfFacesFilterImpl.java:367)
    oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:336)
    oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:196)
    oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:87)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:332)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
    org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
    org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
    org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    java.lang.Thread.run(Thread.java:595)
    Fourth (and end) trace
    oracle.sql.NUMBER.toBigDecimal(NUMBER.java:715)
    oracle.sql.NUMBER.bigDecimalValue(NUMBER.java:2080)
    oracle.jbo.domain.Number.bigDecimalValue(Number.java:551)
    oracle.jbo.domain.Number.hashCode(Number.java:431)
    oracle.jbo.Key.hashCode(Key.java:384)
    oracle.jbo.common.WeakHashtableImpl.get(WeakHashtableImpl.java:195)
    oracle.jbo.common.WeakHashtable.get(WeakHashtable.java:98)
    oracle.jbo.server.EntityCache.add(EntityCache.java:327)
    oracle.jbo.server.ViewRowStorage.entityCacheAdd(ViewRowStorage.java:1762)
    oracle.jbo.server.ViewRowImpl.entityCacheAdd(ViewRowImpl.java:2151)
    oracle.jbo.server.ViewDefImpl.createInstanceFromResultSet(ViewDefImpl.java:1070)
    oracle.jbo.server.ViewObjectImpl.createRowFromResultSet(ViewObjectImpl.java:2943)
    oracle.jbo.server.ViewObjectImpl.createInstanceFromResultSet(ViewObjectImpl.java:2841)
    oracle.jbo.server.QueryCollection.populateRow(QueryCollection.java:2203)
    oracle.jbo.server.QueryCollection.fetch(QueryCollection.java:2088)
    oracle.jbo.server.QueryCollection.get(QueryCollection.java:1468)
    oracle.jbo.server.ViewRowSetImpl.getRow(ViewRowSetImpl.java:3650)
    oracle.jbo.server.ViewRowSetImpl.getRow(ViewRowSetImpl.java:2594)
    oracle.jbo.server.ViewObjectImpl.activateCurrentRow(ViewObjectImpl.java:12360)
    oracle.jbo.server.ViewRowSetIteratorImpl.activateIteratorState(ViewRowSetIteratorImpl.java:3768)
    oracle.jbo.server.ViewRowSetImpl.activateIteratorState(ViewRowSetImpl.java:4960)
    oracle.jbo.server.ViewRowSetImpl.doCreateAndInitRow(ViewRowSetImpl.java:1901)
    oracle.jbo.server.ViewRowSetImpl.createRow(ViewRowSetImpl.java:1891)
    oracle.jbo.server.ViewObjectImpl.createRow(ViewObjectImpl.java:6555)
    com.samesi.segestion.view.backing.app.Clientes.devoluciones_action(Clientes.java:1845)
    sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    java.lang.reflect.Method.invoke(Method.java:585)
    com.sun.faces.el.MethodBindingImpl.invoke(MethodBindingImpl.java:146)
    com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:92)
    oracle.adf.view.faces.component.UIXCommand.broadcast(UIXCommand.java:211)
    oracle.adf.view.faces.component.UIXCollection.broadcast(UIXCollection.java:94)
    oracle.adf.view.faces.component.UIXTable.broadcast(UIXTable.java:205)
    javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:267)
    javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:381)
    com.sun.faces.lifecycle.InvokeApplicationPhase.execute(InvokeApplicationPhase.java:95)
    com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:245)
    com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:110)
    javax.faces.webapp.FacesServlet._service_79(FacesServlet.java:197)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._invokeDoFilter(AdfFacesFilterImpl.java:367)
    oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:336)
    oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:196)
    oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:87)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:332)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
    org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
    org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
    org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
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    Feb 28, 2008 10:25:53 AM oracle.adf.view.faces.webcache.component.UICache encodeBegin
    INFO: fragment is Facturacion.jspx:_id4
    Feb 28, 2008 10:25:53 AM oracle.adf.view.faces.webcache.component.UICache getFragmentFromCache
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    com.sun.java.util.collections.ArrayList.indexOf(ArrayList.java:201)
    com.sun.java.util.collections.ArrayList.contains(ArrayList.java:183)
    oracle.jbo.server.ViewRowCache.addWithCheck(ViewRowCache.java:351)
    oracle.jbo.server.ViewRowCache.add(ViewRowCache.java:409)
    oracle.jbo.server.QueryCollection.addRowToColl(QueryCollection.java:2069)
    oracle.jbo.server.QueryCollection.fetch(QueryCollection.java:2111)
    oracle.jbo.server.QueryCollection.get(QueryCollection.java:1468)
    oracle.jbo.server.ViewRowSetImpl.getRow(ViewRowSetImpl.java:3650)
    oracle.jbo.server.ViewRowSetImpl.getRow(ViewRowSetImpl.java:2612)
    oracle.jbo.server.ViewObjectImpl.activateCurrentRow(ViewObjectImpl.java:12360)
    oracle.jbo.server.ViewRowSetIteratorImpl.activateIteratorState(ViewRowSetIteratorImpl.java:3768)
    oracle.jbo.server.ViewRowSetIteratorImpl.getRangeSize(ViewRowSetIteratorImpl.java:627)
    oracle.jbo.server.ViewRowSetImpl.getRangeSize(ViewRowSetImpl.java:2251)
    oracle.jbo.server.ViewObjectImpl.getRangeSize(ViewObjectImpl.java:6065)
    oracle.adf.model.binding.DCIteratorBinding.initSourceRSI(DCIteratorBinding.java:1549)
    oracle.adf.model.binding.DCIteratorBinding.callInitSourceRSI(DCIteratorBinding.java:1420)
    oracle.adf.model.binding.DCIteratorBinding.getRowSetIterator(DCIteratorBinding.java:1403)
    oracle.adf.model.binding.DCIteratorBinding.setRangeSize(DCIteratorBinding.java:2641)
    oracle.adf.model.binding.DCBindingContainer.internalRefreshControl(DCBindingContainer.java:2484)
    oracle.adf.model.binding.DCBindingContainer.refresh(DCBindingContainer.java:2257)
    oracle.adf.controller.v2.lifecycle.PageLifecycleImpl.prepareModel(PageLifecycleImpl.java:104)
    com.samesi.segestion.view.frameworkExt.SegestionPageLifecycle.prepareModel(SegestionPageLifecycle.java:354)
    oracle.adf.controller.v2.lifecycle.Lifecycle$8.execute(Lifecycle.java:210)
    oracle.adf.controller.v2.lifecycle.Lifecycle.executePhase(Lifecycle.java:116)
    oracle.adf.controller.faces.lifecycle.ADFPhaseListener.mav$executePhase(ADFPhaseListener.java)
    oracle.adf.controller.faces.lifecycle.ADFPhaseListener$4.after(ADFPhaseListener.java:331)
    oracle.adf.controller.faces.lifecycle.ADFPhaseListener.afterPhase(ADFPhaseListener.java:97)
    com.sun.faces.lifecycle.LifecycleImpl.phase(LifecycleImpl.java:254)
    com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:110)
    javax.faces.webapp.FacesServlet.service(FacesServlet.java:197)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._invokeDoFilter(AdfFacesFilterImpl.java:367)
    oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl._doFilterImpl(AdfFacesFilterImpl.java:336)
    oracle.adfinternal.view.faces.webapp.AdfFacesFilterImpl.doFilter(AdfFacesFilterImpl.java:196)
    oracle.adf.view.faces.webapp.AdfFacesFilter.doFilter(AdfFacesFilter.java:87)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    oracle.adf.model.servlet.ADFBindingFilter.doFilter(ADFBindingFilter.java:332)
    org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:202)
    org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
    org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
    org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
    org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:524)
    org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
    org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
    org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
    org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
    org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:869)
    org.apache.coyote.http11.Http11BaseProtocol$Http11ConnectionHandler.processConnection(Http11BaseProtocol.java:664)
    org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
    org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
    org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
    java.lang.Thread.run(Thread.java:595)Thanks,

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            PRPS,                          " WBS elements
            TJ02T,                         " System Status Values
            TCJ1,                          " Project Types
            JEST,                          " Active System Status
            COSP1,                         " cost totals - external postings
            COSS1,                         " cost totals - internal postings
            COVP11,                        " Line Items by Prd & Doc Header
            COVP12,                        " Line Items by Prd & Doc Header
            BHDGD,                         " Page heading table.
            AUFK,                          " Order Master Data for WBS (LDB)
            ANEP,                          " Asset line item
            COBRB,                         "Distribution Rules Settlement Ru
            SETHIER,                       "Hierarchy Structure
            TKA02,                         "Controlling Area Assignment
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            PSDYNP.                        "Dummy struct for GET AUFK late
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              C_I                   TYPE C VALUE 'I',
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              C_Y                   TYPE C VALUE 'Y',
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          WBS_CNT          TYPE I,                 " cnt for wbs in status
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            PROJECT        LIKE PROJ-PSPID,    " project
            NAME           LIKE PROJ-POST1,    " project description
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            PRCTR          LIKE PROJ-PRCTR,    " profit center
            SETID          LIKE SETHIER-SETID, " level 2 pc hier
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    SELECTION-SCREEN BEGIN OF LINE.
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    SELECTION-SCREEN BEGIN OF LINE.
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      DESCRIBE TABLE ITAB LINES W_RECORDS.
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    FORM CHECK_PROJ_CRITERIA.
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      SELECT SINGLE * FROM ANLC
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        WHERE BUKRS = F_BUKRS AND
                ANLN1 = L_COBRB-ANLN1 AND
                ANLN2 = L_COBRB-ANLN2 AND
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    FORM  BUILD_TABLE.
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        ITAB-PLANT    = I_PROJ-WERKS.
        ITAB-PROJECT  = I_PROJ-PSPID.
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                ILLEGAL_TABLE_REPLACEMENT = 3
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      DATA:  L_TITLEL   LIKE SY-TABIX.
      DATA:  L_START    LIKE SY-TABIX.
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