test sees 1 of my Dual Xeon CPU 2.0's

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • Tcalvin
    Junior Member
    • Mar 2009
    • 6

    #1

    test sees 1 of my Dual Xeon CPU 2.0's

    When I run the performance test it only shows one cpu, though I have 2. I have played with preferences but it still only sees and tests one processor. Any suggestions?
  • David (PassMark)
    Administrator
    • Jan 2003
    • 11099

    #2
    Are you running an O/S that supports more than 1 CPU?
    Does your BIOS support more than 1 CPU and is it set correctly.
    Are you sure you have 2 CPUs and not just a dual core CPU? Or a CPU with hyperthreading. As multiple cores and hyperthreading can appear like multiple CPUs in some tools.

    Comment

    • Tcalvin
      Junior Member
      • Mar 2009
      • 6

      #3
      In Task Manager under processors there are 2 processor windows. The OS see the two processors. The software sees one.

      Comment

      • David (PassMark)
        Administrator
        • Jan 2003
        • 11099

        #4
        Dual core CPUs and CPU's with hyperthreading can (and do) appear as 2 CPUs in task manager and the O/S.

        Comment

        • Tcalvin
          Junior Member
          • Mar 2009
          • 6

          #5
          Two processors...

          Thanks for the help. When the machine boots it initializes 2 processors. There are 2 processors with 2 heatsinks in the machine. Device manager sees 2 Intel XEON CPU 2.00GHz Processors.

          Comment

          • David (PassMark)
            Administrator
            • Jan 2003
            • 11099

            #6
            What model Xeon are they? What version of PerformanceTest are you using? Maybe they are both dual core and one is not working due to BIOS settings or O/S?

            What is being reported in PerformanceTest for, Number of CPUs, Cores per CPU and Hyperthreading capable?

            Comment

            • Tcalvin
              Junior Member
              • Mar 2009
              • 6

              #7
              Update

              They are XEON 2.0GHz. Performance Test is 7.0. ! processor and 1 Core per CPU. Hyperthreading is enabled.

              Comment

              • David (PassMark)
                Administrator
                • Jan 2003
                • 11099

                #8
                If hyperthreading is enabled, and you have 2 physical CPUs, then you should have 4 processor windows in task manager not 2. I think one of your CPUs isn't enabled.

                Comment

                • Tcalvin
                  Junior Member
                  • Mar 2009
                  • 6

                  #9
                  Hmmm...

                  I think you are right. I turned off Hyperthreading and it shows only one processor. When the computer boots it initializes processor 0 and processor 1 but I seem to get only one processor. I will have to figure out what is going on.
                  This was a donated computer that I am trying to get up and running...just proves there is no such thing as FREE!

                  Thanks
                  Tom

                  Comment

                  • David (PassMark)
                    Administrator
                    • Jan 2003
                    • 11099

                    #10
                    Are you running an O/S that supports more than 1 CPU?

                    Comment

                    • Tcalvin
                      Junior Member
                      • Mar 2009
                      • 6

                      #11
                      Thanks...

                      I have moved to another pc that has 2 2.4Ghz processors. The software shows 2 CPU's and Task Manager sees 4 (Hyperthreading enabled). So I think there is something wrong with the other machine. I do have an issue now that PT 7.0 shows N/A for L1 Data Cache, L2 Cache Size and L3 Cache. THe processors are Intel Xeon 2.4 GHz processors and they should have at least 512K Cache I believe.

                      Thanks again.

                      Tom

                      Comment

                      Working...