Possible incorrect CPU codename. MBP C2D 2.2

Discussion in 'MacBook Pro' started by paul.b.davis, Jun 13, 2010.

  1. paul.b.davis macrumors 6502


    Oct 24, 2007
    Over the hills and far away...
    So recently I have noticed that my computer seems to be a bit lacking in performance. Today I noticed while using Logic Express 8 that only one of the cores was being used. I was running some plugins, but not more than I have before when things were working fine, and it kept stopping with a system
    overload message.

    Determined to figure it out, I installed the processor preference pane from the developer tools and when I opened it up, it said that I have an "Intel Core 2 (Merom) Processor. It also says 32 bit in the title bar. I have thought that my model has a 64 bit Santa Rosa processor.

    Here are the details on my machine:

    MacBook Pro from Sept 07 (bought new low end model)
    Model number A1226
    2.2 ghz prosessor
    GeForce 8600M GT gpu 128 mb

    Any help with this would be great. Thanks in advance. Just let me know if you need more information.
  2. J the Ninja macrumors 68000

    Jul 14, 2008
    Santa Rosa refers to the platform, it used the "Merom" C2Ds. If you want to know exactly, run this command, it will output the "brand string" from your CPU:

    sysctl -a | grep brand_string
    32bit could refer to a lot of things. In any case, all the Core 2 Duos are 64bit, so that isn't it. But Logic Express 8 is a 32bit app anyway. For the cores, just check Activity Monitor, or look in System Profiler under "total number of cores" to check how many logical processors OS X can see.
  3. paul.b.davis thread starter macrumors 6502


    Oct 24, 2007
    Over the hills and far away...
    Since Logic Express 8 is 32 bit does that mean it can only use one core? If that is the case I can eliminate that as the cause.

    Why would the prefernce pane (in system preferences) title bar display as a 32 bit processor if the Meron is 64 bit?

    The other possible cause of the error message and the crash is that my hard drive disk is not fast enough to load the audio. Is there any way to test my hard drive speed? It is a 500 gb hard drive I put in. I recall that the speed is 5400 but this was the speed of my old one too and it never had this problem.

    I am running 10.6
  4. spinnerlys Guest


    Sep 7, 2008
    forlod bygningen
    32-bit has nothing to do with using only one core, the application should be able to access two cores.

    System Preferences has 32-bit in its title bar either because you run a preference pane, that requires to be run in 32-bit mode or you selected to run System Preferences in 32-bit mode via right clicking on System Preferences in Finder and selecting GET INFO and checking the OPEN IN 32-BIT MODE checkbox.

    To benchmark your HDD write and read speed use Aja System Test or XBench.

    AJA System Test
  5. paul.b.davis thread starter macrumors 6502


    Oct 24, 2007
    Over the hills and far away...
    Ok, here is some more information

    Screenshots of SysPref info and the Processor pane.

    As you can see, it is set to open in 64 bit mode, but the title bar says it is 32 bit.

    Here are my xbench scores, if that helps at all.

    Results	126.90	
    	System Info		
    		Xbench Version		1.3
    		System Version		10.6.3 (10D578)
    		Physical RAM		4096 MB
    		Model		MacBookPro3,1
    		Drive Type		WDC WD6400BEVT-00A0RT0
    	CPU Test	153.01	
    		GCD Loop	259.41	13.67 Mops/sec
    		Floating Point Basic	123.27	2.93 Gflop/sec
    		vecLib FFT	99.03	3.27 Gflop/sec
    		Floating Point Library	245.23	42.70 Mops/sec
    	Thread Test	156.98	
    		Computation	160.26	3.25 Mops/sec, 4 threads
    		Lock Contention	153.83	6.62 Mlocks/sec, 4 threads
    	Memory Test	162.17	
    		System	173.29	
    			Allocate	337.79	1.24 Malloc/sec
    			Fill	135.80	6602.72 MB/sec
    			Copy	143.12	2955.99 MB/sec
    		Stream	152.39	
    			Copy	142.39	2940.92 MB/sec
    			Scale	142.59	2945.83 MB/sec
    			Add	163.35	3479.79 MB/sec
    			Triad	164.19	3512.39 MB/sec
    	Quartz Graphics Test	165.05	
    		Line	144.82	9.64 Klines/sec [50% alpha]
    		Rectangle	182.67	54.54 Krects/sec [50% alpha]
    		Circle	158.67	12.93 Kcircles/sec [50% alpha]
    		Bezier	168.46	4.25 Kbeziers/sec [50% alpha]
    		Text	176.21	11.02 Kchars/sec
    	OpenGL Graphics Test	136.71	
    		Spinning Squares	136.71	173.43 frames/sec
    	User Interface Test	235.52	
    		Elements	235.52	1.08 Krefresh/sec
    	Disk Test	54.15	
    		Sequential	97.92	
    			Uncached Write	129.14	79.29 MB/sec [4K blocks]
    			Uncached Write	118.84	67.24 MB/sec [256K blocks]
    			Uncached Read	55.95	16.37 MB/sec [4K blocks]
    			Uncached Read	146.67	73.72 MB/sec [256K blocks]
    		Random	37.42	
    			Uncached Write	13.43	1.42 MB/sec [4K blocks]
    			Uncached Write	112.12	35.89 MB/sec [256K blocks]
    			Uncached Read	66.20	0.47 MB/sec [4K blocks]
    			Uncached Read	118.85	22.05 MB/sec [256K blocks]

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