Old Mac Pro won't power up

We have an old Mac Pro-no clue what year and it will not power up.  The power light comes on when you press it, but then nothing.  We did change out the battery once already and the computer worked for over a week, but now its back to not working.  I can't afford to continue replacing the battery at $20 a pop, is there anything else we can do?

US$25 will buy you 100 of those batteries:
Maxell CR2032 3V Micro Lithium Button Coin Cell Battery 1 Box of 100 Batteries

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  • Mac Pro won't power up

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    Drive Type SAMSUNG HD321KJ
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    GCD Loop 235.46 12.41 Mops/sec
    Floating Point Basic 114.72 2.73 Gflop/sec
    vecLib FFT 91.08 3.00 Gflop/sec
    Floating Point Library 90.59 15.77 Mops/sec
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    Lock Contention 192.13 8.27 Mlocks/sec, 4 threads
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    Fill 128.10 6228.60 MB/sec
    Copy 122.53 2530.89 MB/sec
    Stream 139.17
    Copy 137.43 2838.60 MB/sec
    Scale 136.06 2810.96 MB/sec
    Add 142.26 3030.48 MB/sec
    Triad 141.13 3019.07 MB/sec
    Quartz Graphics Test 180.82
    Line 140.51 9.36 Klines/sec [50% alpha]
    Rectangle 190.07 56.75 Krects/sec [50% alpha]
    Circle 153.09 12.48 Kcircles/sec [50% alpha]
    Bezier 154.21 3.89 Kbeziers/sec [50% alpha]
    Text 443.06 27.72 Kchars/sec
    OpenGL Graphics Test 148.63
    Spinning Squares 148.63 188.55 frames/sec
    User Interface Test 284.51
    Elements 284.51 1.31 Krefresh/sec
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    GCD Loop 235.64 12.42 Mops/sec
    Floating Point Basic 114.67 2.72 Gflop/sec
    vecLib FFT 91.81 3.03 Gflop/sec
    Floating Point Library 92.08 16.03 Mops/sec
    Thread Test 243.60
    Computation 331.37 6.71 Mops/sec, 4 threads
    Lock Contention 192.58 8.28 Mlocks/sec, 4 threads
    Memory Test 134.37
    System 129.49
    Allocate 140.73 516.81 Kalloc/sec
    Fill 127.57 6202.89 MB/sec
    Copy 121.60 2511.53 MB/sec
    Stream 139.64
    Copy 137.73 2844.68 MB/sec
    Scale 137.36 2837.88 MB/sec
    Add 142.55 3036.65 MB/sec
    Triad 141.07 3017.89 MB/sec
    Quartz Graphics Test 153.32
    Line 120.86 8.05 Klines/sec [50% alpha]
    Rectangle 153.95 45.96 Krects/sec [50% alpha]
    Circle 121.37 9.89 Kcircles/sec [50% alpha]
    Bezier 133.61 3.37 Kbeziers/sec [50% alpha]
    Text 471.96 29.52 Kchars/sec
    OpenGL Graphics Test 150.39
    Spinning Squares 150.39 190.78 frames/sec
    User Interface Test 217.74
    Elements 217.74 999.33 refresh/sec

    Just put my 2600 in my 2006 Mac Pro 2.66 , replacing X1900 which shows "the lines" every few days. The cards drive a 30 inch ACD and an old type 23inch. I tested the 1900 in Cinebench10 and XBench before removing it:
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    Processor : Intel
    MHz : 2.66
    Number of CPUs : 4
    Operating System : OS X 32 BIT 10.5.1
    Graphics Card : ATI Radeon HD 2600 PRO OpenGL Engine
    Rendering (Single CPU): 2850 CB-CPU
    Rendering (Multiple CPU): 9011 CB-CPU
    Multiprocessor Speedup: 3.16
    Shading (OpenGL Standard) : 5331 CB-GFX
    CINEBENCH R10 for 1900
    Processor : Intel
    MHz : 2.66
    Number of CPUs : 4
    Operating System : OS X 32 BIT 10.5.1
    Graphics Card : ATI Radeon X1900 OpenGL Engine
    Rendering (Single CPU): 2851 CB-CPU
    Rendering (Multiple CPU): 8905 CB-CPU
    Multiprocessor Speedup: 3.12
    Shading (OpenGL Standard) : 5208 CB-GFX
    XBench 2600:
    Quartz Graphics Test 190.94
    Line 173.46 11.55 Klines/sec [50% alpha]
    Rectangle 225.53 67.33 Krects/sec [50% alpha]
    Circle 181.57 14.80 Kcircles/sec [50% alpha]
    Bezier 194.17 4.90 Kbeziers/sec [50% alpha]
    Text 187.63 11.74 Kchars/sec
    OpenGL Graphics Test 195.41
    Spinning Squares 195.41 247.89 frames/sec
    User Interface Test 300.93
    Elements 300.93 1.38 Krefresh/sec
    XBench X1900:
    Quartz Graphics Test 206.60
    Line 184.90 12.31 Klines/sec [50% alpha]
    Rectangle 246.37 73.55 Krects/sec [50% alpha]
    Circle 204.28 16.65 Kcircles/sec [50% alpha]
    Bezier 197.50 4.98 Kbeziers/sec [50% alpha]
    Text 209.40 13.10 Kchars/sec
    OpenGL Graphics Test 255.01
    Spinning Squares 255.01 323.49 frames/sec
    User Interface Test 272.05
    Elements 272.05 1.25 Krefresh/sec
    At first I was a bit surprised about the Cinebench results. But Barefeats actually shows the same thing for the "Imaginator" test of core image effects.
    Also surprised there is no power usage difference registered on my wattmeter. Thought it used 60 watts less.
    Mike

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