mikiotty

Q: Dual 800MHz in 733MHz QuickSilver - heatsink

Hello everyone!

I just had a PowerMac G4 QuickSilver 2001 (the original model) with a 733MHz single CPU from a good friend.

I want to upgrade the CPU and I already know that the CPU from the Dual 800MHz Quicksilver will fit and work in my computer, but my question is about the heatsink.

The Dual 800MHz CPU I saw on eBay doesn't come with an heatsink, so: can I use my heatsink from the single 733MHz with the Dual 800MHz or will it overheat? I could put a second 60mm fan attached to the heatsink to improve the airflow, will it be enough cooling?

 

Thanks!

PowerMac, Mac OS X (10.4.11), G4 QuickSilver 2001 - 733MHz - 1GB

Posted on Mar 11, 2014 10:50 AM

Close

Q: Dual 800MHz in 733MHz QuickSilver - heatsink

  • All replies
  • Helpful answers

Previous Page 2
  • by mikiotty,

    mikiotty mikiotty Jun 29, 2014 11:58 PM in response to BDAqua
    Level 1 (0 points)
    Jun 29, 2014 11:58 PM in response to BDAqua

    Good morning everyone!

    After 3 months, I finally purchased that Dual 800MHz CPU upgrade. It came 3 days ago, I installed it in my QS and... my God. It's a completely different machine now.

    That dual processor made a huge difference: the average CPU usage under Tiger went from about 70-80% to 10-20% per processor. Graphics performance improved A LOT as well. Now the dock magnification is completely smooth and even Leopard runs pretty quick!

    But guys... that thing heats up. Really. The heatsink really does its job well. I'm thinking of screwing a second fan on the heatsink on the opposite side of the stock one, to improve airflow. I also have a flashed Nvidia GeForce FX5500, which has an awful sounding fan and heats up a lot, so I might replace it with something quieter and cooler (I've got a Sapphire Radeon X800 Pro but I didn't manage to flash it for the PowerMac, I think the X800XT ROM is not compatible with this exact card) to cool down the overall system.

    Thank you for all the support, you've been great!

  • by BDAqua,

    BDAqua BDAqua Jun 30, 2014 9:44 AM in response to mikiotty
    Level 10 (123,775 points)
    Jun 30, 2014 9:44 AM in response to mikiotty

    Great to hear, thanks for the report!

     

    The 733 was a dog,slower than the 533s, the DP800 was a hot monster, so the more fans the better, only the MDDs were worse for heat.

  • by mikiotty,

    mikiotty mikiotty Jul 1, 2014 12:51 PM in response to BDAqua
    Level 1 (0 points)
    Jul 1, 2014 12:51 PM in response to BDAqua

    I wanted to run Xbench and compare it to my 1.5GHz PowerBook G4... and they're really close! The PB is still a little bit faster, but the QS has a 7200rpm hard drive that helps a lot...

    I tried my old 9600XT from my G5, taping pins 3 and 11, and it doesn't work... nothing at all. I'll try again with the X800 as soon as I can

  • by BDAqua,

    BDAqua BDAqua Jul 1, 2014 2:39 PM in response to mikiotty
    Level 10 (123,775 points)
    Jul 1, 2014 2:39 PM in response to mikiotty

    G5 Quad...

     

    Results    78.80   

        System Info       

            Xbench Version        1.3

            System Version        10.5.8 (9L31a)

            Physical RAM        10240 MB

            Model        PowerMac11,2

            Processor        PowerPC G5x4 @ 2.50 GHz

                L1 Cache        64K (instruction), 32K (data)

                L2 Cache        1024K @ 2.50 GHz

                Bus Frequency        1 GHz

            Drive Type        CVBRaid0

        CPU Test    75.40   

            GCD Loop    57.43    3.03 Mops/sec

            Floating Point Basic    83.38    1.98 Gflop/sec

            AltiVec Basic    164.97    6.57 Gflop/sec

            vecLib FFT    64.83    2.14 Gflop/sec

            Floating Point Library    64.85    11.29 Mops/sec

        Thread Test    76.84   

            Computation    88.42    1.79 Mops/sec, 4 threads

            Lock Contention    67.94    2.92 Mlocks/sec, 4 threads

        Memory Test    84.80   

            System    83.53   

                Allocate    107.78    395.79 Kalloc/sec

                Fill    121.79    5921.51 MB/sec

                Copy    54.28    1121.05 MB/sec

            Stream    86.10   

                Copy    86.06    1777.58 MB/sec [G5]

                Scale    85.27    1761.64 MB/sec [G5]

                Add    87.30    1859.59 MB/sec [G5]

                Triad    85.78    1835.13 MB/sec [G5]

        Quartz Graphics Test    82.90   

            Line    69.30    4.61 Klines/sec [50% alpha]

            Rectangle    74.74    22.31 Krects/sec [50% alpha]

            Circle    70.97    5.78 Kcircles/sec [50% alpha]

            Bezier    77.23    1.95 Kbeziers/sec [50% alpha]

            Text    183.07    11.45 Kchars/sec

        OpenGL Graphics Test    51.62   

            Spinning Squares    51.62    65.49 frames/sec

        User Interface Test    40.56   

            Elements    40.56    186.17 refresh/sec

        Disk Test    123.86   

            Sequential    125.78   

                Uncached Write    174.99    107.44 MB/sec [4K blocks]

                Uncached Write    228.58    129.33 MB/sec [256K blocks]

                Uncached Read    55.32    16.19 MB/sec [4K blocks]

                Uncached Read    275.16    138.29 MB/sec [256K blocks]

            Random    122.00   

                Uncached Write    51.93    5.50 MB/sec [4K blocks]

                Uncached Write    486.55    155.76 MB/sec [256K blocks]

                Uncached Read    157.39    1.12 MB/sec [4K blocks]

                Uncached Read    195.32    36.24 MB/sec [256K blocks]

Previous Page 2