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    Silverstone Zeus ST65ZF
    Author: jonnyguru
    Date Posted:26/07/2005 04:28.22
    SLRating: SLRating: 10/10
    Bottom Line: The Silverstone Zeus ST65ZF is HARDCORE. It's more power supply than most people need, but if it's in the budget and you want no holds barred, this is a power supply for you.

    Find the lowest price for this product
    Pages: 1 2 3 4 5 6
    Discuss This Article


    Under Load

    With the Fluke telling me what each load is on each rail, I could proceed with testing.  So now let me break down for you how I'm going to test this unit with my trusty load tester...

    3.3V
    5V
    12V1
    12V2
    12V3
    12V4
    1st Test
    10A
    14A
    6A
    6A
    7A
    5A
    2nd Test
    10A
    14A
    7A
    7A
    8A
    6A
    3rd Test
    10A
    14A
    8A
    8A
    8A
    6A
    4th Test
    12A
    18A
    13A
    13A
    10A
    8A

    The first three tests are pretty "normal."  The fourth is pretty much balls to the wall.

    Now that you know how I'm going to hammer the power supply.. let's go ahead and juice it up...

    3.3V
    5V
    12V1
    12V2
    12V3
    12V4
    Eff.
    PF
    Total Watts
    1st Test
    3.31V
    4.99V
    12.00V
    12.02V
    12.00V
    12.02V
    76%
    .99
    407W
    2nd Test
    3.30V
    5.00V
    11.96V
    11.92V
    11.96V
    11.92V
    75%
    .99
    453.5W
    3rd Test
    3.33V
    5.00V
    11.91V
    11.94V
    11.91V
    11.94V
    75%
    .99
    465W
    4th Test
    3.33V
    5.00V
    11.90V
    11.94V
    11.90V
    11.94V
    71%
    .99
    663.8W

    The capabilities of this power supply is downright SCARY!  Even when loaded over it's maximum rated 650W, the power supply stayed fairly cool... even after half an hour!

    The peak rating on this beast is 710W (maximum being a sustained rating, while peak is.. well... peak.) I didn't go this high because as it is the lights in the dining room were dimming with the nearly 1000W draw at the wall.  A bit unnerving.

    Much to my surprise, the efficiency stayed good too!  Under "normal" loads, efficiency was consistently over 75%.  Even when pushed to the extreme, the power supply maintained an efficiency > 70%!


    The insides of the ST65ZF is beautiful. As if someone with OCD designed the layout of the PCB. I've never seen a power supply laid out like this.


    I've seen neater wiring, but the problem here is that the wires come in to the housing on the opposite side of where they are soldered down to the PCB.


    The heatsinks are absolutely MAMMOTH. And they need to be with the amount of juice this thing puts out.



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    Article Navigation

    1. Introduction
    2. Testing
    3. Under Load
    4. Crossloading
    5. Connectors
    6. Conclusions

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