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Thread: XLR8/Daystar CPU Clarification?

  1. #1
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    Default XLR8/Daystar CPU Clarification?

    In looking at the line of XLR8 products wondering which is the best for the B&W? Would it be the G4/550 or the 7410LE at 500-->600? Does anyone know if the 550 is a 550 rated chip or is it the same as the 500/600 chip. Which chip clocks better. Thanks!

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    I have read of people beening real happy with the 550 processor and some are overclocking to 600 just fine.

  3. #3
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    I haven't had time to upgrade the page yet but the 550 G4 that we are carrying is now going to be marketed as 500/600. And it is better because the backside cache is larger and faster. The cache is the whole reason the G4 is what it is. And comparisons of CPUs MUST include L2 and L3 cache performance or the comparison is useless. CPU speed is almost of less priority than cache size and speed.

    Larry's going to be unhappy when we finally get the marketing rolling.

    Rick
    molṑn labe'
    "I am a mortal enemy to arbitrary government and unlimited power. I am naturally very jealous for the rights and liberties of my country, and the least encroachment of those invaluable privileges is apt to make my blood boil."
--Ben Franklin

  4. #4
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    Ricks,

    How does that compare to the older XLR8 g4/500 7400 series CPU? Thx.

  5. #5
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    >>
    How does that compare to the older XLR8 g4/500 7400 series CPU? Thx.

    the g4/500 was limited to 250 MHz for the L2 cache and was impossible to reliably OC above 500 MHz for cpu. the 7410 has been more flexible, sometimes over time running 24//7 to eek out faster speeds, using cooling, higher voltage to help boost performance. I think there are other more significant differences in depth and number of pipes.

    I wonder if MOTO still makes a 7410 or are these all just what was produced in the past?

    If only the faster 7455Bs were possible, but trying to create faster and dual G4s was part of what consumed and exhausted XLR8 in the past, and inability of MOTO to come out with affordable chips for 3rd party upgrade market.

    I paid about $349 (after $50 credit) for G4/500 at one time, 7400 G4/500, and it is still running solid, even able to get 533-550 with some work.

  6. #6
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    One of the biggest difference is the multiplier, the 7400 would only do 9X. The 7410 will do much higher. The backside is 1 MegaByte at 250 to 300 MHz.

    The 7410 must still be in production since I had a discussion came about in regards to the Lombard G3 upgrade. The cost of a G4 upgrade was going to be higher because the newer 7410 was necessary due to power use/heat issues (the same thing really)

    The 7410 is a much cleaner and more mature cpu. The power use is way down because the tolerances are much higher. This allows higher speeds as well.

    This weekend I'll redo the G4 XLR8 page to reflect the 600 capability. Same product as the 550 is now though.

    Rick
    molṑn labe'
    "I am a mortal enemy to arbitrary government and unlimited power. I am naturally very jealous for the rights and liberties of my country, and the least encroachment of those invaluable privileges is apt to make my blood boil."
--Ben Franklin

  7. #7
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    Actually I was thinking more in the terms of performance/real world gain of a G4/500 7400 vs. G4/600 7410LE

  8. #8
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    You got me... I've never been over 500 on any of my ZIF based computers. B&W, 8600 and 9500, 9600, 7300 and 8500. In every one we have an XLR8 500 G4. Those machines belong to me, MacGurus, my brother and my Dad. I overclocked the 7400 in the B&W for a while to 550 but it wasn't perfectly stable, so it is back to 500.

    I have never tested a 600.

    Rick
    molṑn labe'
    "I am a mortal enemy to arbitrary government and unlimited power. I am naturally very jealous for the rights and liberties of my country, and the least encroachment of those invaluable privileges is apt to make my blood boil."
--Ben Franklin

  9. #9
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    Quote Originally Posted by ricks
    One of the biggest difference is the multiplier, the 7400 would only do 9X. The 7410 will do much higher. The backside is 1 MegaByte at 250 to 300 MHz.


    The 7410 is a much cleaner and more mature cpu. The power use is way down because the tolerances are much higher. This allows higher speeds as well.

    This weekend I'll redo the G4 XLR8 page to reflect the 600 capability. Same product as the 550 is now though.

    Rick
    I see you have upgraded the page to reflect the 600 MHz. I've confused you say above that the 7410 will do much better then the 9x the 7400 chip does. But your web page says the 7410 is 9x limited(old info not corrected?) Daystar's web page doesn't seem to say. I'm hoping the above means the 7410 chip can be set to 10x multiplier . As would make a big difference what the chip could be set to when used with a Carrier card. Thanks Will S

  10. #10
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    Default Great question Will!

    I too am confused what the 'best' ZIF chip is for Carrier cards... Right now I am using a Sonnet G4/ 450 with 1M backside cache running at 3:2 (slight overclock of cache).
    The Sonnet card is of course not on a carrier card, but is their 'plug' and 'play' Crescendo 450.

    I now have a new XLR8 Carrier card, and will either buy the G3-750GX or a 7410LE. I wish one of the formentioned companies would give more info on the older PCI macs.

    Best,
    Rob

    Marathon RackMac G4-450
    Last edited by rguising; 05-30-2004 at 05:06 PM. Reason: change of txt

  11. #11
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    Quote Originally Posted by rguising
    I too am confused what the 'best' ZIF chip is for Carrier cards... Right now I am using a Sonnet G4/ 450 with 1M backside cache running at 3:2 (slight overclock of cache).
    The Sonnet card is of course not on a carrier card, but is their 'plug' and 'play' Crescendo 450.

    I now have a new XLR8 Carrier card, and will either buy the G3-750GX or a 7410LE. I wish one of the formentioned companies would give more info on the older PCI macs.

    Best,
    Rob

    Marathon RackMac G4-450
    I'm looking at the same choices! Also looking at the G3-750 FX as it's much cheaper in price then the FX. I've read of support problems with Powerlogix . I'm guessing that could be one of the reasons that MacGurus no longer sells Powerlogix. I've always really like XLR8's products so would likely buy one of their's if it runs at 10x .Will

  12. #12
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    Sorry Will,

    I misspoke earlier. The 7410 is the current G4 in the XLR8 ZIF and is capable of 9X. The 7455 is the one that will do 16X. There is no 10X G4 currently from XLR8. The day may come where we see 7455 CPUs in Carrier ZIFs, but it isn't yet.

    Rick
    molṑn labe'
    "I am a mortal enemy to arbitrary government and unlimited power. I am naturally very jealous for the rights and liberties of my country, and the least encroachment of those invaluable privileges is apt to make my blood boil."
--Ben Franklin

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