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Thread: FSP Raider 750W Review

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    Default FSP Raider 750W Review

    It's time to go on a power supply raid. Today, FSP is going to be helping out there by letting me take a peek at their Raider 750 watt unit. This is an 80 Plus Bronze unit targeted at the budget gaming crowd. Come inside, and we'll see if this unit turns out to be the bronze idol itself, or merely the clay pot you throw at the bad guys while escaping the booby trapped cave carrying said idol. Insert Indiana Jones theme music here.
    http://www.jonnyguru.com/modules.php...Story&reid=310

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    Mediocrity. Unfinished sleeving and group regulation. If you really need 750W unit, you probably can afford better than that.

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    I love the efficiency numbers; but FPS... seriously... fix this guy.
    There's no reason we should have such good 5v regulation & such poor 12v regulation.

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    The insides of PSUs are quite small spaces, so I'm wondering how an IC chip could go "MIA inside", surely there aren't that many places for it to hide.

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    Interesting. Heh, for a second I wondered if I could take some credit for that efficiency curve, but I checked the dates and it doesn't add up. Anyway, I talked to some FSP engineers and PMs about how mid-range PSUs should be more efficient at the low end of their capacity to account for users who under-load the units. They were skeptical but in the end agreed the idea had some merit.

    If these Raider units had 2% or 2.5% +12V v-reg instead of over 4%... I could easily recommend these 750W units for 200W-400W systems without worrying about idle efficiency being crap, and save the time of arguing about necessary capacity. But that regulation--ouch!

    I hope we see similar efficiency curves on future mid-range and budget high-wattage PSUs, but with better electrical performance.
    It's my PSU in a box!
    Ooo-ooh,
    My PSU in a box, baby!

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    I'd easily accept 4% vreg on the 5v for 1-1.5% on the 12v; which you can do with group regulation if designed well.
    (You can do better 5v as well, as long as it's not a crossload, but it's obvious these guys are not designed well.)

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    Does FSP want to promote the 750w model on this platform seriously?

    They could send out 400w units for good feedback.

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    Yeah.A 400-500W PSU based on this platform should be good and cheap. 750W? No way...
    Xeon X3440 @3,1GHz + GTX660 + 2x4GB @1650MHz CL9 + Corsair RM650

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    Guess they're going back to assuming that most people will buy oversized PSUs, just so they can feel "safe" about their choice. Pushing this PSU to no more than 400W is something that I suspect will be the case at least 90% of the time... And within this range, it's performance is acceptable.

    Clearly, the platform isn't made for power outputs greater than said 400W, the sharp drop in efficiency is a telltale sign. Loose regulation hints at it too. Perhaps ACRF is limited similarly to Flyback HB, it can be made good up to a point, and then it just gets messy and out of control.
    Careful what you wish for... You just might get it.

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    FSP ever push group regulation design to KW+ (double forward)
    the reason they didn't push clamping single forward that high just because no such big MOS (800V) available

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