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About 30Valve

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  1. 30Valve

    PSU with Front Intake

    Would that cause an issue with heat soak? If the PSU is exhausting hot air, the rear intake would pull some of that air back into the case, reducing the efficiency of the CPU cooler and getting drawn back into the PSU, causing that air to cycle and continue to get hotter.
  2. I want to build into an old Alienware Predator 2 case that has the old, now unorthodox, power supply placement at the top of the case. Problem is that the top of the case is closed and directly beneath the PSU is the CPU cooler, so a typical power supply with a side intake would choke or overheat. The OE PSU is one of those that intakes air from the front. Are there modern power supplies with this layout? Is there some keyword I'm missing when searching for one?
  3. 30Valve

    Slow Fan Bottlenecking Fast Fan?

    Thanks for those resources, I appreciate it. Regardless of the CPU fan I get, let's get back to the main topic: Is there an acceptable minimum ratio of airflow between a CPU fan and an exhaust fan? With my current setup (Alienware case fan and Tuniq CPU fan), the exhaust fan can move about 58.5% of the airflow of the CPU fan. When you builders assemble from scratch, do you consider this difference if using multiple models of fans? If so, where do you find a good balance?
  4. 30Valve

    Slow Fan Bottlenecking Fast Fan?

    Thank you for the insight, that is very helpful. I was drawn to the industrial fans for two primary reasons. One being the excellent static pressure performance and two (I hate to be that hater) the black aesthetics. I really don't care for Noctua's traditional color scheme. Noise isn't that big of a factor for me, and the iPPC 2000 outperforms the P12 Redux. Is the only difference between the iPPC 3000 and 2000 a higher RPM ceiling? Do the fans perform identically up to 2000 RPM? Does the 3000 have a higher minimum RPM floor?
  5. 30Valve

    Slow Fan Bottlenecking Fast Fan?

    To preface my answer: everything I'm working with I got for free. I'm using a Tuniq cooler bracketed to an LGA775 socket and a Core 2 Extreme QX6850, which runs very hot when OC'd. The fan that came with the cooler pushes 76.9 CFM at 3.5 mmH20, which I realize isn't half bad, but the fan uses a 3 pin connector and a separate 2 pin connected to a rheostat that sits in a PCI slot bracket (archaic, I know). I don't feel like crawling under my desk and behind my PC to tweak CPU fan speeds on the fly, and if I try to connect that 2 pin header into the fourth CPU fan pin without grounding it, it behaves erratically. I don't have the means to strip wires and crimp on a new connector. So that's why I'm looking for a new PWM fan. I figured since the iPPC 2000 and 3000 cost the same right now, I'd get the 3000 for more headroom and simply run it slower most of the time. My next option would be a two-pack of Corsair ML120, they are only $3 more than either Noctua on Amazon right now.
  6. Hello, new user here so please be gentle. I was wondering if it's possible for a slow fan to bottleneck the performance of a faster fan. For example, I am thinking of purchasing for my heatsink a Noctua NF-F12 Industrial PPC-3000 (110 CFM airflow and 7.63 mmH20 static pressure at full-chooch). Behind it I would have a generic fan from an old Alienware case exhausting at 45 CFM. Would I be limiting the efficiency of my cooler if the hot air behind it can't be dissipated fast enough? Would this create problems with air swirl in that part of the case? I have about 3.5 cm of heatsink infront of and behind the CPU fan, and about 8 cm between CPU and exhaust fan. There are no additional holes in the case around the exhaust fan and no top vents.