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Thread: Power Supply thoughts

  1. #1
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    Power Supply thoughts

    So, I have approx £100 to budget for a replacement power supply to replace my aging Tagan T480-U01.

    Main reason is if I upgrade the graphics card (currently 8800GT/512) I suspect it will struggle, as it has 38A on the 12V rail.

    I've been looking at the Corsair TX850V2 which is available at £86 at box.co.uk post free (or £94 post free from scan).

    But was also looking at the Antec TruePower 750W NEW modular and wondering which to go for. The Antec has higher 12V amps (100A vs the Corsair's 70A), but is slightly more expensive at nearer £100 (but on todayonly for £95.99). Or another option I looked at was Antec HCC-750, which has a 12V rail of 160A according to the spec, but split across 4 rails of 40A each.

    What I need is some thoughts/suggestions on this? is the Corsair a good bet? or is the Antec ones a better bet?

    Kelly
    Last edited by kellyharding; 17-05-2011 at 11:27 AM. Reason: minor correction
    Desktop MSI B550M Mortar, Ryzen 5 3600, 16GB DDR4 3200, 1Tb NVMe SSD, 2x480GB SATA SSD, 4Tb + 2x2Tb HDD, 3x monitors, Windows 10 Pro 64bit
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  2. #2
    Pork & Beans Powerup Phage's Avatar
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    Re: Power Supply thoughts

    I own the Antec 750w. It appears to be a re-badged Seasonic, and I can vouch for it's quality. It's currently running my rig on the left with no problem. It also appears to be silent under my desk. Probably drowned out by all the fans I have going on the GPUs and CPU !

    It's reviewed here.
    http://www.jonnyguru.com/modules.php...Story&reid=140
    Society's to blame,
    Or possibly Atari.

  3. #3
    Senior Member Pob255's Avatar
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    Re: Power Supply thoughts

    It'll depend what you upgrade too, that still should be plenty for a mid ranged card, for a single high end card, say a gtx580, then you'd want to look at the 500-550w range.
    A good 600-750w would cope with a pair of mid range cards.

    I's say have a look at the Corsair HX650w http://www.scan.co.uk/products/650w-...-12v-120mm-fan or lower cost but very good XFX xxx 650w http://www.scan.co.uk/products/650w-...135mm-gray-fan
    Both should be the same internal, namely a seasonic M12ii-Bronze

  4. #4
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    • kellyharding's system
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    Re: Power Supply thoughts

    Quote Originally Posted by Pob255 View Post

    I's say have a look at the Corsair HX650w http://www.scan.co.uk/products/650w-...-12v-120mm-fan or lower cost but very good XFX xxx 650w http://www.scan.co.uk/products/650w-...135mm-gray-fan
    Both should be the same internal, namely a seasonic M12ii-Bronze
    Looking at those, they're not much less than the 750/850W ones I was looking at, but 20+A less.

    kelly
    Desktop MSI B550M Mortar, Ryzen 5 3600, 16GB DDR4 3200, 1Tb NVMe SSD, 2x480GB SATA SSD, 4Tb + 2x2Tb HDD, 3x monitors, Windows 10 Pro 64bit
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  5. #5
    Senior Member Pob255's Avatar
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      • Motherboard:
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      • CPU:
      • FX8350 & CM Hyper 212+
      • Memory:
      • 4 x 2gb Corsair Vengence 1600mhz cas9
      • Storage:
      • 512gb samsung SSD +1tb Samsung HDD
      • Graphics card(s):
      • EGVA GTX970
      • PSU:
      • Seasonic GX 650W
      • Case:
      • HAF 912+
      • Operating System:
      • W7 Pro
      • Monitor(s):
      • iiyama XB3270QS-B1 32" IPS 1440p

    Re: Power Supply thoughts

    the xfx is £71 and modular.

    Also you need to look again at some of those ampage numbers, eg just because the HCG-750 has 4 rails at 40amps doesn't mean it can provide 160amps @12volts (or 1920watts) it can actually do 62.5amps @ 12volts (or the whole 750w)
    a gtx480 (currently the single highest power consumption single gpu card) uses 308 watts under full stress testing or 25a @12v
    Drop down that scale slightly say a gtx560Ti = 202w = ~17a, 6950 = 182w = ~15a (remember these are max load stress test, peak gaming load is generally around 50w lower) your single gt8800 is about 78w load.

    Single vs multiple rails is another argument altogether.

  6. #6
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    • kellyharding's system
      • Motherboard:
      • MSI B550M Mortar
      • CPU:
      • AMD Ryzen R5 3600
      • Memory:
      • 16Gb Geil
      • Storage:
      • 1TB WD Blue NVMe SSD, 2x 480GB SATA SSD, 4Tb WD BLack HDD, 2x Hiitachi 2Tb HDD
      • Graphics card(s):
      • Gigabyte WindForce GTX 970
      • PSU:
      • BeQuiet! System Power 700W
      • Case:
      • Thermaltake Core V21
      • Operating System:
      • Windows 10 Pro 64Bit
      • Monitor(s):
      • Acer 23", Samsung SM2343BW, NEC 1970nxp
      • Internet:
      • EE 70Mbps

    Re: Power Supply thoughts

    Decided on the Antec Truepower New 750 in the end, figured the difference between a 600w and the 750w wasn't enough to bother with and hopefully means the PSU will last me as long as the Tagan has (5+ years!) over several builds, and the Tagan is liable to get reused in another system on an old 965 chipset board.

    Kelly
    Desktop MSI B550M Mortar, Ryzen 5 3600, 16GB DDR4 3200, 1Tb NVMe SSD, 2x480GB SATA SSD, 4Tb + 2x2Tb HDD, 3x monitors, Windows 10 Pro 64bit
    Server MSI Z170A Gaming M7, Intel i7-6700K, 16Gb DDR 2400, 120Gb SATA SSD, 1Tb WD Black HDD, 4x 4Tb HDD in RAID5


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