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Thread: Which power supply?

  1. #1
    YUKIKAZE arthurleung's Avatar
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    Feb 2005
    88 times in 83 posts
    • arthurleung's system
      • Motherboard:
      • Asus P5E (Rampage Formula 0902)
      • CPU:
      • Intel Core2Quad Q9550 3.6Ghz 1.2V
      • Memory:
      • A-Data DDR2-800 2x2GB CL4
      • Storage:
      • 4x1TB WD1000FYPS @ RAID5 3Ware 9500S-8 / 3x 1TB Samsung Ecogreen F2
      • Graphics card(s):
      • GeCube HD4870 512MB
      • PSU:
      • Corsair VX450
      • Case:
      • Antec P180
      • Operating System:
      • Windows Server 2008 Standard
      • Monitor(s):
      • Dell Ultrasharp 2709W + 2001FP
      • Internet:
      • Be*Unlimited 20Mbps

    Which power supply?

    Need a couple of ultra-low power PSU for my systems.

    Ideally need one in 100W range (for a small 24x7 server) and one in 300W range (for NAS). Need to have very high efficiency. Don't mind if there is a fan or not as long as it is cheap.

    Some interesting data for everyone:
    Core2Duo Notebook: Idle 20W Max 56W
    Athlon XP 2400+ with old crap PSU (probably 60% efficient or less): Idle 108W
    Pentium D 4Ghz + 7900GT + Tagan Easycon: Idle 181W CPU Max 265W

    (Have not tried testing with 3D games since I just bought the power meter)

    Workstation 1: Intel i7 950 @ 3.8Ghz / X58 / 12GB DDR3-1600 / HD4870 512MB / Antec P180
    Workstation 2: Intel C2Q Q9550 @ 3.6Ghz / X38 / 4GB DDR2-800 / 8400GS 512MB / Open Air
    Workstation 3: Intel Xeon X3350 @ 3.2Ghz / P35 / 4GB DDR2-800 / HD4770 512MB / Shuttle SP35P2
    HTPC: AMD Athlon X4 620 @ 2.6Ghz / 780G / 4GB DDR2-1000 / Antec Mini P180 White
    Mobile Workstation: Intel C2D T8300 @ 2.4Ghz / GM965 / 3GB DDR2-667 / DELL Inspiron 1525 / 6+6+9 Cell Battery

    Display (Monitor): DELL Ultrasharp 2709W + DELL Ultrasharp 2001FP
    Display (Projector): Epson TW-3500 1080p
    Speakers: Creative Megaworks THX550 5.1
    Headphones: Etymotic hf2 / Ultimate Ears 10 Pro

    Storage: 8x2TB Hitachi @ DELL PERC 6/i RAID6 / 13TB Non-RAID Across 12 HDDs
    Consoles: PS3 Slim 120GB / Xbox 360 Arcade 20GB / PS2

  2. #2 member Agent's Avatar
    Join Date
    Jul 2003
    1,607 times in 1,045 posts

    Re: Which power supply?

    Would you be willing to post your results in: please?

    Sorry to say but cheap and high efficiency don't go together
    Computer hardware and software at amazing prices, available online from Scan Computers UK

    There is a few on there, but as you can see, they get a bit of markup.
    Quote Originally Posted by Saracen View Post
    And by trying to force me to like small pants, they've alienated me.

  3. #3
    Senior Member Giraffe's Avatar
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    Feb 2007
    near Northampton
    39 times in 34 posts
    • Giraffe's system
      • Motherboard:
      • Gigabyte GA-Z97-D3H
      • CPU:
      • Intel Core i5 5675C, S 1150, Broadwell, Quad Core, 3.1GHz, 3.6GHz Turbo
      • Memory:
      • Crucial Ballistix DDR3 1600, 4GB
      • Storage:
      • 512GB Samsung SSD, 850 Pro, SATA 3
      • Graphics card(s):
      • Integrated
      • PSU:
      • Seasonic S12G 450W 80+ Gold
      • Case:
      • Antec P100
      • Operating System:
      • Windows 7 Pro, 32-bit
      • Monitor(s):
      • Dell U2415, 24", 16:10
      • Internet:
      • TP-Link modem-router; 3mbps sync.

    Re: Which power supply?

    Athlon XP 2400+ with old crap PSU (probably 60% efficient or less): Idle 108W
    Same here, similar setup; put a new Seasonic S12 330W in and it dropped to 85W idle.

    The new rig is 45W from the mains (Cool'n'Quiet enabled), so the S12 is at an output where the efficiency drops off (<20%).
    For your ~300W setup, the Seasonic, if you can still get it, is very quiet and runs almost cold - Scan doesn't have it listed.

    There's bit of a problem getting small, low-powered PSUs that are of good quality - I don't know if Shuttle-type are any good.

    Political lubricant:

    Rocket WMD45

  4. #4
    Senior Member godsdog's Avatar
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    Jul 2007
    Jelly Wall Hotel
    61 times in 54 posts
    • godsdog's system
      • Case:
      • Silverstone TJ04
      • Monitor(s):
      • Samsung 204B
      • Internet:
      • UKFSN ..have to check

    Re: Which power supply?

    "Ladies and Gentlemen, take my advice: Pull down your pants and slide on the ice"

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