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Thread: Power Supply advice

  1. #1
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    Power Supply advice

    My PC has been using the same Tagan 480W psu for several years, since back when I had an Socket 754 Athlon64 I think!

    Thinking I might be best looking for a more modern, powerful/efficient/quieter PSU.

    Question is what to get? what sort of Wattage do I need? (I'll give system specs in a moment).

    I quite like the Corsair VX450W I have in my server, but suspect something a bit beefier might be needed than that?

    My current system specs are:

    Asus P5Q-E
    Core2 Duo E6550
    2Gb DDR2-800 (liable to upgrade to 4Gb DDR2-1066 soon)
    BFG 8800GT OC
    2x Samsung 500Gb (pre-F1) SATA
    1x Seagate 200Gb SATA
    Antec 300 case

    Ideally something that won't cost a huge amount (say around £50ish), with a bit of future proofing for a faster CPU later (maybe quad core) and faster graphics card sometime later, and of course faster/newer SATA drives to replace my aging ones (Samsung F3s probably).

    kelly
    Desktop P5QE C2D E6550 4G DDR21066 Antec 300 480GTX
    MacBook Pro 2.2Ghz 10.9
    Acer 7738G Linux Mint
    Server P5Q-E C2D E6550 4G DDR2800, RAID5, Antec 900


  2. #2
    Anthropomorphic Personification shaithis's Avatar
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    Re: Power Supply advice

    I would look in the 500-600w range if you are thinking of quad core and a new gfx card (obviously the gfx card is key and could change the PSU rating needed drastically).

    I personally love the Seasonic brand, although I have had good results from Enermax, Tagan and Corsair.

    A quick look on Scan and I almost had a heart attack, seems PSU prices are a lot higher then they used to be :S
    Main PC: Asus Rampage IV Extreme / 3960X@4.5GHz / Antec H1200 Pro / 32GB DDR3-1866 Quad Channel / Sapphire Fury X / Areca 1680 / 850W EVGA SuperNOVA Gold 2 / Corsair 600T / 2x Dell 3007 / 4 x 250GB SSD + 2 x 80GB SSD / 4 x 1TB HDD (RAID 10) / Windows 10 Pro, Yosemite & Ubuntu
    HTPC: AsRock Z77 Pro 4 / 3770K@4.2GHz / 24GB / GTX 1080 / SST-LC20 / Antec TP-550 / Hisense 65k5510 4K TV / HTC Vive / 2 x 240GB SSD + 12TB HDD Space / Race Seat / Logitech G29 / Win 10 Pro
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  3. #3
    Poor graduate. Ulti's Avatar
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    Re: Power Supply advice

    It depends on what graphics card you're getting. The Corsair VX450W is brilliant for current usage and will be fine if you put in something like a 5850 and a quad core. Something like a 4890/5870 and a quad will work fine too but it will begin to push the limits slightly. If you're into vigorous overclocks then you may want to look into something bigger.

    I'm not too sure on the nvidia cards power consumption but they're gonna be releasing new cards "soon" anyway so you might wanna wait for them to come out before deciding.

    For around £50 you're not gonna be able to get a decent 600W PSU though and if you were to upgrade that's what you'd wanna look at.

    For £65 you could get this NorthQ Black Magic Flex 850W but it's going to be rather overkill for everything and apparently it has weird rail distributions (although this won't matter too much) but still has good reviews such as from JonnyGuru and here.

  4. #4
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    • kellyharding's system
      • Motherboard:
      • Asus P5Q-E
      • CPU:
      • Core2Duo E6550
      • Memory:
      • 4Gb OCZ
      • Storage:
      • 3x 1TB Samsung F3
      • Graphics card(s):
      • Geforce 480GTX 1.5Gb
      • PSU:
      • Antec 750w Modular
      • Case:
      • Antec 300
      • Operating System:
      • Win7 (64bit Ult)/Linux (Ubuntu/Mint)/OS X SL
      • Monitor(s):
      • Samsung SM2343BW, NEC 1970nxp
      • Internet:
      • PlusNet 56Mb fibre

    Re: Power Supply advice

    Quote Originally Posted by shaithis View Post
    I would look in the 500-600w range if you are thinking of quad core and a new gfx card (obviously the gfx card is key and could change the PSU rating needed drastically).

    I personally love the Seasonic brand, although I have had good results from Enermax, Tagan and Corsair.

    A quick look on Scan and I almost had a heart attack, seems PSU prices are a lot higher then they used to be :S
    All prices have shot up really it seems, not just PSUs, ram especially, when I bought 4Gb of corsair DDR2 it was £49, now it is nearer £75-80!

    Yeah I've been pleased with the Tagan and Corsair PSUs I've had in the past, solid and reliable, would certaintly do the job I think.

    Suspect 600W would be a minimum perhaps then? One things for sure I'm never going to buy a cheapo PSU after the experiences I had with one years back, of it overvolting the board, cpu, graphics card and hdds, think i'd rather have a lower power CPU/Graphics card than skimp on a PSU after that experience!
    Desktop P5QE C2D E6550 4G DDR21066 Antec 300 480GTX
    MacBook Pro 2.2Ghz 10.9
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    Server P5Q-E C2D E6550 4G DDR2800, RAID5, Antec 900


  5. #5
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    • kellyharding's system
      • Motherboard:
      • Asus P5Q-E
      • CPU:
      • Core2Duo E6550
      • Memory:
      • 4Gb OCZ
      • Storage:
      • 3x 1TB Samsung F3
      • Graphics card(s):
      • Geforce 480GTX 1.5Gb
      • PSU:
      • Antec 750w Modular
      • Case:
      • Antec 300
      • Operating System:
      • Win7 (64bit Ult)/Linux (Ubuntu/Mint)/OS X SL
      • Monitor(s):
      • Samsung SM2343BW, NEC 1970nxp
      • Internet:
      • PlusNet 56Mb fibre

    Re: Power Supply advice

    Quote Originally Posted by Ulti View Post
    It depends on what graphics card you're getting. The Corsair VX450W is brilliant for current usage and will be fine if you put in something like a 5850 and a quad core. Something like a 4890/5870 and a quad will work fine too but it will begin to push the limits slightly. If you're into vigorous overclocks then you may want to look into something bigger.
    Don't tend to overclock much, as prefer to keep noise, power and heat down. Maybe a slight overclock would be all I'd do, but I suspect I'd be wiser to get a VX550W psu than the 450W (I got the 450W for my server as it is mostly hdds and cpu rather than anything else, no graphics card (crappy old 2mb PCI card!))
    Quote Originally Posted by Ulti View Post
    I'm not too sure on the nvidia cards power consumption but they're gonna be releasing new cards "soon" anyway so you might wanna wait for them to come out before deciding.
    Anything of the nVidia cards that would be worth the upgrade in terms of performance gains would certainly put out more heat and draw more power than my current BFG 8800GT OC does and cost about double my budget (damn cars are expensive!).

    Quote Originally Posted by Ulti View Post
    For around £50 you're not gonna be able to get a decent 600W PSU though and if you were to upgrade that's what you'd wanna look at.
    I had a feeling I was being optimistic at the £50 mark! suspect I'll skip on upgrading CPU and graphics and stick with E6550 and 8800GT for another 6-9+ months perhaps and instead focus on a decent PSU.
    Desktop P5QE C2D E6550 4G DDR21066 Antec 300 480GTX
    MacBook Pro 2.2Ghz 10.9
    Acer 7738G Linux Mint
    Server P5Q-E C2D E6550 4G DDR2800, RAID5, Antec 900


  6. #6
    Not a good person scaryjim's Avatar
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    Re: Power Supply advice

    tbh if you're only planning on getting one graphics card when you upgrade, 450W would probably be more than enough if you're buying a decent branded PSU that will actually output the rated Wattage. If you're considering SLI / Crossfire or a dual GPU card like the 5970, that's the time to look at a beefier PSU: with just a single GPU you really shouldn't need it though. If you're getting something with a lot more power than that make sure it's got a wide-range efficiency: with a 600+W PSU your systems only going to be pulling 10% load at idle and PSU efficiency can drop off dramatically at very low loads...

    p.s. Just to give you an idea, Hexus's top end everything-including-the-kitchen-sink test rig, with a 965 Extreme Edition core i7, fully loaded X58 motherboard, and a 4870 X2 (about the most power hungry graphics card ever) only pulled ~ 360W *at the wall* at full 3D load...

  7. #7
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    • kellyharding's system
      • Motherboard:
      • Asus P5Q-E
      • CPU:
      • Core2Duo E6550
      • Memory:
      • 4Gb OCZ
      • Storage:
      • 3x 1TB Samsung F3
      • Graphics card(s):
      • Geforce 480GTX 1.5Gb
      • PSU:
      • Antec 750w Modular
      • Case:
      • Antec 300
      • Operating System:
      • Win7 (64bit Ult)/Linux (Ubuntu/Mint)/OS X SL
      • Monitor(s):
      • Samsung SM2343BW, NEC 1970nxp
      • Internet:
      • PlusNet 56Mb fibre

    Re: Power Supply advice

    Quote Originally Posted by scaryjim View Post
    tbh if you're only planning on getting one graphics card when you upgrade, 450W would probably be more than enough if you're buying a decent branded PSU that will actually output the rated Wattage. If you're considering SLI / Crossfire or a dual GPU card like the 5970, that's the time to look at a beefier PSU: with just a single GPU you really shouldn't need it though. If you're getting something with a lot more power than that make sure it's got a wide-range efficiency: with a 600+W PSU your systems only going to be pulling 10% load at idle and PSU efficiency can drop off dramatically at very low loads...

    p.s. Just to give you an idea, Hexus's top end everything-including-the-kitchen-sink test rig, with a 965 Extreme Edition core i7, fully loaded X58 motherboard, and a 4870 X2 (about the most power hungry graphics card ever) only pulled ~ 360W *at the wall* at full 3D load...
    I could go the Crossfire route (board I have supports 3 way Crossfire iirc), but i doubt i would.

    More likely to add bigger/faster/newer hdds and a quad core CPU, but the quad-core probably wouldn't be for a bit.

    Just think thinking about the PSU before going off and spending money on other parts is a wiser move.

    kelly
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    MacBook Pro 2.2Ghz 10.9
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  8. #8
    Poor graduate. Ulti's Avatar
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      • Graphics card(s):
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      • PSU:
      • SilverStone SX500-LG V2.0
      • Case:
      • Jonsbo UMX3 Tempered Glass Version
      • Operating System:
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    Re: Power Supply advice

    Well I think if you're not gonna get a quad core any time soon then there's really no point getting a new PSU anytime soon, especially if it's only for the HDDs.

  9. #9
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    • kellyharding's system
      • Motherboard:
      • Asus P5Q-E
      • CPU:
      • Core2Duo E6550
      • Memory:
      • 4Gb OCZ
      • Storage:
      • 3x 1TB Samsung F3
      • Graphics card(s):
      • Geforce 480GTX 1.5Gb
      • PSU:
      • Antec 750w Modular
      • Case:
      • Antec 300
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      • Win7 (64bit Ult)/Linux (Ubuntu/Mint)/OS X SL
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    Re: Power Supply advice

    Quote Originally Posted by Ulti View Post
    Well I think if you're not gonna get a quad core any time soon then there's really no point getting a new PSU anytime soon, especially if it's only for the HDDs.
    All depends on money really, gotta buy a new car first, so computer stuff gets decided after that i guess.

    So 480W Tagan is good enough for the time being, am I right in thinking that it doesn't have much in the way of room for upgrading the gfx or cpu?
    Desktop P5QE C2D E6550 4G DDR21066 Antec 300 480GTX
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  10. #10
    Senior Member Pob255's Avatar
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    Re: Power Supply advice

    The tagan should be ok, but if it's an older design it'll be more +5v heavy and weaker on the +12v than most current PSU's and as most graphics cards and cpu's are all about 12v now you could hit issues with a higher demand card or a quad core cpu.

    An extra Hard drive or two shouldn't be an issue in the slightest, a fast hard drive like the F3 only uses around 20w under load, your 8800gt will pull around 85w under load or about 4 hard drives worth.
    And if you replace current hd's with new hd's it's even less of an issue.

  11. #11
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    • kellyharding's system
      • Motherboard:
      • Asus P5Q-E
      • CPU:
      • Core2Duo E6550
      • Memory:
      • 4Gb OCZ
      • Storage:
      • 3x 1TB Samsung F3
      • Graphics card(s):
      • Geforce 480GTX 1.5Gb
      • PSU:
      • Antec 750w Modular
      • Case:
      • Antec 300
      • Operating System:
      • Win7 (64bit Ult)/Linux (Ubuntu/Mint)/OS X SL
      • Monitor(s):
      • Samsung SM2343BW, NEC 1970nxp
      • Internet:
      • PlusNet 56Mb fibre

    Re: Power Supply advice

    Quote Originally Posted by Pob255 View Post
    The tagan should be ok, but if it's an older design it'll be more +5v heavy and weaker on the +12v than most current PSU's and as most graphics cards and cpu's are all about 12v now you could hit issues with a higher demand card or a quad core cpu.

    An extra Hard drive or two shouldn't be an issue in the slightest, a fast hard drive like the F3 only uses around 20w under load, your 8800gt will pull around 85w under load or about 4 hard drives worth.
    And if you replace current hd's with new hd's it's even less of an issue.
    The Tagan is one of the earlier ones, model number TG-480-U01 iirc.

    kelly
    Desktop P5QE C2D E6550 4G DDR21066 Antec 300 480GTX
    MacBook Pro 2.2Ghz 10.9
    Acer 7738G Linux Mint
    Server P5Q-E C2D E6550 4G DDR2800, RAID5, Antec 900


  12. #12
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      • Graphics card(s):
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      • PSU:
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      • Win7 64
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    Re: Power Supply advice

    Scan has specials on its deal for the day, with free p+p for hexus members:

    SST-ST50F 500w has been very well received by Hardware secrets:

    http://www.hardwaresecrets.com/article/548/7

    They got 600w out of it at 50C. £41 today.

  13. #13
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    • kellyharding's system
      • Motherboard:
      • Asus P5Q-E
      • CPU:
      • Core2Duo E6550
      • Memory:
      • 4Gb OCZ
      • Storage:
      • 3x 1TB Samsung F3
      • Graphics card(s):
      • Geforce 480GTX 1.5Gb
      • PSU:
      • Antec 750w Modular
      • Case:
      • Antec 300
      • Operating System:
      • Win7 (64bit Ult)/Linux (Ubuntu/Mint)/OS X SL
      • Monitor(s):
      • Samsung SM2343BW, NEC 1970nxp
      • Internet:
      • PlusNet 56Mb fibre

    Re: Power Supply advice

    Quote Originally Posted by rushholme View Post
    Scan has specials on its deal for the day, with free p+p for hexus members:

    SST-ST50F 500w has been very well received by Hardware secrets:

    http://www.hardwaresecrets.com/article/548/7

    They got 600w out of it at 50C. £41 today.
    thanks for that, i'll take a look, i'd just placed an order prior to your mentioning this as luck would have it :/ but will wait a little now due to funds etc being low to get a PSU.
    Desktop P5QE C2D E6550 4G DDR21066 Antec 300 480GTX
    MacBook Pro 2.2Ghz 10.9
    Acer 7738G Linux Mint
    Server P5Q-E C2D E6550 4G DDR2800, RAID5, Antec 900


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