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  • PSU Help for old fogey

    Hey guys its been 10 years since my last build and I need some help with a new PSU.

    I need a 1000w psu with an 8-pin EATX12V_1 Connector for my "Crosshair Formula-z" motherboard".

    I need a psu with enough connectors to run 3x hd, 1x bd rom, 1x cdrom, 1x gpu & 1x "xonar" soundcard.

  • #2
    Are you quite sure you need 1kw ??

    What's the specs, could probably easily get away with less than that, and most decent psu's come with an 8pin connector
    --
    Fractal R4 (shhh!) 3570k, z77x-d3h, 16gb, R9-270X, 240gb SSD, 2tb mirror w/ 60gb cache drive

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    • #3
      Originally posted by beowulf View Post
      Hey guys its been 10 years since my last build and I need some help with a new PSU.

      I need a 1000w psu with an 8-pin EATX12V_1 Connector for my "Crosshair Formula-z" motherboard".

      I need a psu with enough connectors to run 3x hd, 1x bd rom, 1x cdrom, 1x gpu & 1x "xonar" soundcard.
      Looking at those requirements you'd need about 500W. Just because a PSU is rated high at 1000W won't mean its the same quality as the 500W. Better to get a smaller capacity, higher quality PSU than look at max numbers.
      Main Rig: A8 7670k @4.5GHz // Gigabyte F2A88-XM D3H // 8GB Corsair Vengeance Pro 2400MHz // Sapphire Nitro R9 380 // Samsung 850 250GB // Samsung F3 500GB // EVGA SuperNOVA 550 G2 // Dell U2312HM // Zowie EC2
      Dell Inspiron 15 Special Edition:
      i7 3612QM // 6GB RAM // 7730M // Samsung 840 250GB // Backlit K/B // 1080p Panel // Soundblaster Evo Wireless

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      • #4
        Thanks guys but i have a 10 year old corsair 650w psu but it doesn't have enough connectors and no 8pin connector slots. i have plenty of modular cables just not enough slots for them.

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        • #5
          Originally posted by beowulf View Post
          Thanks guys but i have a 10 year old corsair 650w psu but it doesn't have enough connectors and no 8pin connector slots. i have plenty of modular cables just not enough slots for them.
          Probably just because of the age then, I think 8 pin became more mainstream within the last 10 years. What's the graphics card you'll be using?
          Main Rig: A8 7670k @4.5GHz // Gigabyte F2A88-XM D3H // 8GB Corsair Vengeance Pro 2400MHz // Sapphire Nitro R9 380 // Samsung 850 250GB // Samsung F3 500GB // EVGA SuperNOVA 550 G2 // Dell U2312HM // Zowie EC2
          Dell Inspiron 15 Special Edition:
          i7 3612QM // 6GB RAM // 7730M // Samsung 840 250GB // Backlit K/B // 1080p Panel // Soundblaster Evo Wireless

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          • #6
            Graphics card is an old radion hd 5770 but i need a connector for my xonar essence stx as well.

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            • #7
              This should be more than adequate
              http://www.aria.co.uk/Products/Compo...roductId=53990

              Motherboard Connector:
              24-Pin

              Connectors:
              2x 8-Pin (4+4-Pin) CPU +12V Power (Motherboard power)
              9x SATA Power (HDD/SSDs, Optical Drives)
              6x 4-Pin Molex Power (Fans, old HDDs, Water-Cooling Pumps)
              2x FDD Power (Old Floppy, Soundcards or other add-on expansion cards)
              1x 6-Pin PCI-e Power (Graphics Cards)
              1x 8-Pin (6+2-Pin) PCI-e Power (Graphics Cards)
              I've bolded the bit you need for the motherboard
              --
              Fractal R4 (shhh!) 3570k, z77x-d3h, 16gb, R9-270X, 240gb SSD, 2tb mirror w/ 60gb cache drive

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              • #8
                Thank you, i will get that make but Will have a look at a little bigger W as i have about 8 fans in the case and would prefer a modular version.

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                • #9
                  CX600M perhaps? http://www.aria.co.uk/Products/Compo...roductId=53656
                  --
                  Fractal R4 (shhh!) 3570k, z77x-d3h, 16gb, R9-270X, 240gb SSD, 2tb mirror w/ 60gb cache drive

                  Comment


                  • #10
                    Originally posted by beowulf View Post
                    Thanks guys but i have a 10 year old corsair 650w psu but it doesn't have enough connectors and no 8pin connector slots. i have plenty of modular cables just not enough slots for them.
                    The only connections that could hinder you are those to the motherboard and some graphics cards. As others said, a new PSU will have these.

                    When it comes to disk drives and the like, I have boxes full of Molex splitters from old systems and can daisy chain to the Moon and back.

                    Whatever modular system you use – I've tried a bunch of them – you could end up with splitters. It is often tidier than running straight off the PSU.

                    I'm with the 500 watt brigade. I have that running an equally elderly graphics card and near on a dozen drives, including power to various USB3 cards and front panels.

                    1000 watts would light up our village. Think about your electricity bills!
                    Win 10 Pro 64-bit + Asus Z-170-K + Intel i5-6500 + 512GB Samsung M.2 PCI-e SSD + 16GB DDR4 2400MHz Memory
                    Win 10 Pro 64-bit + Asus M5A88-M EVO + AMD Phenom II X6 + 8GB Corsair XMS3 1600 + Radeon HD 6450
                    Win 10 Home 32-bit + Asus M2N-SLI DeLuxe + AMD Athlon 64 X2, Dual Core 5400 + 4.0 GB Memory + NVIDIA GeForce 8600 GT

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                    • #11
                      Originally posted by michaelkenward View Post
                      1000 watts would light up our village. Think about your electricity bills!
                      Actually, a system will only ever draw the power it needs, be it from a 300W psu, or a 1500W unit

                      The initial outlay though, that's another matter
                      --
                      Fractal R4 (shhh!) 3570k, z77x-d3h, 16gb, R9-270X, 240gb SSD, 2tb mirror w/ 60gb cache drive

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                      • #12
                        Yup although different PSUs have different efficiency profiles depending on the power they draw, it's possible that a 1500W PSU might be slightly less efficient when pulling 300W than it would be when running under the higher loads for which it has probably been optimised.

                        That difference will be relatively minor though, and in general SB is absolutely right that the 'wattage' on a PSU indicates what it is capable of safely achieving, rather than what it will do as a 'matter of course'.

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                        • #13
                          Originally posted by andyn View Post
                          Yup although different PSUs have different efficiency profiles depending on the power they draw, it's possible that a 1500W PSU might be slightly less efficient when pulling 300W than it would be when running under the higher loads for which it has probably been optimised.
                          That's highly likely, which is why I said it. Hence "underrunning" a 1000W PSU will use more electricity than running a 500W PSU at its design level. Could be quite a difference for a PC that is always on. Looked at your electricity bills lately? I have. Horrifying.

                          An ultra-efficient 500 watt PSUs will also cost less than a less efficient 1000-watt PSU.
                          Win 10 Pro 64-bit + Asus Z-170-K + Intel i5-6500 + 512GB Samsung M.2 PCI-e SSD + 16GB DDR4 2400MHz Memory
                          Win 10 Pro 64-bit + Asus M5A88-M EVO + AMD Phenom II X6 + 8GB Corsair XMS3 1600 + Radeon HD 6450
                          Win 10 Home 32-bit + Asus M2N-SLI DeLuxe + AMD Athlon 64 X2, Dual Core 5400 + 4.0 GB Memory + NVIDIA GeForce 8600 GT

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                          • #14
                            Yup as a good rule of thumb most PSUs will be fairly efficient when running at 70% or so of their rated capacity.

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                            • #15
                              Originally posted by andyn View Post
                              Yup as a good rule of thumb most PSUs will be fairly efficient when running at 70% or so of their rated capacity.
                              Makes sense.

                              I guess it is like running a car engine. Better mpg at cruising speed than flat out or crawling through traffic.
                              Win 10 Pro 64-bit + Asus Z-170-K + Intel i5-6500 + 512GB Samsung M.2 PCI-e SSD + 16GB DDR4 2400MHz Memory
                              Win 10 Pro 64-bit + Asus M5A88-M EVO + AMD Phenom II X6 + 8GB Corsair XMS3 1600 + Radeon HD 6450
                              Win 10 Home 32-bit + Asus M2N-SLI DeLuxe + AMD Athlon 64 X2, Dual Core 5400 + 4.0 GB Memory + NVIDIA GeForce 8600 GT

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