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Corsair HX850 enough?

Hello informative people of Tomshardware

I'll start by listing my PC components

Corsair Obsidian 800D
Corsair HX850
Core i7 920 @ 4.3Ghz 1.360V
POV GTX570 Beast Ed. @ 950/1900/2200 1.2V X2 (Second one hasn't arrived yet)
3 x 1GB OCZ 1333Mhz 8-8-8-24 Running at 1230Mhz 6-7-6-18 1.68V
Sammy Spinpoint F3 500GB (Plan on buying an SSD soon)
10 Case fans all 12V
Gigabyte GA-EX58-UD5
A Cold cathode
A 18W Pump
A 10W Pump
DVD Drive
Blu Ray drive
Mouse, keyboard, Headset.

So is my 850W PSU good enough ? :heink:
19 answers Last reply Best Answer
More about corsair hx850 enough
  1. No.

    /sarcasm
  2. Care to elaborate further?
    :)
  3. To me it seems like a stupid question, of course it will be able to power your build. No offense mate.

    Edit: the one 'problem' you might have is needing to daisy chain some of your fans, as the Corsair HX850 has twelve 4-pin peripheral (molex) connectors, to me it looks like you'd need 13, but daisy chaining is easy and not really a problem at all.
  4. Well I figured a stock 570 eats about 215W, so an overvolted card would eat 250W roughly, times that by 2 = 500W, Plus a highly overclocked CPU = 200W roughly. So thats 700W
    + Mobo, RAM, HDD, Fans, Pumps.... thats surely another 150-200W which gives a total of 850-900W max load.

    Its an expensive rig, so to me its not a stupid question.
  5. That's on full load, so you'd have to be stress/torture testing on both the CPU and GPU to get anywhere near that and you'd have to be doing it 24/7 to start to have problems with something as high quality as that Corsair.
  6. I wouldn't want to push my PSU too hard, a CPU intensive game could push the load to 800W+ I know the corsair HX850 is high quality but it'll be very close to its limits in some situations.
  7. Yes, it should be ok. The GTX570's in SLI, will draw ~400-415 watts at full load. You've obviously OC'd the CPU, but even on load, the i7 920 is relatively power efficient.

    You shouldn't have a problem.
  8. Yes, but it says in that review

    "800+ to a KiloWatt is recommended if you plan on any overclocking" I have heavy overclocks.
  9. Personally, I don't like to cut it that close.

    But, before I just decide to upgrade the PSU, I think I'd try it with my current PSU.

    The PSU wattage doesn't matter all that much. There's a vast difference in how PSU's are rated. Some can meet their claims, some can't. This is why I believe most recommendations on PSU wattage are overestimated a touch.
  10. I have a feeling they are covering their asses in a similar fashion to AMD and Nvidia when they make PSU recommendations.
  11. Best answer
    The HX850 is very conservatively rated, its stronger than many 1kW units on the market, its more powerful than the Antec CP-1000 unit, so the wattage rating on the unit doesnt mean much. That Guru3d review has the power measured at the wall, and has 2 GTX 570s pulling 410W from the wall which on an 85% efficient unit is about 350W from the PSU which seems about right.

    The HX 850 is a very strong unit for an 850W unit and will be plenty for that system, hardware secrets was able to pull 1000W from it with it staying above 80% efficiency and in spec before it shut down, you have plenty of power available.

    http://www.hardwaresecrets.com/article/741/8
  12. The HX850 is rated for 850W of continuous power, so if your system needs 800W all the time, it'll give it to you ;)

    I'm thinking about either the HX850 or AX850 if I get a third GTX 470, but that won't be for a while :(
  13. Thanks for all the help, seems as though the HX850 is underrated, and could have been a 1000W 80+ PSU. :)
  14. Seeing as 850W is 85% of 1000W.... :D
  15. boiler1990 said:
    Seeing as 850W is 85% of 1000W.... :D

    Yeah yeah yeah.... you know what I meen :lol: :kaola:
  16. Did a mod change this to a question rather than a discussion?, Could have sworn those "Slelect as best answer" buttons weren't there before...

    Maybe I'm going loopy.
  17. Best answer selected by omgitzfatal.
  18. It was my magic cape. :)
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