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AnsweredEVGA X99 Classified EPS 8 pin

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4B91AAD8A56F4AA
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2017/07/17 15:22:18 (permalink)
i see on the motherboard there is 2x8 pin 12v power connections, do both 8 pin need connected or can i get away with only one till i can pickup a new psu?
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    bcavnaugh
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    Re: EVGA X99 Classified EPS 8 pin 2017/07/17 15:24:43 (permalink) ☼ Best Answerby baconinabun 2017/07/17 15:35:37
    Yes, use the EPS 8-pin 12V Power (PWR 8P1) one. Page 7 Part 2 of the Manual.
    post edited by bcavnaugh - 2017/07/17 15:27:35

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    4B91AAD8A56F4AA
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    Re: EVGA X99 Classified EPS 8 pin 2017/07/17 15:35:18 (permalink)
    many thanks, i did spot that but wasn't sure as the board has 2x8pin 
     
    will get on to in in the morning 
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    MelonGx
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    Re: EVGA X99 Classified EPS 8 pin 2017/08/11 04:07:40 (permalink)
    Better connect the 2nd EPS12V if you're overclocking or using E5 v3/v4 CPU with 12 cores or more.

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    bcavnaugh
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    Re: EVGA X99 Classified EPS 8 pin 2017/08/11 11:11:24 (permalink)
    MelonGx
    Better connect the 2nd EPS12V if you're overclocking or using E5 v3/v4 CPU with 12 cores or more.


    Did you even read the First Post?

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    MelonGx
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    Re: EVGA X99 Classified EPS 8 pin 2017/08/11 20:37:21 (permalink)
    bcavnaugh
    MelonGx
    Better connect the 2nd EPS12V if you're overclocking or using E5 v3/v4 CPU with 12 cores or more.


    Did you even read the First Post?
    Did you even quote a right article?

    Page 7 Part 2 shows a motherboard which has only one EPS12V slot.
    What OP asked is whether connect both EPS12V slots or not.
    Theoretically only plugging one of them should be enough for low power consuming CPUs like non-overclocked 6850K. So I said better plug the 2nd when overclocking or using 12C+ E5.

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    arestavo
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    Re: EVGA X99 Classified EPS 8 pin 2017/08/11 20:59:47 (permalink)
    As I understand it, a single EPS12V CPU connection can provide up to 188 watts of power (please correct me if I'm wrong).
     
    My overclocked 6950X at 4.4GHz and 1.363V is pulling around 220W of power as shown in HWMonitor in Cinebench R15. I had a 1660V3 (Xeon equivalent of a 5960X) prior to this and if I remember correctly it didn't get much past 165W at 4.3GHz and 1.35V. Granted, that's a software reading and not a direct measurement.
     
    You're likely fine unless you are putting your 5960X under LN2 and doing some extreme overclocking, or are looking to overclock a 6950X.
    post edited by arestavo - 2017/08/11 21:05:54
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    GTXJackBauer
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    Re: EVGA X99 Classified EPS 8 pin 2017/08/11 23:42:21 (permalink)
    You only need the second CPU power header plugged in if you're doing extreme OCing for 600w of craziness. 

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    bdary
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    Re: EVGA X99 Classified EPS 8 pin 2017/08/12 06:35:48 (permalink)
    Here's some info on the subject >
    From the article >
    Main Boards with no CPU power receptacle will supply 75 continuous watts
  • Main Boards with a 4 pin ATX12V CPU power receptacle can supply 155 continuous wattsMain Boards with an 8 pin EPS12V CPU power receptacle can supply 235 continuous wattsNOTE: The peek or maximum watts rating is much higher than the continuous watts rating.
     
    http://www.overclock.net/a/gpu-and-cpu-power-connections
     


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    bcavnaugh
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    Re: EVGA X99 Classified EPS 8 pin 2017/08/12 11:23:00 (permalink)
    All this for someone who is getting a new PSU to connect Both at a latter Time.
     
    baconinabun
    i see on the motherboard there is 2x8 pin 12v power connections, do both 8 pin need connected or can i get away with only one till i can pickup a new psu?

    Yes as stated in Post #2 above.
     
    MelonGx
    Did you even quote a right article?
    Page 7 Part 2 shows a motherboard which has only one EPS12V slot.
    What OP asked is whether connect both EPS12V slots or not.
    Theoretically only plugging one of them should be enough for low power consuming CPUs like non-overclocked 6850K.
    So I said better plug the 2nd when overclocking or using 12C+ E5.

    The OP has a 5960x CPU not a E5 v3/v4 CPU
    Page 7 Part 2 shows only the Primary Connector (PWR 8P1) The 2nd one or Optional connector is the (PWR 8P)
     
    post edited by bcavnaugh - 2017/08/12 11:40:05

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