# PSU Wattage Problem? Enough power?

**URL:** <https://forum.zcashcommunity.com/t/psu-wattage-problem-enough-power/24986>\
**Category:** Mining\
**Created:** [December 27, 2017, 11:31pm UTC](https://forum.zcashcommunity.com/t/psu-wattage-problem-enough-power/24986 "2017-12-27T23:31:15Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JohnP](https://avatars.discourse-cdn.com/v4/letter/j/db5fbb/32.png) [@JohnP](https://forum.zcashcommunity.com/u/JohnP)\
**Post date:** [December 27, 2017, 11:31pm UTC](https://forum.zcashcommunity.com/t/psu-wattage-problem-enough-power/24986/1 "2017-12-27T23:31:15Z")

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So, hello:)  
I bought some stuff for a Mining Rig. I have 4x 1070ti, 1x 1080ti and 1x 1060. My question/Problem is that i only bought an 1000 Watt PSU. Is IT possible to run my 6 GPUs on that? I mean i would optimize them to 80% GPU usage But overclock core and memory. Thanks for all your suggestions!! Thanks for your time!!

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**Author:** ![CitricAcid](https://avatars.discourse-cdn.com/v4/letter/c/cc9497/32.png) [@CitricAcid](https://forum.zcashcommunity.com/u/CitricAcid)\
**Post date:** [December 28, 2017, 6:35am UTC](https://forum.zcashcommunity.com/t/psu-wattage-problem-enough-power/24986/2 "2017-12-28T06:35:29Z")

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> [@JohnP](#):
>
> I mean i would optimize them to 80% GPU usage But overclock core and memory.

@ 80% power usage…  
how many vga power plug-ins does it have… there is your first issue

Then the 1080ti, is it a 8+8 pin or a 8+6 pin  
are the 1070ti’s single 8 or 6 pin or 8+6pin or 6+6 pin

Do you have enough cables?

And no a 1000w PSU running 80% power on the GPU’s is not enough  
You would need a 1600w PSU

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<div class="post-metadata">

**Author:** ![JohnP](https://avatars.discourse-cdn.com/v4/letter/j/db5fbb/32.png) [@JohnP](https://forum.zcashcommunity.com/u/JohnP)\
**Post date:** [December 28, 2017, 10:23am UTC](https://forum.zcashcommunity.com/t/psu-wattage-problem-enough-power/24986/3 "2017-12-28T10:23:07Z")

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First of all, thanks for your answer!

So my PSU has enough cables. But i guess i’ll have to buy another PSU:slight\_smile:

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**Author:** ![CanGuitarGuy](https://avatars.discourse-cdn.com/v4/letter/c/8c91f0/32.png) [@CanGuitarGuy](https://forum.zcashcommunity.com/u/CanGuitarGuy)\
**Post date:** [December 29, 2017, 4:04pm UTC](https://forum.zcashcommunity.com/t/psu-wattage-problem-enough-power/24986/4 "2017-12-29T16:04:10Z")

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Might consider buying a second PSU and using something like Add2PSU to chain them together. 1600W gets very expensive.