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powered or non-powered risers

HemilTV
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building an ltc rig and these are the parts. I want to know A) Do i get powered or non-powered risers B) Where do i get the risers as I'm in the UK

Parts List:

 

Intel G1820 ASRock H81 Pro BTC 

Kingston 4GB Value RAM

Gigabyte R9 280x (3 of them)

Sandisk 64GB SSD 
Corsair RM1000

 

Thank you.

 

 

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I would go with non-powered.

Main rig on profile

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Just for reference, I presume if the motherboard doesn't have molex connectors, you need powered risers?

 

More or less yes.

 

The molex/additional power connectors on the motherboard provide auxiliary power to the pci slots. This balances the load so they don't pull too much from the 24pin and cause it to short out.

With 3 GPU's you should be fine on most nearly all motherboards without powered risers. Once you move into 4+ you want to use powered risers or have the additional power via molex directly on the motherboard.

 

Always check the motherboards manual for details on how many cards it supports. THis will give you an idea if you need to use powered risers or not.

You keep using that word. I do not think it means what you think it means.
Users cannot, and will not securely manage key material. Most users can't and the ones that can, wont.

Ask me about Bitcoin, Litecoin, Crypto-Currencies, and/or Mining them.

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I have heard of powered risers catching fire, especially cheap Chinese ones.

 

Always check the wiring with at the very least a visual inspection. Defects happen in any industry; The amount of risers out there compared to the few reports of failure/damage is small amount by industry standards. There are more instances of people burning out their motherboard because they didn't use powered risers when they should have.

 

Depending how paranoid you are, run through it with a multimeter to ensure there are no bridges or issues. 

 

You could always look into creating your own powered risers from the non powered. http://blog.zorinaq.com/?e=44

You keep using that word. I do not think it means what you think it means.
Users cannot, and will not securely manage key material. Most users can't and the ones that can, wont.

Ask me about Bitcoin, Litecoin, Crypto-Currencies, and/or Mining them.

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I ordered 2 H81 Pro motherboards from NCIX last month for 12 cards so I don't need powered risers.

 

 

 

 

It should be fine, you could always get two powered risers so each motherboard is only running 5 GPU's with PCI power draw. But running 6 on each shouldn't be a problem without powered risers. The board does have additional power to balance the pci load.

I haven't used that motherboard nor looked into the motherboard greatly, so I can't say for certain.

You can always look up others who are running the same set up.

You keep using that word. I do not think it means what you think it means.
Users cannot, and will not securely manage key material. Most users can't and the ones that can, wont.

Ask me about Bitcoin, Litecoin, Crypto-Currencies, and/or Mining them.

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