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Title: The noobiest question ever.... Post by: ibrahim11 on February 01, 2014, 09:35:56 PM Hi, first of all... sorry if this is a noobie question, for some reason i just couldn't figure out what powers the molex on the powered 1x to 16x riser cables. Is it the mobo or the psu? Do I need to buy molex cables? Thanks :D
Title: Re: The noobiest question ever.... Post by: Stinky_Pete on February 01, 2014, 09:44:18 PM It's powered by the PSU. The whole point of having powered risers is to stop the motherboard burning up trying to supply to all those GPUs.
Some people argue that they shouldn't be necessary because the load on a PCI-e slot is defined in the specs, so boards should be up to that spec, and cards should not pull over that spec. Do you want to experiment to see if it's true? Title: Re: The noobiest question ever.... Post by: JaxonBTC on February 01, 2014, 09:45:12 PM PSU. You can power it from a Molex connector from the Psu or get a molex to SATA connector and use a SATA power cable from the PSU if you're running low on Molex connections.
Hope that helps. - Noob as well ;) Title: Re: The noobiest question ever.... Post by: ibrahim11 on February 01, 2014, 09:47:10 PM It's powered by the PSU. The whole point of having powered risers is to stop the motherboard burning up trying to supply to all those GPUs. Some people argue that they shouldn't be necessary because the load on a PCI-e slot is defined in the specs, so boards should be up to that spec, and cards should not pull over that spec. Do you want to experiment to see if it's true? So which slot/port do I put the molex cable in the psu? Do i need to buy cables? I have a corsiar rm750. Should I put it in pheriphals? http://www.corsair.com/us/media/catalog/product/cache/26/image/9df78eab33525d08d6e5fb8d27136e95/r/m/rm750_dc_side.png Title: Re: The noobiest question ever.... Post by: Stinky_Pete on February 01, 2014, 09:49:17 PM Its the ones labelled Peripheral. Read your PSU manual. If you bought a modular PSU like the one shown, you should have some suitable cables.
Title: Re: The noobiest question ever.... Post by: ibrahim11 on February 01, 2014, 09:49:50 PM Its the ones labelled Peripheral. Read your PSU manual. If you bought a modular PSU like the one shown, you should have some suitable cables. Which of these cables can i use? https://i.imgur.com/LK96Dan.png Title: Re: The noobiest question ever.... Post by: Stinky_Pete on February 01, 2014, 10:42:52 PM Your photograph doesn't really show the cables well. Probably you need 9 & 10.
You want the ones that have the 6-pin plug on one end that fits into the Peripheral sockets on the PSU, and they probably have a string of 3 or 4 Molex plugs on them. Title: Re: The noobiest question ever.... Post by: ibrahim11 on February 01, 2014, 10:44:05 PM Your photograph doesn't really show the cables well. I just checked now. I've found it. Thanks very much :DYou want the ones that have the 6-pin plug on one end that fits into the Peripheral sockets on the PSU, and they probably have a string of 3 or 4 Molex plugs on them. Title: Re: The noobiest question ever.... Post by: crazyates on February 02, 2014, 02:48:32 AM Hint: they're the only plugs that will actually fit.
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