Riser Card Wiring | Bitcointalksearch.org

jillscarbrough

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Quote from: adaseb on February 08, 2018, 02:50:01 AM

The wire melting issues that most people encountered in the past wasn't because people ran more than 2-3 risers off a SATA chain it was the cheap bad quality SATA to molex adapter included with the risers that melted on the SATA side.

Yes, absolute agree in melted cable case. It depends on cable quality since there is no Wattage for each cable only Max Voltage and Current. If you read carefully what I say before, my point is How to powering Riser with the same condition when we mounting cards direct to mobos.

When we mounting a card directly to Pciex16 on mobos, that socket will produce Max 75W. So, a Riser powered by Molex or 6 Pins will give the same condition. that what I mean with safer.

adaseb

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Quote from: jillscarbrough on February 07, 2018, 10:23:23 PM

Quote from: fanatic26 on February 07, 2018, 06:57:58 PM

I have 8000 cards running off of sata risers. They work just fine, the problem is people dont understand how electricity works........

This is about safer, not about right or wrong. All of GPUs need to mounted to PCIe 16x that can produce max 75 Watt (on mobo). When we are using "powered riser", we need to make sure that riser will produce the same wattage (max 75 Watt). So we need to make the same condition on it. Since SATA can only produce max 55 Watt (depends on wire rating) and Molex can produce max 75 Watt, so safer using Molex or 6 pins for powering Riser.

I also using SATA connector in a few riser, I think PCIe 1x to USB in riser will produce same as PCIe 1x socket on Mobos (25 Watt max), but I never try to measure it. That's why people said safer using MOLEX or 6 pins than SATA.

The wire melting issues that most people encountered in the past wasn't because people ran more than 2-3 risers off a SATA chain it was the cheap bad quality SATA to molex adapter included with the risers that melted on the SATA side.

jillscarbrough

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Quote from: fanatic26 on February 07, 2018, 06:57:58 PM

I have 8000 cards running off of sata risers. They work just fine, the problem is people dont understand how electricity works........

This is about safer, not about right or wrong. All of GPUs need to mounted to PCIe 16x that can produce max 75 Watt (on mobo). When we are using "powered riser", we need to make sure that riser will produce the same wattage (max 75 Watt). So we need to make the same condition on it. Since SATA can only produce max 55 Watt (depends on wire rating) and Molex can produce max 75 Watt, so safer using Molex or 6 pins for powering Riser.

I also using SATA connector in a few riser, I think PCIe 1x to USB in riser will produce same as PCIe 1x socket on Mobos (25 Watt max), but I never try to measure it. That's why people said safer using MOLEX or 6 pins than SATA.

fanatic26

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I have 8000 cards running off of sata risers. They work just fine, the problem is people dont understand how electricity works. You cant run 3-4 risers off of a single sata chain, you are trying to draw hundreds of watts over a single 18 AWG strand of wire. If you set shit up properly, you wont have problems. Anyone that says they have burned up a bunch of wires, dont trust what they say because they are doing it wrong.

drawingthemoon

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Soldering is not a good solution for long term. I was thinking the same and talked to a few guys with experience.
The final resault was that all of them said dont solder directly to riser ord PSU. There are always micro vibrations and soldering will broke in longterm.

For Riser I think molex are much better than SATA or other. I go directly from MOLEX of my PSU to MOLEX on the riser never had issues after 6 month.

pimpin

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Quote from: gt_addict on February 04, 2018, 03:23:29 AM

Dude just buy more risers with the correct connection in the first place. Dont go stripping connectors off and soldering wires on. Thats a great way to increase the risk of something going wrong.

Cheers. Done.

gt_addict

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Dude just buy more risers with the correct connection in the first place. Dont go stripping connectors off and soldering wires on. Thats a great way to increase the risk of something going wrong.

pimpin

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Quote from: dmwardjr on February 04, 2018, 12:24:00 AM

I think you need to research. Is this what you're referring to on Amazon? https://www.amazon.com/s/ref=nb_sb_ss_i_2_16?url=search-alias%3Delectronics&field-keywords=usb+riser+6+pin&sprefix=USB+6+pin+risers%2Celectronics%2C159&crid=TQW6Z0I76I2X

That link is a LIST of USB riser 6 pin. Simply take off the SATA to 6-pin extension cables and use your 6-pin cables from your server PSU to power the risers.

Naw unfortunately not. The ones that came with the cards has a 15 pin SATA power male plug on the board itself Much like the PCIE boards there are three posts coming out the back of the SATA plug on the board. I'm thinking i may be able to solder the wires directly to these post. The other end of the wires would be the PCIE connector which would plug into the breakout board on the PSU.

dmwardjr

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I think you need to research. Is this what you're referring to on Amazon? https://www.amazon.com/s/ref=nb_sb_ss_i_2_16?url=search-alias%3Delectronics&field-keywords=usb+riser+6+pin&sprefix=USB+6+pin+risers%2Celectronics%2C159&crid=TQW6Z0I76I2X

That link is a LIST of USB riser 6 pin. Simply take off the SATA to 6-pin extension cables and use your 6-pin cables from your server PSU to power the risers.

CryptoWatcher420

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man you gotta think outside the box

pimpin

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Has anyone tried to wire a 6 pin PCIE cable directly to a riser card rather than use molex or sata connectors? I ask as I have several risers with male sata plugs and I want to use a Delta PSU with a PCIE breakout board. I can't seem to find 6 pin pcie to sata power female connectors. I hear the sata connectors are a fire hazard anyway. So I'm thinking of a hard wired solution. Cheers.

Topic: Riser Card Wiring (Read 260 times)