Any 8-pin powered risers you would recommend?

Bigdrago

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Quote from: [YAZ] on January 11, 2018, 07:04:18 AM

Quote from: Bigdrago on January 11, 2018, 06:24:20 AM

Where do you read that the riser is only powered by 2x12v?
Isnt 8pin 150w and 6pin75 ?

That product only powered by 2 yellow cables, and I didn't see clearly that the black jumper cable come from the 2 yellow cable. The 8 pin adaptor has four 12 volt lines.

Thanks, think I will stick to 6pin risers then. Trying to find some good 8pin to dual 6pin cables, and someone longer than 25 cm

[YAZ]

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Quote from: Bigdrago on January 11, 2018, 06:24:20 AM

Where do you read that the riser is only powered by 2x12v?
Isnt 8pin 150w and 6pin75 ?

That product only powered by 2 yellow cables, and I didn't see clearly that the black jumper cable come from the 2 yellow cable. The 8 pin adaptor has four 12 volt lines.

Bigdrago

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Quote from: [YAZ] on January 10, 2018, 07:49:24 PM

Quote from: Branko on January 10, 2018, 05:01:43 PM

8 pin is 150W, 6 pin is 75W, but since only 75W can go through PCI-E slot, whats the purpose?

That riser only powered by 2 x 12V and the other is ground, so will not produce 150 watts.

Where do you read that the riser is only powered by 2x12v?
Isnt 8pin 150w and 6pin75 ?

Undefined31415

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Gone phishing...

Quote from: Bigdrago on January 10, 2018, 05:29:07 PM

Quote from: Undefined31415 on January 10, 2018, 05:05:58 PM

Can you not swap PSU connectors around such that you can use 6(+2) connectors for the more-typical 6-pin risers? Otherwise, you can get 8-pin to 6-pin adapters if your PSU doesn't offer that sort of flexibility (which I would be surprised if it doesn't).

8-pin connectors are unnecessary for risers, although some may choose to manufacture them. If a card is pulling significantly more than 75W through the riser (some cards have been recorded pulling 80-90W through the slot, in some cases; 6-pin PCIe connectors can handle being pushed over-spec, but it's not ideal), there's something wrong with the card or the manufacturer.

The spec is 75W; supplementary onboard power connectors on the cards are supposed to ensure cards don't pull more than 75W through the slot. This helps prevent damage to the motherboard, or in our case, also to risers.

Since 8pin can handle more power I want to use 8pin. 8pin (150w) from psu to power 2x 8pin risers. (75w + 75w)
Thanks for all the inputs.

If your cards are drawing enough power through the slot to significantly exceed 75W and truly need 8-pin power connectors, you'll run into other problems.

6-pin power works fine. Use 8-pin ones at your own inconvenience.

[YAZ]

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Quote from: Branko on January 10, 2018, 05:01:43 PM

8 pin is 150W, 6 pin is 75W, but since only 75W can go through PCI-E slot, whats the purpose?

That riser only powered by 2 x 12V and the other is ground, so will not produce 150 watts.

Quote from: Branko on January 10, 2018, 05:01:43 PM

8 pin is 150W, 6 pin is 75W, but since only 75W can go through PCI-E slot, whats the purpose?

75 watts if we are using PCIe 16X, 25 watts for A full-sized PCIe 1X. This is good for a motherboard with no additional graphics power on it.

Bigdrago

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Quote from: Undefined31415 on January 10, 2018, 05:05:58 PM

Can you not swap PSU connectors around such that you can use 6(+2) connectors for the more-typical 6-pin risers? Otherwise, you can get 8-pin to 6-pin adapters if your PSU doesn't offer that sort of flexibility (which I would be surprised if it doesn't).

8-pin connectors are unnecessary for risers, although some may choose to manufacture them. If a card is pulling significantly more than 75W through the riser (some cards have been recorded pulling 80-90W through the slot, in some cases; 6-pin PCIe connectors can handle being pushed over-spec, but it's not ideal), there's something wrong with the card or the manufacturer.

The spec is 75W; supplementary onboard power connectors on the cards are supposed to ensure cards don't pull more than 75W through the slot. This helps prevent damage to the motherboard, or in our case, also to risers.

Since 8pin can handle more power I want to use 8pin. 8pin (150w) from psu to power 2x 8pin risers. (75w + 75w)
Thanks for all the inputs.

Undefined31415

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Activity: 336

Merit: 253

Gone phishing...

Can you not swap PSU connectors around such that you can use 6(+2) connectors for the more-typical 6-pin risers? Otherwise, you can get 8-pin to 6-pin adapters if your PSU doesn't offer that sort of flexibility (which I would be surprised if it doesn't).

8-pin connectors are unnecessary for risers, although some may choose to manufacture them. If a card is pulling significantly more than 75W through the riser (some cards have been recorded pulling 80-90W through the slot, in some cases; 6-pin PCIe connectors can handle being pushed over-spec, but it's not ideal), there's something wrong with the card or the manufacturer.

The spec is 75W; supplementary onboard power connectors on the cards are supposed to ensure cards don't pull more than 75W through the slot. This helps prevent damage to the motherboard, or in our case, also to risers.

Branko

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8 pin is 150W, 6 pin is 75W, but since only 75W can go through PCI-E slot, whats the purpose?

gt_addict

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Have you tried plugging the 8pin into a 6pin. As far as i know the pinout is the same apart from the two extra GND leads. So you can have the two GND connections not connected and the other 6pins plugged in. See the diagram in this forum thread, the connector shape is the same:-

http://www.overclock.net/t/1427564/need-seasonic-x-series-pci-e-pin-diagram

Bigdrago

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The one from cryptomined is the newest version. Ver 010 ?

Bimmber

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First time I have ever seen riser with 8 pins Shocked

Bigdrago

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https://www.aliexpress.com/item/USB-3-0-PCI-E-Riser-Express-1X-4x-8x-16x-Extender-Riser-Adapter-Card-SATA/32832219732.html?spm=2114.search0104.3.1.w8ts0x&ws_ab_test=searchweb0_0,searchweb201602_2_10152_10065_10151_10344_10068_10342_10343_10059_10340_10314_10341_10534_100031_10084_10604_10083_10103_10613_10307_10615_10614_10142,searchweb201603_25,ppcSwitch_5&algo_expid=7b5bd2f1-c3db-4820-b776-c1a43551456c-0&algo_pvid=7b5bd2f1-c3db-4820-b776-c1a43551456c&transAbTest=ae803_4&priceBeautifyAB=0

https://cryptomined.com/index.php?main_page=product_info&cPath=1_372_331&products_id=330&zenid=4oa0su5gltqhiajo8c4stimst5

Bimmber

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They don`t exist and you don`t need 8 pin riser, its actually 6 pins, other 2 pins just signal that more power can be used. Get 8 pin to 6 pin cable and you are good.

Bigdrago

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Hi.
I have some spare slots on my psu (evga g2 1600w). I want to power the risers from vga port on psu (8-pin). The 8-pin is supposed to be splitted to 8-pin to 2x 8-pin.

So. Are there any good powered risers out there with 8-pin connection? I see a lot of sata and 4pin

Topic: Any 8-pin powered risers you would recommend? (Read 263 times)