PSU and GPU question | Bitcointalksearch.org

Dhodge87

newbie

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Quote from: Dlugina23 on August 21, 2017, 12:45:25 AM

What is the reason ?

I'm trying to avoid using a third PSU because I lack enough plugs/cables especially when I'm only using 60% of the wattage.
My second EVGA platinum PSU had 2 unused CPU ports, if those are a viable option to power my GTX cards then I'd rather use those instead of trying to run 3 PSU's.

From what I've read the CPU ports have more than enough power to run 2 GTX cards each, that'll put me at 8 cards on this PSU with 5 on the other maxing me out at 13. On top of that I'll be at about 80% usage.

Dlugina23

sr. member

Activity: 504

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What is the reason ?

philipma1957

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'The right to privacy matters'

Quote from: Dhodge87 on August 20, 2017, 11:17:30 PM

Quote from: philipma1957 on August 20, 2017, 10:37:48 PM

went to buy it at amazon can't and reviews show sometimes it is wired backwards

https://www.amazon.com/Thermaltake-8-Pin-2-Pin-Splitter-AC-006-CNONAN-P1/product-reviews/B00O0M6WIS

so I would be very careful about using it. I can't find it to review it.

but if I found it I would test it with a meter before i use it.

I just read the reviews, it looks like there are 2 versions. One before 2015 that is basically a Y splitter and one from 2016 onward that is an actual adaptor.

I may buy one of the $2 cables on eBay and give it a shot with my multimeter, then test it on an older PSU and GPU.

yeah multimeter is a must. as you do not want to attach it to a pcie cable coming from the psu. pop since it would adapt and split if it was built for a cpu cable.

but I can see where a good one would be nice for evga since most evga are 1 rail 12 volt and have 2 cpu plugs.

Dhodge87

newbie

Activity: 57

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Quote from: philipma1957 on August 20, 2017, 10:37:48 PM

went to buy it at amazon can't and reviews show sometimes it is wired backwards

https://www.amazon.com/Thermaltake-8-Pin-2-Pin-Splitter-AC-006-CNONAN-P1/product-reviews/B00O0M6WIS

so I would be very careful about using it. I can't find it to review it.

but if I found it I would test it with a meter before i use it.

I just read the reviews, it looks like there are 2 versions. One before 2015 that is basically a Y splitter and one from 2016 onward that is an actual adaptor.

I may buy one of the $2 cables on eBay and give it a shot with my multimeter, then test it on an older PSU and GPU.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

went to buy it at amazon can't and reviews show sometimes it is wired backwards

https://www.amazon.com/Thermaltake-8-Pin-2-Pin-Splitter-AC-006-CNONAN-P1/product-reviews/B00O0M6WIS

so I would be very careful about using it. I can't find it to review it.

but if I found it I would test it with a meter before i use it.

Dhodge87

newbie

Activity: 57

Merit: 0

Quote from: philipma1957 on August 20, 2017, 10:24:53 PM

Quote from: Dhodge87 on August 20, 2017, 08:16:29 PM

Quote from: philipma1957 on August 20, 2017, 07:15:54 PM

Quote from: Dhodge87 on August 20, 2017, 06:54:11 PM

Dunno where else to ask this.

I was wondering is it possible to power a GPU such as a gtx 1060 from the PSU's CPU cable?
I saw that a CPU 8pin to vga 6+2 pin exists, but will it draw to much power?

https://i.imgur.com/yxVSIrX.jpg

Of course it works assuming you get the neg and pos correct .

Your photo has no info on a special cable. So you better understand how to be sure your wires don't cross

That is just the stock PSU pic.
The cables appear to be all over.

Here is where I first saw it
http://www.thermaltake.com/Power_Supply/Accessories_/PSU_Cable/C_00002413/CPU_8Pin_to_Dual_PCI_E_6_2Pin_Splitter_Cable/design.htm

Here's one on eBay.
https://www.ebay.com/itm/272720358725

I'm also debating about using a server PSU such as the dps-1200 as the second in my next build, but my concern is how do I sync it to the first PSU?

I don't have a problem redoing the pins if I have to.
Where would I find the pin lawout?
I suppose I could strip the sleeve from the Evga cables and match them accordingly.

the thermal take cable looks good. in fact I am going to order and test it for you

http://www.thermaltake.com/db/products/PSU_Cable/CPU_8Pin_to_Dual_PCI-E%206+2Pin_Splitter_Cable/main.jpg

http://www.thermaltake.com/db/products/PSU_Cable/CPU_8Pin_to_Dual_PCI-E%206+2Pin_Splitter_Cable/pic1.jpg

Well then I'll wait for your results!!

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: Dhodge87 on August 20, 2017, 08:16:29 PM

Quote from: philipma1957 on August 20, 2017, 07:15:54 PM

Quote from: Dhodge87 on August 20, 2017, 06:54:11 PM

Dunno where else to ask this.

I was wondering is it possible to power a GPU such as a gtx 1060 from the PSU's CPU cable?
I saw that a CPU 8pin to vga 6+2 pin exists, but will it draw to much power?

Of course it works assuming you get the neg and pos correct .

Your photo has no info on a special cable. So you better understand how to be sure your wires don't cross

That is just the stock PSU pic.
The cables appear to be all over.

Here is where I first saw it
http://www.thermaltake.com/Power_Supply/Accessories_/PSU_Cable/C_00002413/CPU_8Pin_to_Dual_PCI_E_6_2Pin_Splitter_Cable/design.htm

Here's one on eBay.
https://www.ebay.com/itm/272720358725

I'm also debating about using a server PSU such as the dps-1200 as the second in my next build, but my concern is how do I sync it to the first PSU?

I don't have a problem redoing the pins if I have to.
Where would I find the pin lawout?
I suppose I could strip the sleeve from the Evga cables and match them accordingly.

the thermal take cable looks good. in fact I am going to order and test it for you

voltartist

newbie

Activity: 6

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CPU plug is rated for 225W, VGA 6+2 pin is rated for 150W.

CaVO32

full member

Activity: 1848

Merit: 158

simply check your pinouts of both the cpu and the gpu cable and also the pinouts of the psu if all is identical then i would presume you could do that with no issue other then the fact that the cpu might be on a separate rail and could be a lower power exit then a normal pcie output

Dhodge87

newbie

Activity: 57

Merit: 0

Quote from: philipma1957 on August 20, 2017, 07:15:54 PM

Quote from: Dhodge87 on August 20, 2017, 06:54:11 PM

Dunno where else to ask this.

I was wondering is it possible to power a GPU such as a gtx 1060 from the PSU's CPU cable?
I saw that a CPU 8pin to vga 6+2 pin exists, but will it draw to much power?

https://i.imgur.com/yxVSIrX.jpg

Of course it works assuming you get the neg and pos correct .

Your photo has no info on a special cable. So you better understand how to be sure your wires don't cross

That is just the stock PSU pic.
The cables appear to be all over.

Here is where I first saw it
http://www.thermaltake.com/Power_Supply/Accessories_/PSU_Cable/C_00002413/CPU_8Pin_to_Dual_PCI_E_6_2Pin_Splitter_Cable/design.htm

Here's one on eBay.
https://www.ebay.com/itm/272720358725

I'm also debating about using a server PSU such as the dps-1200 as the second in my next build, but my concern is how do I sync it to the first PSU?

I don't have a problem redoing the pins if I have to.
Where would I find the pin lawout?
I suppose I could strip the sleeve from the Evga cables and match them accordingly.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: Dhodge87 on August 20, 2017, 06:54:11 PM

Dunno where else to ask this.

I was wondering is it possible to power a GPU such as a gtx 1060 from the PSU's CPU cable?
I saw that a CPU 8pin to vga 6+2 pin exists, but will it draw to much power?

Of course it works assuming you get the neg and pos correct .

Your photo has no info on a special cable. So you better understand how to be sure your wires don't cross

Dhodge87

newbie

Activity: 57

Merit: 0

Dunno where else to ask this.

I was wondering is it possible to power a GPU such as a gtx 1060 from the PSU's CPU cable?
I saw that a CPU 8pin to vga 6+2 pin exists, but will it draw to much power?
http://www.thermaltake.com/Power_Supply/Accessories_/PSU_Cable/C_00002413/CPU_8Pin_to_Dual_PCI_E_6_2Pin_Splitter_Cable/design.htm

https://i.imgur.com/yxVSIrX.jpg

Topic: PSU and GPU question (Read 451 times)