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Showing 20 of 25 results by mantonio333
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Board Mining (Altcoins)
Re: EXPLOMOS M.2 Key M NGFF to PCI-E 4X Adapter Card
by
mantonio333
on 23/02/2021, 20:36:22 UTC
no

Thanks. Works w/o the molex fine!
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Topic
Board Mining (Altcoins)
Topic OP
EXPLOMOS M.2 Key M NGFF to PCI-E 4X Adapter Card
by
mantonio333
on 23/02/2021, 17:36:12 UTC
Just bought this:
https://www.amazon.com/EXPLOMOS-NGFF-Adapter-Power-Cable/dp/B074Z5YKXJ/ref=cm_cr_arp_d_product_top?ie=UTF8

Do I need to connect the 4-pin molex on the adapter if I'm using a GPU riser?
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Topic
Board Mining (Altcoins)
Re: Using 8pin to dual 8/6pin to power 3070
by
mantonio333
on 19/02/2021, 19:00:12 UTC

Thanks. Decided to get one of these rather than using the 6-pin. Better be extra cautious even with underclocking.
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Topic
Board Mining (Altcoins)
Re: Using 8pin to dual 8/6pin to power 3070
by
mantonio333
on 19/02/2021, 13:29:39 UTC
Just to be clear this is what I'm talking about.

8 Pin to PSU then 8 Pin to and 6 pin to GPU

https://ibb.co/3fbdRQg
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Topic
Board Mining (Altcoins)
Re: Using 8pin to dual 8/6pin to power 3070
by
mantonio333
on 19/02/2021, 13:10:40 UTC
You should be fine mate I am using a power supply with mine RTX 3070 over here and the power supply has just one connector with 6-pin and 8-pin plug maybe I should try to share a image of what I'm talking about maybe it's related to what you are telling us right now

https://i.imgur.com/xoZS5xf.png

Is that it? If YES it works fine

Is the wire with the green arrow a 6 pin? Not quite clear from the picture. But if it is then yes that's what I'm trying to do!
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Topic
Board Mining (Altcoins)
Re: Using 8pin to dual 8/6pin to power 3070
by
mantonio333
on 19/02/2021, 10:59:28 UTC
Anybody?
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Topic
Board Mining (Altcoins)
Topic OP
GPU Power Cable Question
by
mantonio333
on 18/02/2021, 22:22:56 UTC
I have an 8 pin to dual 6+2 pin VGA cable. Typically you would plug the 8-pin end to the PSU and plug the two 6+2 ends to the GPU (3070).

However I've ran out of 8 pin slots in my PSU and was wondering whether I can reverse the cable and plug one of the 6+2 ends on the psu using only the 6 pin and then connect the 8-pin to the GPU.

Will this be okay?
Post
Topic
Board Mining (Altcoins)
Re: Can't get all GPU's to work with Risers
by
mantonio333
on 16/02/2021, 03:49:13 UTC
Might not have enough power with only 850w. Have you tested all the risers?

Haven't switched around the risers I used for the Asus and EVGA gpus. Will switch it around tomorrow to see.
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Topic
Board Mining (Altcoins)
Re: Can't get all GPU's to work with Risers
by
mantonio333
on 16/02/2021, 03:41:49 UTC
You're a bit light on PSU....
220w x 4 = 880W without CPU, Mobo & Ram...

Try 3 cards and not 4 and see where it gets you!

I actually have another 850w PSU. My plan was to connect 3GPU + mobo on one psu and 4 GPU's on the second psu.

I tried with just 3 (switching the Asus and EVGA) but can't get it to work unless I put one of those cards directly on the mobo.
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Topic
Board Mining (Altcoins)
Topic OP
Can't get all GPU's to work with Risers
by
mantonio333
on 16/02/2021, 03:12:26 UTC
Here's my current setup:

PC
EVGA 850w G3
Asus ROG Strix Z370-E MOBO (16GB /  i5 8400)
OSHiveOS (latest version with latest nvidia drivers)

GPU's
Zotac Twin Edge3070
EVGA 3070 XC3 3070
Asus ROG Strix OC 3070
MSI Ventus 2x OC 3070

I can only get the Zotac and the MSI to work with the risers. When I connect the Asus and EVGA cards with the risers they are not detected by HiveOS. I've tried the following:

- Downloaded latest BIOS for motherboard
- Ensured 4G, VtD, Gen2 are all enabled in BIOS
- Downloaded latest HiveOS and Nvidia driver updates
- Switched around PCIE slots

Any suggestions on how I can get all four GPU's to work with the risers? I got the latest risers from www.gpurisers.com and connected via 4-pin molex.
Post
Topic
Board Mining (Altcoins)
Re: Connecting GPU's with and w/o Risers
by
mantonio333
on 08/02/2021, 16:05:30 UTC
I don't like the idea of using two power supply in a single mining rig, I'd rather go with big power supply or split the graphic cards and build two mining rigs instead of one, I just feel like it's more safer this way than using two power supply

Besides the phase issue, what else don't you like when using 2 psu's?
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Topic
Board Mining (Altcoins)
Re: Using risers with rtx 3070
by
mantonio333
on 08/02/2021, 14:57:39 UTC
Hello I'm building a rig and everything works when I mine without risers just with my GPUs in pci 16 slots in motherboard. But I am trying to expand and use risers. I tried sata adapters to 6 pin that come with risers and usb gets too hot, I tried using 6 plus 2 pin splitter connected to one of the 8 pin cables that powers gpu and usb got even hotter and bubbled. I did some research and people say that I need to use 8 gen risers and not 6 gen risers that I use. So I just ordered 8 gen risers that have sata upfront without any adapters, will those work? My psu only has 2 gpu slots which I already use, ready are sata, and 2 cpu 8 pins and 2 unmarked 8 pin slots. Does anyone have 3070 rig that uses risers and my type of psu? How do you power those risers?? Thanks a lot)

You really shouldn't be using SATA based risers as you're setting yourself up for a potential fire. SATA's power handling and gauge of cable isn't up to the task to supply enough power to the riser for it to perform at spec.

You should be using 6 Pin preferably as it supplies more than the 75W of power that the riser needs to perform.

Only use the 6Pin's on your risers and use the VGA 6+2Pin's for your GPU's!



Yup I got these risers which don't have sata. I'll be using 6 pin to power them:
https://gpurisers.com/product/preorder-gpurisers-com-newest-version-riser-6-pack-end-of-january-ship-date/
Post
Topic
Board Mining (Altcoins)
Re: Connecting GPU's with and w/o Risers
by
mantonio333
on 08/02/2021, 14:25:12 UTC
This might be a dumb question but...any issues connecting some GPU's directly on the motherboard and some using risers?

Most mining rigs I see in the internet either have all their gpu's connected on the motherboard or all via risers.

I'm planning to use Asus Z370-E for my rig.

You have to understand how a GPU is powered.
Some power come from the PCI-E slot (75W max on PCI-E 16x slot) and some power come from the 6/8 pins PCI-E connector(s) of the GPU.

The motherboard is compatible with SLI/Crossfire, so at least using 2 PCI-E slots directly is totally fine. Because it's design to give power simulteously to 2 GPU from the PCI-E slots.
If you want to use more GPU, you have to use powered risers (like USB risers) so the power draw that the GPU expect from the slot will not come through the motherboard (and it's a good thing, because it will not be able to safely provide so much power to 4-6 GPU on the slots).
The power will come from the risers with the molex or sata power cable directly from the PSU.

Do not use to much risers on 1 PSU cable.
For exemple, if you have 1 SATA cable from the PSU with 5 SATA plugs ... do not plug 5 risers, be cause it could stress this cable.
I prefer to have max 2 risers per cable on the PSU

Okay I see. I will have two separate 850w PSU's to power eight 3070. I'll make sure to distribute powering the risers between the two psu's. Thanks!


If you are planning to power 8x RTX3070 it will be wiser to buy power supplies with 1200watt capability because a single RTX3070 draws up to 117-120watts per gpu now do the math, that's 960 watts and motherboard and CPU will need some power too

I got two 850w psu's for a total of 1750w. That should be enough?
Post
Topic
Board Mining (Altcoins)
Re: Connecting GPU's with and w/o Risers
by
mantonio333
on 08/02/2021, 13:42:00 UTC
Hey,

if you are using dual power supplies do the following :
connect one GPU and its riser to power supply A until you have no more free slots.

Then go to power supply B , and connect each GPU and IT'S Riser to the same PSU!

Do not connect GPU_1 to PSU A and the riser of GPU_1 to PSU 2. Hope it's clear Cheesy

Got it thanks!
Post
Topic
Board Mining (Altcoins)
Re: Connecting GPU's with and w/o Risers
by
mantonio333
on 08/02/2021, 13:30:56 UTC
If you choose to use 2 PSU's then you need to make damn good and sure that you select a single PSU to power up both the riser and GPU. DO NOT mix the power sources on risers and GPU's or you can cause damage to your equipment and possibly start a fire!

So true ! Smiley
https://www.thegeekpub.com/11955/using-dual-power-supplies-mining/

The key is :
Everything you plug on the MB comes from one PSU (24 pin, CPU pin, molex etc ...)
Everything you plug for a GPU comes from one PSU (Riser power + 6/8 pins PCI-E connector to GPU)

So you will not mix the ground of the 2 PSU and everything will be fine  Smiley

Very useful article thank you! I was not aware that you couldn't mix and match psu connection with the GPU and mobo.

So basically I'll use the first psu for the mobo and 4 GPU/Risers. Then use the second psu isolated on the other 4 GPU/Riser pairs. This should be ok?
Post
Topic
Board Mining (Altcoins)
Re: Connecting GPU's with and w/o Risers
by
mantonio333
on 08/02/2021, 13:21:42 UTC
This might be a dumb question but...any issues connecting some GPU's directly on the motherboard and some using risers?

Most mining rigs I see in the internet either have all their gpu's connected on the motherboard or all via risers.

I'm planning to use Asus Z370-E for my rig.

You have to understand how a GPU is powered.
Some power come from the PCI-E slot (75W max on PCI-E 16x slot) and some power come from the 6/8 pins PCI-E connector(s) of the GPU.

The motherboard is compatible with SLI/Crossfire, so at least using 2 PCI-E slots directly is totally fine. Because it's design to give power simulteously to 2 GPU from the PCI-E slots.
If you want to use more GPU, you have to use powered risers (like USB risers) so the power draw that the GPU expect from the slot will not come through the motherboard (and it's a good thing, because it will not be able to safely provide so much power to 4-6 GPU on the slots).
The power will come from the risers with the molex or sata power cable directly from the PSU.

Do not use to much risers on 1 PSU cable.
For exemple, if you have 1 SATA cable from the PSU with 5 SATA plugs ... do not plug 5 risers, be cause it could stress this cable.
I prefer to have max 2 risers per cable on the PSU

Okay I see. I will have two separate 850w PSU's to power eight 3070. I'll make sure to distribute powering the risers between the two psu's. Thanks!



If you choose to use 2 PSU's then you need to make damn good and sure that you select a single PSU to power up both the riser and GPU. DO NOT mix the power sources on risers and GPU's or you can cause damage to your equipment and possibly start a fire!

Do you mean I need to make sure to connect each GPU/Riser pair on the same PSU each? For example, connect GPU/Riser 1-4 pairs on first PSU and connect GPU/Riser 5-8 pairs on second PSU?
Post
Topic
Board Mining (Altcoins)
Re: Connecting GPU's with and w/o Risers
by
mantonio333
on 07/02/2021, 23:38:21 UTC
This might be a dumb question but...any issues connecting some GPU's directly on the motherboard and some using risers?

Most mining rigs I see in the internet either have all their gpu's connected on the motherboard or all via risers.

I'm planning to use Asus Z370-E for my rig.

You have to understand how a GPU is powered.
Some power come from the PCI-E slot (75W max on PCI-E 16x slot) and some power come from the 6/8 pins PCI-E connector(s) of the GPU.

The motherboard is compatible with SLI/Crossfire, so at least using 2 PCI-E slots directly is totally fine. Because it's design to give power simulteously to 2 GPU from the PCI-E slots.
If you want to use more GPU, you have to use powered risers (like USB risers) so the power draw that the GPU expect from the slot will not come through the motherboard (and it's a good thing, because it will not be able to safely provide so much power to 4-6 GPU on the slots).
The power will come from the risers with the molex or sata power cable directly from the PSU.

Do not use to much risers on 1 PSU cable.
For exemple, if you have 1 SATA cable from the PSU with 5 SATA plugs ... do not plug 5 risers, be cause it could stress this cable.
I prefer to have max 2 risers per cable on the PSU

Okay I see. I will have two separate 850w PSU's to power eight 3070. I'll make sure to distribute powering the risers between the two psu's. Thanks!

Post
Topic
Board Mining (Altcoins)
Re: Connecting GPU's with and w/o Risers
by
mantonio333
on 07/02/2021, 21:51:02 UTC
try to keep those on the motherboard to a minimum.  1 or 2 shouldnt be a problem.  but air flow and power draw are concerns.  Be sure to plug in any supplimental power.  Some boards have an 8 pin cpu + another 4 or 8pin cpu or 4 pin molex at either or both ends of the slots.  Some even have 6pin pcie plugs like gpus and risers take. 


But whatever you plug directly in the motherboard will be pulling power through the traces of the board.  Its why most rigs are built with risers...that and airflow airlow airlow.


Got it thanks!

I was only planning to plug in one GPU. The rest will be on risers.
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Topic
Board Mining (Altcoins)
Topic OP
Connecting GPU's with and w/o Risers
by
mantonio333
on 07/02/2021, 21:05:48 UTC
This might be a dumb question but...any issues connecting some GPU's directly on the motherboard and some using risers?

Most mining rigs I see in the internet either have all their gpu's connected on the motherboard or all via risers.

I'm planning to use Asus Z370-E for my rig.