Has anyone tried running 2 GPUs installed on the board?

Rabinovitch

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A humble Siberian miner

Quote from: pzycho010 on May 15, 2017, 10:16:31 AM

I know most setups for 2 or more GPUs were via riser. Just curious if anyone tried installing 2 GPUs onboard instead of risers.
What motherboard do you recommend that can accomplish this?

I still have a mini-rig with two Gigabyte R9 290s (reference design) installed on motherboard (ASRock Z87 Pro4). This setup is working in mining since January, 2014 (Sic!).

MA3A

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To Hash or not to Hash, that's what the question

Quote

It's a 6 pin Wink. Still doubt that will be enough.

- well, manufacturer certainly tested this design before putting in to a mass production, so must be enough. Questions are:

1- how cool they will run
2- how loud they will be

Jamievs

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Quote from: dbc23 on May 16, 2017, 12:42:55 PM

I'd think Katanas are LOUD, plus good luck even buying 6 of them right now. That board looks NICE, but i'm not certain if it has enough juice for the PCI lanes, it looks like it has a supplemental power connector for them, but only a single 4-pin.

I'm thinking about switching to Intel for my next rig build, since I've been doing everything with AMD so far, might give it a shot.

It's a 6 pin Wink

. Still doubt that will be enough.

dbc23

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I'd think Katanas are LOUD, plus good luck even buying 6 of them right now. That board looks NICE, but i'm not certain if it has enough juice for the PCI lanes, it looks like it has a supplemental power connector for them, but only a single 4-pin.

I'm thinking about switching to Intel for my next rig build, since I've been doing everything with AMD so far, might give it a shot.

MA3A

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To Hash or not to Hash, that's what the question

Katanas are nice, but what about noise? I bet that turbofan will be like F1 engine... and this MSI MARSHALL mobo is quite a thing, i must admit. How much are those katanas?

PanneKopp

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aka ...

Hi @Vaccinus ,

Quote from: Vaccinus on May 16, 2017, 11:05:12 AM

Quote from: Batelk on May 16, 2017, 02:13:36 AM

Quote from: Vaccinus on May 16, 2017, 01:56:09 AM

is the cooling for that katana gpu good? i see that with only one fan they are not good at cooling anyway so you are saving because of space but you lose because of 1 single fan, i also wanted to have a motherboard with 6 pcie x 16 slot and more space between gpu, so i don't need risers, maybe they will make those in the future

Some customer motherboard have 8x 16 PCIE slots.

ah i see but there will be not enough space to put all the gpu with same space between each right? would be a problem for the temperature

i found this one which seems good, but they cost too much

what´s the Part-Number an Chipset of this ?

Would be nice, if it could run 8 x GTX 1070 Katana - but I doubt, the Chipset an Windowz will support it ^^

http://www.kfa2.com/kfa2/graphics-card/kfa2-geforcer-gtx-1070-katana.html

Grin

Pannekopp

Vaccinus

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Quote from: Batelk on May 16, 2017, 02:13:36 AM

Quote from: Vaccinus on May 16, 2017, 01:56:09 AM

is the cooling for that katana gpu good? i see that with only one fan they are not good at cooling anyway so you are saving because of space but you lose because of 1 single fan, i also wanted to have a motherboard with 6 pcie x 16 slot and more space between gpu, so i don't need risers, maybe they will make those in the future

Some customer motherboard have 8x 16 PCIE slots.

ah i see but there will be not enough space to put all the gpu with same space between each right? would be a problem for the temperature

i found this one which seems good, but they cost too much

Batelk

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Quote from: Vaccinus on May 16, 2017, 01:56:09 AM

is the cooling for that katana gpu good? i see that with only one fan they are not good at cooling anyway so you are saving because of space but you lose because of 1 single fan, i also wanted to have a motherboard with 6 pcie x 16 slot and more space between gpu, so i don't need risers, maybe they will make those in the future

Some customer motherboard have 8x 16 PCIE slots.

Vaccinus

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is the cooling for that katana gpu good? i see that with only one fan they are not good at cooling anyway so you are saving because of space but you lose because of 1 single fan, i also wanted to have a motherboard with 6 pcie x 16 slot and more space between gpu, so i don't need risers, maybe they will make those in the future

philipma1957

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Quote from: QuintLeo on May 15, 2017, 07:36:30 PM

My rigs are mostly 3-card rigs with no risers - it would be nice if MB makers would make 3 x 16x slot motherboards with the 16x slots at a 1-4-7 spacing instead of the 2-5-7 COMMON spacing as that limits cooling to the middle card, but it can be worked around using a "short" card in the #7 slot position like Gigabyte's "ITX" 1070 model.

There are motherboards that allow for 1-4-7 spacing on cards but ALL of them are 4+ 16x slot (most are 5+ 16x slot) and VERY VERY expen$ive and many of them are no longer being made.

yep.. all of the above is why I got interested in the galax katana 1070

1 slot card appears to be a perfect match for the biostar z170

Since I have like 8 bioster z170's I think I can finally build a 4 card case build

with

katana-katana-katana-katana or
katana-katana-katana- 1080 ti Founders edition.

I have finally exchanged messages with some galax usa people and they may send me a third and fourth card to showcase the build.

Fingers crossed as it would be a nice machine. in this case

https://www.newegg.com/Product/Product.aspx?Item=N82E16811147232

this mobo

https://www.newegg.com/Product/Product.aspx?Item=N82E16813138421

QuintLeo

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My rigs are mostly 3-card rigs with no risers - it would be nice if MB makers would make 3 x 16x slot motherboards with the 16x slots at a 1-4-7 spacing instead of the 2-5-7 COMMON spacing as that limits cooling to the middle card, but it can be worked around using a "short" card in the #7 slot position like Gigabyte's "ITX" 1070 model.

There are motherboards that allow for 1-4-7 spacing on cards but ALL of them are 4+ 16x slot (most are 5+ 16x slot) and VERY VERY expen$ive and many of them are no longer being made.

RentGPU

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It's the best way and the most stable to install your cards onboard , i have all my setups as 2x onboard and a very cheap board can do it , you need a big place and cheap mobos and cpus ,rams , i have reached roi on most of them without problems or raiser headachs

philipma1957

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'The right to privacy matters'

Quote from: vm1990 on May 15, 2017, 05:13:44 PM

Quote from: philipma1957 on May 15, 2017, 05:08:35 PM

this is a great board for 2 in slots

https://www.newegg.com/Product/Product.aspx?Item=N82E16813145007

it also allows you to add 1 riser for 3

or do 1 slot and 3 risers for 4

anyone looking to start gpu mining should start here.

I would argue 3 of these doing 12 cards could be smarter then 2 six card rigs.

once you go bigger then that 12 card rigs make sense

here is another really good board

you can use up to six with a mix or slots and risers

https://www.amazon.com/gp/product/B01N2V0AHI/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

id suggest at the price of raisers just adding all the cards to raisers and keeping them all nice and far apart just to keep them cool and cut costs that way.

not on the six card one use 2 slots and 4 risers plenty of spacing and a more narrow rack.

I am not anti six card the way you say. depends on what the miner wants to do.

vm1990

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Quote from: philipma1957 on May 15, 2017, 05:08:35 PM

this is a great board for 2 in slots

https://www.newegg.com/Product/Product.aspx?Item=N82E16813145007

it also allows you to add 1 riser for 3

or do 1 slot and 3 risers for 4

anyone looking to start gpu mining should start here.

I would argue 3 of these doing 12 cards could be smarter then 2 six card rigs.

once you go bigger then that 12 card rigs make sense

here is another really good board

you can use up to six with a mix or slots and risers

https://www.amazon.com/gp/product/B01N2V0AHI/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

id suggest at the price of raisers just adding all the cards to raisers and keeping them all nice and far apart just to keep them cool and cut costs that way.

philipma1957

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'The right to privacy matters'

this is a great board for 2 in slots

https://www.newegg.com/Product/Product.aspx?Item=N82E16813145007

it also allows you to add 1 riser for 3

or do 1 slot and 3 risers for 4

anyone looking to start gpu mining should start here.

I would argue 3 of these doing 12 cards could be smarter then 2 six card rigs.

once you go bigger then that 12 card rigs make sense

here is another really good board

you can use up to six with a mix of slots and risers

https://www.amazon.com/gp/product/B01N2V0AHI/ref=oh_aui_detailpage_o06_s00?ie=UTF8&psc=1

https://www.newegg.com/Product/Product.aspx?Item=N82E16813128975

my position is most people should be using these two mobos.

the gigabyte I list that has 3 slots and 3x 1x riser spaces will do 2 slots and four risers it is pretty cheap.

to me a lot of miners are missing out on these two mobos.

vm1990

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motherboards with 2 pcie x 16 slots are designed to run 2 or more GPU's (why do you think they have them. its for gamers and heavy users to use 2 or more cars in crossfire or SLI, the only thing you really have to keep an eye on is the space between GPU's the minimum should be atleast 1 PCI slot. Gigabyte, MSI, ASUS are all leaders in gaming world so offer very good boards and can get them on a good deal most of the time.

TimeTeller

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A few years ago, I found myself with a few spare MSI 7950 TFIII reference boards and a gigabyte MB.
In the part of the world where I was, there could not be risers found anywhere in the country!
I used the direct on-board approach and well? I guess the lesson learned. They get hot!
And they get even hotter when the airflow is kinda restricted like when sitting very pretty on the MB.
It's not a good idea! Not all MB are the same and most will starve the pcie slot of current! "More Heat"
All summed up I'm glad the days of lots of heat are over.

thesmokingman

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Quote from: pzycho010 on May 15, 2017, 10:30:47 AM

Quote from: kapsel on May 15, 2017, 10:27:01 AM

Any motherboard with 2 full pcie x16 slots will work, and it works exactly the same like on risers. I used to have 2 1080s in my gaming rig, and they were mining when i wasn't at home or playing.

How's your airflow and temp?

A quick search would of turned up your answer...phillipma has 4 HUGE threads where he runs 2-4 cards directly attached to the MB for mining.

https://bitcointalksearch.org/topic/fourth-alt-coin-thread-last-three-got-oversized-1877588

pzycho010

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Quote from: kapsel on May 15, 2017, 10:27:01 AM

Any motherboard with 2 full pcie x16 slots will work, and it works exactly the same like on risers. I used to have 2 1080s in my gaming rig, and they were mining when i wasn't at home or playing.

How's your airflow and temp?

kapsel

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Any motherboard with 2 full pcie x16 slots will work, and it works exactly the same like on risers. I used to have 2 1080s in my gaming rig, and they were mining when i wasn't at home or playing.

Topic: Has anyone tried running 2 GPUs installed on the board? (Read 995 times)