The 5x 1080 Ti GPU Rack!

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chriscambridge
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The 5x 1080 Ti GPU Rack!

Post by chriscambridge » Sun Jan 07, 2018 7:59 am

So I had a few issues with one of my mobos' hence I was stuck with 2x 1080 Tis spare, so I thought I would try and see if I could try and get 5x 1080 Tis running on a single rack. Surprisingly it work..

Incase anyone is interested in the hardware used:

Corsair RM850x PSU
Enermax 1250w PSU
Add2PSU connector (adds two PSU's together)

Asrock H81 Pro BTC R2.0 Motherboard (*Avoid this rubbish mobo)
Intel i7-4790 CPU
16GB DDR3 RAM

2x Gigabyte Gaming OC 1080 Ti
1x Gigabyte Aorus 1080 Ti
1x MSI GamingX 1080 Ti
1x MSI Armor 1080 Ti

5x USB PCIE risers (x1 to x16)

1x GPU Rack (Aliexpress.com)

** Please do NOT quote these images on this forum as that makes a local copy **

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Last edited by chriscambridge on Thu Jan 11, 2018 12:42 am, edited 2 times in total.

UBT - Timbo
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Re: The 5x 1080 Ti GPU Rack!

Post by UBT - Timbo » Sun Jan 07, 2018 12:31 pm

Hi Chris

So, I wonder how the neighbours feel about the amount of fan noise that lot produces?? Plus I'm sure it keeps you nice and warm in the winter. ;-)

I was hoping to see a nice heat exchanger, gaffa taped onto the exhausts of the GPU's so that they could boil up your morning cuppa !!

regards
Tim

chriscambridge
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Re: The 5x 1080 Ti GPU Rack!

Post by chriscambridge » Sun Jan 07, 2018 1:29 pm

It's not too bad as Pascal GPUs do not really make that much noise even under load.

They do produce a fair amount of heat though, which is fine in Winter, it just means you get to offset your non-existent heating bill from the running costs.

Summer however will be quite another story..

chriscambridge
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Re: The 5x 1080 Ti GPU Rack!

Post by chriscambridge » Mon Jan 08, 2018 8:02 am

One day...

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Woodles
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Re: The 5x 1080 Ti GPU Rack!

Post by Woodles » Mon Jan 08, 2018 8:48 am

Very impressive Chris.

Following on from Tims idea of making a cuppa, just place a slice of bread between each GPU and breakfast toast is sorted as well :)

Mark

chriscambridge
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Re: The 5x 1080 Ti GPU Rack!

Post by chriscambridge » Mon Jan 08, 2018 3:32 pm

Well that is tea and toast sorted then..

I am just putting the 2nd rack together now as the final Ti has arrived.

Also I just setup 4 VMs on the V3 so I am currently tested that strategy too. In truth VMs are pretty remarkable really.

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Re: The 5x 1080 Ti GPU Rack!

Post by Woodles » Mon Jan 08, 2018 3:51 pm

Sounds good to me. I don't suppose they get hot enough for bacon .... ? :D

Have you warned the local power grid about the expected dip?

Pretty simple to set up and run, you'll have more difficulties getting Boinc to run how you want it on all four VMs.

Mark

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Re: The 5x 1080 Ti GPU Rack!

Post by UBT - Timbo » Mon Jan 08, 2018 3:57 pm

Woodles wrote:Sounds good to me. I don't suppose they get hot enough for bacon .... ? :D
Hi Mark

I'm sure if they were overclocked and laid on their sides with a bit of tin foil (to stop the bacon grease fouling up the GPU fans), I've sure they would do fine.

If the entire rack was enclosed, it might even get hot enough to cook some jacket spuds too... ;-)
Have you warned the local power grid about the expected dip?

Pretty simple to set up and run, you'll have more difficulties getting Boinc to run how you want it on all four VMs.

Mark
I think it might be time for Chris to invest in some nice solar panels and a Tesla 100MW Powerwall, as used here:

http://www.bbc.co.uk/news/world-australia-42190358

I think Chris might find some open space on Jesus Green he could "compulsory purchase" and run some nice thick cables down the road and into his gaff?

regards
Tim

chriscambridge
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Re: The 5x 1080 Ti GPU Rack!

Post by chriscambridge » Mon Jan 08, 2018 4:45 pm

You mean Parker's piece.. Although I did grow as a kid a couple of streets away from Jesus Green.

Believe me, If I had the money I would be buying Tesla batteries (and cars) for Wind and Solar arrays.

I have just managed to get my very first VM based work unit crunching..

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Re: The 5x 1080 Ti GPU Rack!

Post by UBT - Timbo » Mon Jan 08, 2018 5:34 pm

chriscambridge wrote:You mean Parker's piece.. Although I did grow as a kid a couple of streets away from Jesus Green.
Hi Chris

Ah...yes, that's the place - when I lived near to Cambridge, I always got those two muddled up. :oops:

PP is where they hold the Winter Ice Rink and opposite where the fire station was rebuilt along with some apartments...

regards
Tim

chriscambridge
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Re: The 5x 1080 Ti GPU Rack!

Post by chriscambridge » Mon Jan 08, 2018 5:53 pm

That's the one.

I now have 5 boinc apps VM all running Yafu across 50 threads, on a 28 thread CPU :?

chriscambridge
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Re: The 5x 1080 Ti GPU Rack!

Post by chriscambridge » Tue Jan 16, 2018 9:48 am

GPU Rack Number 2!

3x 1080 + 1x 1080 Ti

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