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Topic: Starting from a blank page : twelve 1080 Ti (Read 230 times)

newbie
Activity: 182
Merit: 0
February 01, 2018, 03:05:46 PM
#22
Ok, thanks for the input
full member
Activity: 602
Merit: 106
February 01, 2018, 02:04:43 PM
#21
Cable-wise, what do I need to add?
One Pico ATX module, some 6-pin to sata ?
huh?

Ideally, I'd like to power an SSD and an HDD.
I myself have server PSU for GPUs and a normal ATX PSU for other components. Works really well, PICOs are nice too but if you want to power both the SSD and HDD you will need 1 MOLEX to SATA adapter.
newbie
Activity: 182
Merit: 0
February 01, 2018, 01:21:34 PM
#20
Cable-wise, what do I need to add?
One Pico ATX module, some 6-pin to sata ?
huh?

Ideally, I'd like to power an SSD and an HDD.
newbie
Activity: 182
Merit: 0
Cable-wise, what do I need to add?
One Pico ATX module, some 6-pin to sata ?
full member
Activity: 602
Merit: 106
I'm thinking about buying three of these:
https://www.ebay.fr/itm/1200W-Switching-Power-Supply-pour-GPU-Rig-Mining-Ethereum-BTC-ETH-DPS-1200FB-A-/162784502450

Or possibly 2 x 1200W and 1 x 750W (server as well)

Comments are welcome.
That should work.
newbie
Activity: 182
Merit: 0
I'm thinking about buying three of these:
https://www.ebay.fr/itm/1200W-Switching-Power-Supply-pour-GPU-Rig-Mining-Ethereum-BTC-ETH-DPS-1200FB-A-/162784502450

Or possibly 2 x 1200W and 1 x 750W (server as well)

Comments are welcome.
full member
Activity: 349
Merit: 102
I had checked out parallelminer for ideas, never really considered buying from them, thinking the shipping would be crazy. But it's $57 to the old continent, pretty reasonnable.

Of course, when you add 30% of taxes on top of the $460, that's starting to be non-negligible...



I wonder if I could run three cheaper server PSUs.

Are you thinking of getting Parallelminer 2400W server PSUs? Because they've been out of stock for a looong time and afaik may never source another supply of those.  Cry
newbie
Activity: 182
Merit: 0
Seen that, thought it would work only for two. Silly me!
newbie
Activity: 4
Merit: 0
Three server PSU, how would I sync them? Have all three starting up at the same time.
This way
https://www.parallelminer.com/wp-content/uploads/2018/01/DFPCABLE-X11.jpg
newbie
Activity: 182
Merit: 0
30% tax, damn, that's harsh mate!
It's 20% VAT and I assume there would be 10% import tax but it might be only 20%, depending on what category it's considered to be in.

Three server PSU, how would I sync them? Have all three starting up at the same time.
full member
Activity: 602
Merit: 106
I had checked out parallelminer for ideas, never really considered buying from them, thinking the shipping would be crazy. But it's $57 to the old continent, pretty reasonnable.

Of course, when you add 30% of taxes on top of the $460, that's starting to be non-negligible...



I wonder if I could run three cheaper server PSUs.

Sure you can  Smiley!
30% tax, damn, that's harsh mate!
newbie
Activity: 182
Merit: 0
I had checked out parallelminer for ideas, never really considered buying from them, thinking the shipping would be crazy. But it's $57 to the old continent, pretty reasonnable.

Of course, when you add 30% of taxes on top of the $460, that's starting to be non-negligible...



I wonder if I could run three cheaper server PSUs.
full member
Activity: 602
Merit: 106
Yeah, go with server PSUs. They work really well and don't cost a fortune. https://www.parallelminer.com/product-category/power-supply-kit/ have a look around Wink.
newbie
Activity: 182
Merit: 0
January 31, 2018, 03:21:20 PM
#9
I'm in Europe, I get 16 amps @ 230-235 V at any of my wall outlets.


Ideally, I'll try to find 2x 1300-1600 W server PSU + 2 x breakout boards + 1 x picoATX. Does that sounds okay enough, guys?


If things go south, I'll split it into two rigs but I'd like to avoid that.
full member
Activity: 846
Merit: 115
January 31, 2018, 03:01:53 PM
#8
I thought 200W per card was a reasonable asumption?

if its 250 watts at 100 tdp.

I run them at 70 tdp for better efficienciy so .7 * 250 = 175 watts per card.  So ya 2100 watts for 12 gpus plus +100 for system coponents = 2200 watts

1200 watt power supply * 2 = 2400 watts power supply avialable

2400 divide by 2200 watts = 91 percent .  Ideally you want this number lower at 50-80 percent tops for max efficiency load.

So Maybe strictly running them at 60-65 tdp will work or a bigger power supply.  Wall outlets for 15 amp wont' go over 1800 watts so you'll need to plug them into two separate wall outlets on separate circuits. Or run a dedicated 220 volt for this setup.

newbie
Activity: 182
Merit: 0
January 31, 2018, 02:26:08 PM
#7
I thought 200W per card was a reasonable asumption?
legendary
Activity: 4116
Merit: 7849
'The right to privacy matters'
January 31, 2018, 01:04:11 PM
#6
I'm asking for the 12 x 1080 Ti.

(The first rig using AMDs is done already, single ATX)

look, I have 7 x gtx1080ti and 2 PSU, one is server psu 2 kW and another is gold 500W psu
this system is stable  and working good, so 500W is powering risers and cpu ( dual core pentium) while server PSU is powering 7x gtxs
the gtx1080ti are set to PL80% and that is about 220-240W depends on algo, so it is about 1,7kw from 2 KW psu, it can handle it

he wants 12 x 1080 tis on 1 setup   he will pull over 2500 watts

hero member
Activity: 756
Merit: 507
January 31, 2018, 01:00:45 PM
#5
I'm asking for the 12 x 1080 Ti.

(The first rig using AMDs is done already, single ATX)

look, I have 7 x gtx1080ti and 2 PSU, one is server psu 2 kW and another is gold 500W psu
this system is stable  and working good, so 500W is powering risers and cpu ( dual core pentium) while server PSU is powering 7x gtxs
the gtx1080ti are set to PL80% and that is about 220-240W depends on algo, so it is about 1,7kw from 2 KW psu, it can handle it
legendary
Activity: 4116
Merit: 7849
'The right to privacy matters'
January 31, 2018, 12:56:20 PM
#4
I'm asking for the 12 x 1080 Ti.

(The first rig using AMDs is done already, single ATX)

2280 watts is not enough

also it is moron stupid to do 12x 1080ti's on 1 board.

get 2 boards  do 6 cards on each one

figure 6 x 200 = 1200 watts plus 100 for the mobo+cpu  = 1300 dc for each  setup.

very few atx  can give you the power you need .



I would get 3 of these

http://www.corsair.com/en-us/hx-series-hx1200-1200-watt-80-plus-platinum-certified-fully-modular-psu-na

with 3 of these

https://leiqing.en.alibaba.com/product/60707942149-803390961/China_New_Top_Sell_Bitcoins_Mining_Motherboard_With_12_PCIE_Ports_B250_Chipset_Intel_Manufacturer.html?spm=a2700.icbuShop.89.3.36b10622hDun4L



and read my thread on the 8 card mobo

https://bitcointalksearch.org/topic/happy-new-years-seventh-alt-coin-thread-2674194


you end up with three    4 card builds  no risers  and easy trouble shooting.

you  can do 2 with smos and shit cpus
you can do 1 with windows and a solid cpu.
newbie
Activity: 182
Merit: 0
January 31, 2018, 12:37:16 PM
#3
I'm asking for the 12 x 1080 Ti.

(The first rig using AMDs is done already, single ATX)
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