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Bimmber (OP)
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January 23, 2018, 09:22:32 AM |
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Anybody  |
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shimpa
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January 23, 2018, 09:35:24 AM |
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I run a very similar setup.
Depending on the algo and the card optimization (OC/DC) it should run that no problem.
On 220V that PSU runs 3x1080Ti + mainboard no issue. Don't know if you have 220V but I think it's 900W max on 110V which should be enough in theory if you optimize your cards.
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Bimmber (OP)
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January 23, 2018, 09:39:02 AM |
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I`m in Europe, 220v.
I`m just wondering - my BB has 6 pins, but PICO input connector 4 pins - is that ok? My mobo has 8 pin power connector, but PICO 4 pin. Do you have same and it works?
In what sequence you turn your psu`s on ?
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spinx
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January 23, 2018, 09:55:06 AM |
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Hi, Depending on what kind of pci-e risers you got, you might need 5V from the server psu. I had old risers (006C?) that only had a molex connector, this is because gpu's need 5V for start signal as i understood. The better model of pci-risers has this 12V -> 5V voltage transformation built in, and therefore only requires 12V on a 6pin pci-e connector. This is how i solved getting 5V from the 12V server psu's https://bitcointalk.org/index.php?topic=1955358.msg28576837#msg28576837This could also be a idea to feed the motherboard molex from the server psu instead of the pico-psu. |
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Bimmber (OP)
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January 23, 2018, 09:56:29 AM |
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shimpa
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January 23, 2018, 09:59:59 AM |
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I`m just wondering - my BB has 6 pins, but PICO input connector 4 pins - is that ok? My mobo has 8 pin power connector, but PICO 4 pin. Do you have same and it works?
My PICOs don't have an input connector like that, I have to modify them to work with a 6-pin PCIe connector. It's okay as long as it's a 12V input PICO and you don't swap the polarity. Make sure you don't just look at the wire colors but actually check polarity with a multimeter because I actually got a number of PCIe power cables that have their wires swapped. In what sequence you turn your psu`s on ?
I turn them on at the same time. I actually have this all on a switched PDU. Depending on how long your mainboard POSTs you should be good even if you don't power them on at the same time. It's safe to turn the card-only PSUs first as well. |
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spinx
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January 23, 2018, 10:12:27 AM |
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You only need 12V 6-pin male connectors from the psu then. |
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Michael20
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January 23, 2018, 10:41:27 AM |
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You could use the 4pin mobo from the Pico for your Mainboard. http://i57.tinypic.com/20horih.png8pin is need, if maximal oc, and you plug gpu's direct on Board. |
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Bimmber (OP)
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January 23, 2018, 10:59:31 AM |
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Thank you all for your help, fingers crossed it all works today and I see no sparks when I power it on  |
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bartjeyayo
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January 23, 2018, 11:55:49 AM |
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OP. I have 20 rigs connected with server PSU and PICO's and never ran into problems.
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Bimmber (OP)
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January 23, 2018, 11:56:26 AM |
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In a exact same setup like mine?
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Bimmber (OP)
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January 23, 2018, 12:48:36 PM |
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bartjeyayo
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January 23, 2018, 12:52:50 PM |
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Did you mess up connecting the power?  Seems like you put minus on plus and plus on minus. How did you managed to do this?  https://imgur.com/IwfAmlpWhen i take a look at my power supplies. At the lip side i got minus and the outside got plus. Just opposite around as you. |
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Bimmber (OP)
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January 23, 2018, 12:54:45 PM |
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Which one?
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Bimmber (OP)
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January 23, 2018, 01:23:33 PM |
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Response from PICO distributor:
Oh dear. I can immediately see what is wrong here.
In image 2 the *output* of the picoPSU is connected to the motherboard AUXPWR1 – which is also an output!
According to the manual for your TB250-BTC this is an auxiliary power connection (to give additional power to) graphics cards. i.e. power goes into motherboard through the ATX connector, and comes out here.
Hopefully this hasn’t damaged the motherboard. It has obviously damaged the picoPSU.
FWIW the output you connected is to power a hard drive or similar device.
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P00P135
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January 23, 2018, 02:11:54 PM |
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Response from PICO distributor:
Oh dear. I can immediately see what is wrong here.
In image 2 the *output* of the picoPSU is connected to the motherboard AUXPWR1 – which is also an output!
According to the manual for your TB250-BTC this is an auxiliary power connection (to give additional power to) graphics cards. i.e. power goes into motherboard through the ATX connector, and comes out here.
Hopefully this hasn’t damaged the motherboard. It has obviously damaged the picoPSU.
FWIW the output you connected is to power a hard drive or similar device.
Was that just an old 160w pico? Think you need one of the newer 200-250w pico's to be able to power anything more than a hard drive and normal motherboard. I think that molex connection sucked too much juice and just smoked the low watt pico. |
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spinx
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January 23, 2018, 02:30:51 PM |
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Response from PICO distributor:
Oh dear. I can immediately see what is wrong here.
In image 2 the *output* of the picoPSU is connected to the motherboard AUXPWR1 – which is also an output!
According to the manual for your TB250-BTC this is an auxiliary power connection (to give additional power to) graphics cards. i.e. power goes into motherboard through the ATX connector, and comes out here.
Hopefully this hasn’t damaged the motherboard. It has obviously damaged the picoPSU.
FWIW the output you connected is to power a hard drive or similar device.
Was that just an old 160w pico? Think you need one of the newer 200-250w pico's to be able to power anything more than a hard drive and normal motherboard. I think that molex connection sucked too much juice and just smoked the low watt pico. I also smoked a 160w pico when i used the single molex to power a usb pci-e riser (rx560 with no 6pin). Fingers crossed that mobo survived! |
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john1010
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January 23, 2018, 02:32:00 PM |
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Mine is asrock pro btc+ is it okay to not powerup the number 2 molex in the motehrboard? or is it advisable to powerup both?
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Bimmber (OP)
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January 23, 2018, 02:33:14 PM |
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Was that just an old 160w pico? Think you need one of the newer 200-250w pico's to be able to power anything more than a hard drive and normal motherboard. I think that molex connection sucked too much juice and just smoked the low watt pico.
Not old, brand new. 160w is more than enough. My cpu is only 54w and ssd 2w. Mobo takes 10-30w only. If you read PICO distributors response, it says I plugged molex in wrong place. |
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