Bitcoin Forum

For all the guys who have fried connectors on their PCB. (Sp20, Neptune, etc....)

I always read that need help to find the connector to resolder on the pcb.

Here is a link where you can start searching.

http://www.tme.eu/en/details/mx-39-30-1060/mini-fit-connectors/molex/39-30-1060/#teb32442a0ef1a08ca93b8c016ea8a128

Here are to smiliar, but i would go with the one above because of the flammability rating.

http://www.tme.eu/en/details/mx-39-30-0060/mini-fit-connectors/molex/39-30-0060/#teb32442a0ef1a08ca93b8c016ea8a128

http://www.tme.eu/en/details/mx-5569-06a1/mini-fit-connectors/molex/0039291068-5569-06a1/#teb32442a0ef1a08ca93b8c016ea8a128


Hope it helps.

13a, 13a and 9a; this amperage is too low :-\

There is no Molex connector rated more then 13 amps with 6 pins....  ;) (It's not safe at all to use 6 pin connectos for such a high wattages at the miners....) This is why Bitmain recommend to use both connectors at the S5. I don't want to talk about the SP20-s and Neptunes.....

You can check by yourself here if you have time:

http://www.molex.com/molex/products/listview.jsp?query=&offset=0&npp=40&sType=z&fs=categoryid:pcbheaders,productname:"mini-fit jr.",application:wire-to-board,orientation:right-angle,numberofrows:2&channel=Products

I've seen 288W as a practical limit for per-cable SP20 power, which is a good number. That's 24A per cable. The Neptune as it is should not exist, and whoever greenlit that design with a single connector should be fired for selling a product more-or-less specifically designed to burn down your house.

Even 13A per pin is more than most cables are rated for (9A per pin is common). That's probably a pretty sturdy connector.

That site has lots of really cool soldering tools as well. If only there was a Mouthwatering Emoti! ;D

Humm.. not really sure about what is the correct pin voltage for a neptune cube ( i mean the pcie power conector..indeed.)

what is the correct item for this miner ?  ( i have 10 pieces to replace...  ::)

I don't know because i don't own any Neptunes, but you won't find pcie connector rated more then 13 amps.

The Neptune cube should have two connectors not one. This is why are they melting...... That whole stuff is an engineering failure.

yeah.. this a well knew issue on  these neptune boards.. i really dont understand why KNC implements these  "single shitty pcie power connectors" ... if it's for saving "money" they bypassed a second pcie conector on the board, thats really no sense..  :-[

To be clear that connector is 13A per contact.  Actually quite sturdy.

Source:
http://www.molex.com/molex/products/datasheet.jsp?part=active/0039301060_PCB_HEADERS.xml (http://www.molex.com/molex/products/datasheet.jsp?part=active/0039301060_PCB_HEADERS.xml)

Still not enough to keep KNC from burning your house down should you make the mistake of buying a neptune.

--
novak

Don't bother with new PCI-e connectors, if you are going to run them at full speed (475Mhz) just solder the wires directly to the PCB. The new PCI-e connector will burn again eventually because one connector for ~340Watt (~380Watt at the wall Platinum PSU 92% efficiency) is not only insane but retarded and dangerous, Thx KNC. The "loose" PCI-e connectors will accumulate resistance over time, because of the heating and tarnishing, that will make them even hotter and more resistance will accumulate.....ect. ect. Until they catch fire, and if you are unlucky your PSU will too. Best solution minimize the number of loose connectors in you setup, terminal PSU connectors are optimal. I found that if running over 425Hhz, one needs to do this MOD. It's just easier to sleep at night knowing that you will not catch fire in the middle of the night  ;D.

This site is pretty nice. I have quite a few PCI-e cable connector that melted down with the shit connectors in the GAW Falcon/Zeus rebrand. So i'm thinking of also rebuying new 6pin pci-e connector with new pins and whatever the tool is to crimp those on the wires.

But this site is .eu, is there a site more appropriate for North America or Canada? I'd rather not get raped on shipping, as there is quite a bit of little things i'd buy to repair and rebuilt some wire and electronics.

Anyone know where you can buy this? Anybody on eBay or Aliexpress selling these? Can't even find them on Digikey

Aliexpress: http://www.aliexpress.com/item/Free-Shipping-High-Quality-ATX-EPS-Molex-4-2mm-5557-2-3P-Pin-Straight-Needle-Seat/32470386883.html
You can search yourself if you need it angled.

What would be the proper search term for his? Because PCIe Male only results in the cables not the actual connector.

http://www.aliexpress.com/item/20pcs-lot-2-3PIN-2PIN-Kit-Pitch-4-2MM-Curved-Solid-Needle-90-Degree-5557-Double/32595743844.html?ws_ab_test=searchweb201556_2%2Csearchweb201644_1_10001_10002_10005_301_10006_10003_10004_62%2Csearchweb201560_6%2Csearchweb1451318400_6148&spm=2114.01020208.3.251.WaBryN

"molex pcb connector"

I see. Thanks alot