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Author Topic: DIY PCI-e cables for S5, S7, R4 and S7 ASIC  (Read 1755 times)
NotFuzzyWarm
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February 18, 2017, 08:59:28 PM
 #21

I stock Belden wire, but that one looks like the same specs.
Probably is. as Weico naturally has cross-references to most of what Belden and the other major mfgrs make. Difference is we don't pay for the distributor markup Smiley

They are more than happy to mail you some samples to verify the wire characteristics before placing a large order.

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February 18, 2017, 09:28:21 PM
 #22

I ordered a few spools to see how it compares. Thanks for the help.

can you share some brand/model plz.... i'm completely new in this things...
but if the price is under 1000$ could be a good deal!

This looks very similar to the machine I have. There is another listing on ebay that is about $60 cheaper, but there was only one left.

http://www.ebay.com/itm/110V-Automatic-Computer-Wire-Peeling-Stripping-Cutting-Machine-0-1-8-mm2-/331156485839

be prepared to experiment with it, as the buttons on mine are in chinese and the instructions were useless translations.


It's been so long since I bought a reel of pins I can't remember where I got them.
The PCIe connectors I got from Heilind - https://estore.heilind.com/45559-0002/MOL45559-0002.html
The crimper from Pololu - https://www.pololu.com/product/1928  (I think that's the same crimper, it's been a few years)

Edit: You can find distributors for the parts you need from this page: http://www.molex.com/molex/products/family?key=minifit_plus_connector_system&channel=products&chanName=family&pageTitle=Introduction&parentKey=minifit_products


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February 19, 2017, 11:03:19 AM
 #23

I ordered a few spools to see how it compares. Thanks for the help.

can you share some brand/model plz.... i'm completely new in this things...
but if the price is under 1000$ could be a good deal!

This looks very similar to the machine I have. There is another listing on ebay that is about $60 cheaper, but there was only one left.

http://www.ebay.com/itm/110V-Automatic-Computer-Wire-Peeling-Stripping-Cutting-Machine-0-1-8-mm2-/331156485839

be prepared to experiment with it, as the buttons on mine are in chinese and the instructions were useless translations.


It's been so long since I bought a reel of pins I can't remember where I got them.
The PCIe connectors I got from Heilind - https://estore.heilind.com/45559-0002/MOL45559-0002.html
The crimper from Pololu - https://www.pololu.com/product/1928  (I think that's the same crimper, it's been a few years)

Edit: You can find distributors for the parts you need from this page: http://www.molex.com/molex/products/family?key=minifit_plus_connector_system&channel=products&chanName=family&pageTitle=Introduction&parentKey=minifit_products


@NotFuzzyWarm and @agentcash
thank you a lot for the support!!!
i really appreciate it!!!
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February 19, 2017, 12:20:11 PM
 #24

I'm surrounded by one hour at the Molex site...
Incredible, how many parts what they look identical, have differnt uses...
this seems all the same PCI-e 2 row 6pin female pins
but what is used with PCI-e power cables???
no code are printed in my PSU standard cables...
so, how to understand..
http://www.molex.com/molex/products/listview.jsp?channel=products&fs=category:Crimp%20Housings,productname:%22mini-fit%20jr*%22,application:wire-to-wire,gender:or(female||receptacle),numberofrows:2&sType=z
and i found flammability standard too...
UL 94 -0 ,1 and 2...
googling i found http://web.rtpcompany.com/info/ul/ul94v012.htm
i think UL 94-0 is ok???
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February 19, 2017, 09:40:23 PM
 #25

Yeah it gets pretty complex with all the choices available. The part number for PCIe connector I use is 45559-0002, you can see it on the Heilind link

https://estore.heilind.com/45559-0002/MOL45559-0002.html

If you scroll way down that page there are the female pin terminals that go inside of it. They have many options as well, such as gold plating, etc. The cheapest option there looks like part # 39-00-0077 which is tin over copper plated brass.

https://estore.heilind.com/39-00-0077/MOL39-00-0077.html

Edit: After rereading your post, maybe you are asking what part plugs into the PSU itself? That tends to be proprietary by manufacturer of the PSU. Most of the people that I've seen making their own cables use server PSUs and choose their terminals based on what fits the blades or they direct solder.
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February 20, 2017, 08:27:59 AM
 #26

Yeah it gets pretty complex with all the choices available. The part number for PCIe connector I use is 45559-0002, you can see it on the Heilind link

https://estore.heilind.com/45559-0002/MOL45559-0002.html

If you scroll way down that page there are the female pin terminals that go inside of it. They have many options as well, such as gold plating, etc. The cheapest option there looks like part # 39-00-0077 which is tin over copper plated brass.

https://estore.heilind.com/39-00-0077/MOL39-00-0077.html

Edit: After rereading your post, maybe you are asking what part plugs into the PSU itself? That tends to be proprietary by manufacturer of the PSU. Most of the people that I've seen making their own cables use server PSUs and choose their terminals based on what fits the blades or they direct solder.
thank you agentcash!!!
now i'm deeping in weico site to choose wire...
then i ask fore some quote.
Do you Know if Weico have EU dealers?
NotFuzzyWarm
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February 20, 2017, 11:05:41 PM
 #27

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Do you Know if Weico have EU dealers?
No idea but if they do odds are it will cost more because any importer/reseller has to make money and that comes from their markup on reselling wire or other products.

Just ask Weico. On the website they do advertise international shipping but no doubt if shipping to the EU there will be VAT to be paid... That said, the cables certainly are a business expense so I assume your country lets it be a tax write-off no?

And I still think it would be faster/cheaper to just get the cables from Sidehack....

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unsoindovo
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February 21, 2017, 08:13:12 AM
 #28


And I still think it would be faster/cheaper to just get the cables from Sidehack....


i think it is my last choise...
DIY is not convenient :-(
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February 21, 2017, 10:19:55 AM
 #29

If you like to look at this side:
http://de.rs-online.com/web/p/leiterplattensteckverbinder-gehause/2332769/

Sorry it is in german, but you can change it according to your country.

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unsoindovo
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February 21, 2017, 11:21:17 AM
 #30

If you like to look at this side:
http://de.rs-online.com/web/p/leiterplattensteckverbinder-gehause/2332769/

Sorry it is in german, but you can change it according to your country.

thank you for the tip...
but i confirm who is not convenient to home build cables..
For connectors, Heilind is more convenient:
https://estore.heilind.com/45559-0002/MOL45559-0002.html
but maybe, it is mor expensive for shipment...
I think RS have EU dealers too.

it is more convenient to buy cables from good sellers like sidehack or Finksy!

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February 21, 2017, 01:37:31 PM
 #31

For a big order like that I can give a pretty good discount. Message me if you want to talk details.

agentcash
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February 21, 2017, 07:27:42 PM
 #32

For a big order like that I can give a pretty good discount. Message me if you want to talk details.

On a related note, you didn't happen to find a source for the Dell Z750P backplane connectors that was cheaper than multiple dollars each did you?

I remember last time I looked they were wanting $7 a piece or somewhere along those lines and didn't have any in stock, with a backorder time of months.
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February 21, 2017, 07:46:41 PM
 #33

No, it's pretty much a factory order part. $7 apiece is quite a bit more than I typically spent but then we bought several hundred at a time.

NotFuzzyWarm
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February 21, 2017, 11:19:02 PM
 #34

If you like to look at this side:
http://de.rs-online.com/web/p/leiterplattensteckverbinder-gehause/2332769/

Sorry it is in german, but you can change it according to your country.
Those particular ones are not PCIe connectors. Same general family yes but not the correct ones.

The site shows the 3mm-pitch (pin spacing) version with a 5A rating and max wire size of 20ga -- too small.

The correct PCIe connectors as shown on https://estore.heilind.com/45559-0002/MOL45559-0002.html are 4.2mm pitch,  actually a 9A rating and up to 16ga.... Even the data sheet linked http://www.molex.com/molex/products/datasheet.jsp?part=active/0455590002_CRIMP_HOUSINGS.xml clearly states that is is PCIe (tm) and what they are for.

Just another reason that when it comes to large undertaking like 1,000 cables, unless you already have the know how, equipment, and time  to do it right, DIY is not ever really an option... Far better to pay for them pre-made by someone who has already done the homework and investment involved.

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
unsoindovo
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February 22, 2017, 08:20:43 AM
 #35

Just another reason that when it comes to large undertaking like 1,000 cables, unless you already have the know how, equipment, and time  to do it right, DIY is not ever really an option... Far better to pay for them pre-made by someone who has already done the homework and investment involved.

i think this is the most impontant components!
I tried to diving into all this standard... wire and connectors, but if you have not a massive know how, you risk to loose time, money and if you do the wrong things, you risk to bust your miners...
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