LF: Antminer On-Board PCIE Connector

[Yey09]

I've burned/melted a few of them and I'm looking to where to find replacement for them.

I'm looking for the one that was soldered on hashing board, anyone knows where I can find?

[NotFuzzyWarm]

For a start, where do you live? Asia? North America? Europe?
Any mainstream electronics parts distributor such as DigiKey, Avenet, Newark, Farnel, etc will carry them. DO NOT EVEN THINK of using eBay etc - god knows what type of quality you will get.

They are Molex 6-pin PCIe male plugs. Available in many different grades, go for ones that are at least silver plated or better yet selective gold plated. That has a GREAT effect on the amp ratings and lifetime.

That said, if you are burning sockets -- REPLACE the PCIe plugs on your cables! No Antminer comes anywhere close to pushing the current ratings of the plugs on them. That leaves crappy or worn-out cable ends. Side note: Power plugs have a mating cycle lifetime (how many plug/unplugs) that to most folks not familiar with design is very low -- even the best are only rated for 50 or so before they have to be de-rated. El-cheapo connectors are lucky to go past 10 cycles.

[Yey09]

For a start, where do you live? Asia? North America? Europe?
Any mainstream electronics parts distributor such as DigiKey, Avenet, Newark, Farnel, etc will carry them. DO NOT EVEN THINK of using eBay etc - god knows what type of quality you will get.

They are Molex 6-pin PCIe male plugs. Available in many different grades, go for ones that are at least silver plated or better yet selective gold plated. That has a GREAT effect on the amp ratings and lifetime.

That said, if you are burning sockets -- REPLACE the PCIe plugs on your cables! No Antminer comes anywhere close to pushing the current ratings of the plugs on them. That leaves crappy or worn-out cable ends. Side note: Power plugs have a mating cycle lifetime (how many plug/unplugs) that to most folks not familiar with design is very low -- even the best are only rated for 50 or so before they have to be de-rated. El-cheapo connectors are lucky to go past 10 cycles.

Thanks. I'm in Asia but I can order it anywhere to be shipped to my place. currently I soldered the wires directly to the board, but im planning to sell it and I dont want the buyer to get discourage with the burnt plugs.

I've searched online but most of the hits are not the same as what on the board that has a bent pin that was soldered to the board. I found one at Mouser but it doesnt say it's a PCI-e.

[cableiso]

The actual name from Molex is "Mini Fit Jr".  Look that up, you'll find a lot of hits.  Get the 6-pin.

[lightfoot]

Yep. 6 pin either 90 degree or straight depending on the board. I recommend nickel ones over brass plated myself and get quality; it doesn't cost much more and is worth so much...

Digi-key has a pretty good selection: 732-1939-ND is a good start. You also need a really good iron and a pre-heater at the least. These boards have pretty heavy copper planes, a straight soldering iron can lead to the vias being burned and de-laminated, which is a real mess to repair. Likewise without proper amounts of heat you can wind up with a cold solder joint which means more resistance and another failure.

If you want me to look at it, feel free to drop me a PM.

C

[Apprentice]

I hope this is still active.

can anyone suggest an online shop/online link for buying the APW power cables? I want to replace the complete cables and not only the connectors.

thanks.

[lightfoot]

I hope this is still active.

can anyone suggest an online shop/online link for buying the APW power cables? I want to replace the complete cables and not only the connectors.

thanks.

Ebay is a pretty good place for them. I bought some power cables with molex plugs when I was hooking up some HP power supplies last year and this seller had good stuff:

14-16 gauge is the right type, 1070bh was the seller name.

Hope that helps. I'll agree that gold plated is nice, but avoid brass at all costs. Nickel is actually my favorite, Lightfoot recommends:

https://www.digikey.com/products/en?keywords=732-1939-ND

C