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Topic: Specs on BFL Single power adapter? - page 3. (Read 13018 times)

legendary
Activity: 1260
Merit: 1000
March 19, 2012, 02:06:30 PM
#76
Well shit...

So, do we have a comprehensive parts list and requirements?
donator
Activity: 1218
Merit: 1079
Gerald Davis
March 19, 2012, 01:50:31 PM
#75
So I got a quote back.  Simply not economical for our purposes.

3x barrel to 1x PCIe 6 pin adapter (2ft in length) is $25.34 ea in qty 100.  Even qty 250 only brings that down to $19.88.  Sad

Very disappointing since I estimate the parts to be <$8 in bulk.  Needless to say I won't be ordering them and I have no interest in doing any by hand beyond my personal use.
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
March 19, 2012, 09:49:05 AM
#74
Hey Mr BFL man,
If we don't need the included PSU, can we get a discount? Smiley
Taking into account that PSU weighs as much as the unit itself, shipping discount should be offered as well.... I'm just saying.  Grin Roll Eyes
Lol, I suppose it does make a bit of a difference if you expect them to ship you 50 at once Grin
hero member
Activity: 628
Merit: 504
March 19, 2012, 09:46:40 AM
#73
Hey Mr BFL man,
If we don't need the included PSU, can we get a discount? Smiley
Taking into account that PSU weighs as much as the unit itself, shipping discount should be offered as well.... I'm just saying.  Grin Roll Eyes
sr. member
Activity: 446
Merit: 250
March 17, 2012, 12:37:39 PM
#72
Although it pains me a little to do it I'm going to just cut off the PCIe connector and wire these on. They were $4 a piece and I can use crimps or whatever and will be fast and easy. I bought a 1200 watt supply PSU COOLMAX|ZPG-1200B 1200W R to run the 14 singles.
Why not use one of these adapters instead of ruining the resale value of your PSU?

I'd have to be a bit more patient to do that (Can't find any of those locally, I tried). Thank you for pointing out where to get them. I may wait. I've not done any cutting.....yet.
full member
Activity: 210
Merit: 100
March 17, 2012, 08:47:53 AM
#71
Although it pains me a little to do it I'm going to just cut off the PCIe connector and wire these on. They were $4 a piece and I can use crimps or whatever and will be fast and easy. I bought a 1200 watt supply PSU COOLMAX|ZPG-1200B 1200W R to run the 14 singles.
Why not use one of these adapters instead of ruining the resale value of your PSU?
sr. member
Activity: 446
Merit: 250
March 17, 2012, 12:09:30 AM
#70
Although it pains me a little to do it I'm going to just cut off the PCIe connector and wire these on. They were $4 a piece and I can use crimps or whatever and will be fast and easy. I bought a 1200 watt supply PSU COOLMAX|ZPG-1200B 1200W R to run the 14 singles.



These were available at my local electronic supply house. I imagine even Radio Shack would have them.

They had cheaper ones (24 gauge wire which I felt was a bit small) and they had just barrel connectors but I don't want to waste a day trying to screw with soldering to barrel connectors. These are a simple snip, strip and crimp.

legendary
Activity: 1876
Merit: 1000
March 16, 2012, 11:44:57 PM
#69

Thxs.  I just ordered 2.  but any more and I would want to hook them to my seasonics.
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
March 16, 2012, 11:41:40 PM
#68
I did not.  I sent a followup email on Thursday was told I would be given a quote on Friday.  I wasn't.

That pesky thing called my real job preventing me from making another followup.  I gave them a pinout and technical drawings.  I will let everyone know when I know.

If I can't find an OEM to do it the cables could be done by hand but it will be slow tedious work.

A 3x barrel to 1 PCIe 6 pin adapter requires

1) cut 6 wires for x ft in length
2) strip both ends.
3) crimp male pin to one end of all 6 wires.
4) solder crimp pin
5) attach 6 pins to PCIE 6pin module
6) solder 3 of the wires to shell connector on barrel adapter
7) solder 3 of the wires to the center connector on barrel adapter
Cool attach barrel cover
9) cover assembly in shrink tubing and shrink
10) test

I have a nice automatic stripper, but the crimping would piss me off rapidly. If I had one of Molex's dedicated $350 crimpers, I might give it better consideration, but then there is soldering to worry about.. Nah no thanks Sad
donator
Activity: 1218
Merit: 1079
Gerald Davis
March 16, 2012, 11:38:20 PM
#67
I did not.  I sent a followup email on Thursday was told I would be given a quote on Friday.  I wasn't.

That pesky thing called my real job preventing me from making another followup.  I gave them a pinout and technical drawings.  I will let everyone know when I know.

If I can't find an OEM to do it the cables could be done by hand but it will be slow tedious work.

A 3x barrel to 1 PCIe 6 pin adapter requires

1) cut 6 wires for x ft in length
2) strip both ends.
3) crimp male pin to one end of all 6 wires.
4) solder crimp pin
5) attach 6 pins to PCIE 6pin module
6) solder 3 of the wires to shell connector on barrel adapter
7) solder 3 of the wires to the center connector on barrel adapter
8 ) attach barrel cover
9) cover assembly in shrink tubing and shrink
10) test

For the couple dollars in markup no thanks.  Smiley
legendary
Activity: 1876
Merit: 1000
March 16, 2012, 11:29:24 PM
#66
Tentative good news.  OEM is considering the order a small run.  Not sure if it is past business or that the economy is slow.  In the past I know the have balked at runs below thousand units.  No idea on pricing yet, no need to respond saying you want one, and don't get your hopes up yet.

My contact called me back.  He asked for a wiring diagram to give to the team. Anyone have experience making wiring drawings?  Smiley
Diagram is pretty simple but my graphical skills are lacking.  If anyone has experience and wants to help let me know in thread or by PM.

Also if someone can measure the PSU barrel adapter.  Measure in mm the length of the metalic part.  I know BFL indicates 12mm but I just want to make sure.  12mm seems a very strange length for 2.5mm/5.5mm barrel plug.  Can't seem to find a part # anywhere (Molex, digikey, half dozen suppliers, etc).  Found 8mm length and 14mm length but not 12mm length.  Huh  If someone from BFL is reading this and has part # for the barrel power socket on the BFL Single board it would help finding an exact match.

D&T,  did we ever get word whether you can get a run of these?  I would like to pitch in.
full member
Activity: 227
Merit: 100
March 13, 2012, 05:15:32 AM
#65
ZTEX have a guide for adapting to a computer PSU:

http://wiki.ztex.de/doku.php?id=en:ztex_boards:ztex_fpga_boards:cluster_power_supplies

I guess it can be applied here, not sure about the power though.


Connecting a computer PSU to BitFORCE units is very easy. For this, all you need is a barrel jack and a PSU. The center
of the barrel jack must be connected (or soldered) to the Yellow wire (providing 12Volts) and the outer-cylinder of the
jack is connected to the black wire (the GND). Please note that each yellow wire must be able to provide 70Watts
of power (that's around 5.83A per wire).

The jack needs to be 5.5mm OD and 2.5mm ID (OD=Outer Diameter, ID=Inner Diameter).


Regards,
member
Activity: 116
Merit: 10
bitcoin afficionado
March 13, 2012, 04:54:03 AM
#64
ZTEX have a guide for adapting to a computer PSU:

http://wiki.ztex.de/doku.php?id=en:ztex_boards:ztex_fpga_boards:cluster_power_supplies

I guess it can be applied here, not sure about the power though.
full member
Activity: 227
Merit: 100
March 12, 2012, 07:20:36 PM
#63
Hey Mr BFL man,
If we don't need the included PSU, can we get a discount? Smiley

We can ship your unit(s) without PSU (10$ reduction).


Regards,
rjk
sr. member
Activity: 448
Merit: 250
1ngldh
March 12, 2012, 05:35:30 PM
#62
Hey Mr BFL man,
If we don't need the included PSU, can we get a discount? Smiley
I still think the idea of either a PSU or an adapter is a good idea for a choice.
legendary
Activity: 1795
Merit: 1198
This is not OK.
March 12, 2012, 05:33:44 PM
#61
Hey Mr BFL man,
If we don't need the included PSU, can we get a discount? Smiley
donator
Activity: 1218
Merit: 1079
Gerald Davis
March 12, 2012, 05:26:16 PM
#60
The socket part number is: CP-002BH-ND (Digikey part number) and the manufacturer part number is: PJ-002BH.

Perfect.  Thanks.
legendary
Activity: 1260
Merit: 1000
March 12, 2012, 05:17:43 PM
#59
Oh whoops, guess my info is redundant now Smiley
legendary
Activity: 1260
Merit: 1000
March 12, 2012, 05:17:21 PM
#58
I just checked my "shipping" PSU tip.. I have been working on my pre-release PSU brick - the tip is 12mm.  10mm metal and 2mm plastic.
full member
Activity: 227
Merit: 100
March 12, 2012, 05:15:42 PM
#57
Tentative good news.  OEM is considering the order a small run.  Not sure if it is past business or that the economy is slow.  In the past I know the have balked at runs below thousand units.  No idea on pricing yet, no need to respond saying you want one, and don't get your hopes up yet.

My contact called me back.  He asked for a wiring diagram to give to the team. Anyone have experience making wiring drawings?  Smiley
Diagram is pretty simple but my graphical skills are lacking.  If anyone has experience and wants to help let me know in thread or by PM.

Also if someone can measure the PSU barrel adapter.  Measure in mm the length of the metalic part.  I know BFL indicates 12mm but I just want to make sure.  12mm seems a very strange length for 2.5mm/5.5mm barrel plug.  Can't seem to find a part # anywhere (Molex, digikey, half dozen suppliers, etc).  Found 8mm length and 14mm length but not 12mm length.  Huh  If someone from BFL is reading this and has part # for the barrel power socket on the BFL Single board it would help finding an exact match.

The metallic part of the barrel jack is 12mm, but it can be longer as well. The socket part number is: CP-002BH-ND (Digikey part number)
and the manufacturer part number is: PJ-002BH.


Good Luck,
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