and here im playing with a HP server, 10 SAS HDDs, 2x Xeon CPUs, room for 6PCIex8/16 cards, and 2x 800W PSUs neatly in 2U, and people are having trouble understanding 7/8 cards +HS and even just 1PSU in 4U?

you can fit a full sized PC in 4U..
in a full length PC, you probably be able to have 2, maybe 3 cards length ways, but thats not the issue..

A S1 board is about 155 mm high, 4U rack unit is 177 mm high.
i cannot find the width of the heatsinks for the antminers so i'll use the dimensions of the 120mm fan, and the 2 sinks facing it, so each heatsink is approx 60mm, but the Rack unit is 465 mm in width so thats ~7 cards with sinks and breathing room.

Adding a single atx PSU, thats 90mm less space, so about 2 cards less.
these server cases are about 1000mm long each antminer unit is 300mm long, with fan.

so you can fit rows of boards in, one row will be 2 less for a single PSU, but thats 7 cards x 2 rows, plus another 5 more cards next to the PSU.
but are we looking for a backplane that sits at the base of the case and have multiple cards sitting side by side and layered?

my idea on how I would do a case'n'controller:

open face, with blank brackets thats 40mm long 170mm high (4U case) you could fit 11 cards right across the face, each card slot has nylon rails, backplane with power connection and usb. behind the backplane is HP style redundant PSUs. next to them, $50 atom itx motherboard, with whatever OS you want. Why ITX motherboard? im over trying to configure RPis or tl-wr702n's.

Damn you Luke! Thanks for the nostalgia!

Now where's my old 286...

Powerpeg: http://tem-products.com/index.php/thermal-connectors/power-peg.html
its basically a round bit of copper, that sits though a 2.5mm hole in the board, that the ground/thermal pad of them QFP can solder onto, and since its a full chunk of copper over via holes thats been plated with 2uM of copper, to pass heat though and you can screw a heatsink directly to it. its been around for a few years now, I even pulled it up in the hardware section here to ask why no one thats manufacturing miners with thermal vias are using it.


i would assume you are using power wires off the PSU directly.

Mini-PCIe in laptops do, many wifi cars use the usb protocol over the pcie bus. hell, used it for my old EEEPC701 mods, put 32GB of flash memory on it (via hub and 4x8GB drives).

I was wrong with the power throughput Via the bus only, its 75W, not 175W. about page 35 has the power requirements on the bus.
http://read.pudn.com/downloads166/ebook/758109/PCI_Express_CEM_1.1.pdf

if I was going to use it to power a Rpi, almost unnecessary, same if I used the same system for data and power, but if I have a PSU seperate from the system, like a laptop, I may need to chop something, i don't know. But I don't think 5V won't harm it may keep a led lit up on the system. just as long as you plug the data in 1st, then plug the PSU in, whilst its off. When every connection is secure, power on the PSU then the laptop. then when everything is evened out, plug the miners in.

If I was going to chop anything, it would be the 5V from the host, since the psu power is what is feeding the miners and the Hub chipsets.

As for the filter caps, I'd have to find some thats 5+v and about 1000nF and mount them the wrong way

"rip the chips off" ? are you glueing on the HS? most heasinks have thermal gel, or thermal pads between the chip and sink, then its bolted down to a flex plate or secondary heatsink, or sometimes just machine screws holding onto the PCB.

I have an old heatsink that held onto 10 audio amps and is 30cm/12in long. it never warped due to the 80 odd degrees Celsius of thermal input.
the only way them heatsinks warp, is incorrect installation. Using the PCB to hold 1KG of heatsink whilst dangling it in-font of a fan board flexes off the sink. I'm thinking of the RK-Box that did this.

also still surprised no one wants to use the powerpeg style heatisnk..


the PCIe hardware is only designed for 175W. and I have a pet peeve of companies using "Standard" hardware with non-standard layouts. There will be a stupid person attempting to plug a video card in and go "LOL mah vidz card makes fire! I sue yooou!".. and also could lead to the PCISIG suing the company misusing their hardware.
 
now if there was data throughput via PCIe lanes, thats a complete different dev path again..
Hell, I'm not sure if it was just the mini-PCIe (laptop card slots) that only had USB lanes, or if the full sized PCIe does as-well.

the board I'm referring to is the panel there with the 30 comapcs ready to break apart.
not thinking straight, 10 board, with 30 compacs (where i 'prolly pulled the number 30 from) etc, etc..

yes, 10%.. but 30 (the sticks per board) X11 ( the 10 more boards, +1 with the one pictured now) = 330 covers the 314 that's been ordered..

unless you want to say 300 more Sticks to past and steady hand the components on, yes..

And in that picture, is just a hair shy of 1% ordered. And yeah, it looks hand cooked too, I can see the darkening of the PCBs down the middle.
Only 30 more boards to process!

looking at the footprint, yet another different layout Again! at least this one looks a little more logical! no more odd blocks and tracks to throw the VCC in.. buuut still have to physically see it it might still bee some odd block for the power..

AW YEAH!

Nice, I'll be waiting! could just do a normal thumb drive test, same results.

yeah, it was just a thought I might throw at you.. The only other thing other then the U3, I had that was stringed and directly to a CP2012 was them Zeus branded chips for s-crypt mining. everything else used a controller.

(we have come a long way here, 81st page and this is the 1601st post, I remember coming in here half reading everything and demanding pictures!)

So the Y cable is a "Only power" and "data" plugs?

Yep, as I said, different footprint. just like the Pentium3 mobile to the pentium 3 desktop, I was thinking of a converting pcb between the main pcb to the chip.


so there is a communication protocol change too. The power plane pads are just the power pins condensed, the comm pins are basically the same, just except in different areas.

but as you said, the U3 code can't enumerate the stringed chips.

I've been thinking, what's the difference other then the footprint, between the BM1382 and the BM1384? if i was to deadbug a 84 to a 82 footprint, would it work?

since you're using a U3 code to run a 84 chip, and the U3 uses 82 chips, I had a thought to scratch up an adaptor board for the U3 to link the footprint of the BM1382 to the footprint of the BM1384.. But it cant be wire to wire compatible, can it?

just like the old Pentium 3M mobiles to the P3 desktop sockets..

.. So yeah, you interested?


no problem, confirmed.

i shrunk them with bbcode, right click and "view image" should show the full size

So going by this:

I've restated this idea, stripping all the old wires off, going to resolder these wires to each port (yes yes, its a 7 porter, I'm only using the 5 on this side)


I start off with stripping out the wires in the molex needed to connect to the 5 wires.


Starting the solder onto the Positive side to the USB jacks.


Finalising the soldering to each point. and as you can see, the 5 wires are now joined to the pin at the Molex plug.


Moving on to solder on the Negative to the Earth pins and casing


The final product:


Shall we see if it smokes?


Well, Power light is on, so that must mean something Right? RIGHT?!

Well, the maximum rating by the documents with the BM1384 is 400MHz, so anywhere outside the factory tests ate unknown territory (probably people have pushed them well beyond this)

But hey, I know nothing about these chips..

But more photos coming up!

There is an option of getting these Male to Female adaptors, splitting the plastic off, and with the 5V lines, solder in 1 Molex adaptor.