Topic: Server Power Supply Interface Board - for standalone miners and GPU rigs - page 30. (Read 120730 times)
January 13, 2014, 11:58:24 AM
Had about a week's holdup with initial funding for a first batch, but we should be ordering the parts and PCBs before end of business today. Depending what happens, we should have orders opened in about ten days for the Z750P boards, and a solid design for DPS800 boards and for a several-supply control panel not too much later.
January 13, 2014, 11:51:04 AM
Where are you finding these PSU connectors? I have been looking for them for ages. Are these on digikey?
Find a backplane and ask them to send you all the numbers on the actual black connector IF ANY then search all or part of the number at digikey
Thanks guys, I have found what I have been looking for.
January 13, 2014, 11:36:46 AM
I received a couple quotes for the 6pin PCIe power cables, and forwarded the best one to sidehack. Still waiting on news from my vendors re: 51915 discussion.
January 11, 2014, 12:38:45 AM
Where are you finding these PSU connectors? I have been looking for them for ages. Are these on digikey?
Find a backplane and ask them to send you all the numbers on the actual black connector IF ANY then search all or part of the number at digikey
January 10, 2014, 09:37:49 PM
The Z750P connectors aren't, at least not in stock. I have a jerry rig solution but for the next round I'll have to order from the factory.
In the very near future I'll have boards for the DPS800 and probably that 2000W fanless supply y'all seem to like; that one will integrate a PWM fan speed controller with internal/external drive options and at least one fan header.
Manufacture on the Z750P boards has been delayed by finances, but we should start rolling them off about the end of next week or early the week after. Hopefully the boards for other supplies won't be too far behind.
In the very near future I'll have boards for the DPS800 and probably that 2000W fanless supply y'all seem to like; that one will integrate a PWM fan speed controller with internal/external drive options and at least one fan header.
Manufacture on the Z750P boards has been delayed by finances, but we should start rolling them off about the end of next week or early the week after. Hopefully the boards for other supplies won't be too far behind.
January 10, 2014, 09:12:33 PM
Where are you finding these PSU connectors? I have been looking for them for ages. Are these on digikey?
Yep, gotta dig through a hundred thousand models to find the right one
January 10, 2014, 08:57:27 PM
Where are you finding these PSU connectors? I have been looking for them for ages. Are these on digikey?
January 10, 2014, 06:31:57 PM
How do you guys divide the rails?
I hope it's only 1 rail.
January 10, 2014, 10:41:25 AM
How do you guys divide the rails?
January 10, 2014, 12:03:55 AM
whoa, shorted the pins on that dell psu, that thing sounds like a vacuum cleaner
I am starting the prototype for the Dell Z750. Which pins do I need to short? Do we have a pin diagram?
http://imgur.com/I7zWthC
January 09, 2014, 10:51:02 PM
Which is why the board gives you fan speed control.
January 09, 2014, 10:49:49 PM
whoa, shorted the pins on that dell psu, that thing sounds like a vacuum cleaner
January 09, 2014, 08:32:49 PM
IBM x3850M2 39Y7355 7141 7233 1440w Power,There 8CM fan.http://www.ebay.co.uk/itm/IBM-39Y7355-System-x3950-M2-1440W-Switching-Power-Supply-/300758977058
Wow
So you're going to solder pcie? What about the 12v sense?
January 09, 2014, 07:36:11 PM
Pretty sure they're compatible, as far as I know the differences are internal.
January 09, 2014, 07:26:15 PM
I got a N750P-S0 PSU here, it is the same as Z750P ? , looks pretty much the same, pin wise, 750W, 62.4A on the 12V
January 09, 2014, 03:34:33 PM
You can find all the info, pics and diagrams about the dps-2000bb in this thread http://www.rcgroups.com/forums/showthread.php?t=1005309&page=41
January 09, 2014, 03:27:01 PM
Quote
OR if a source can be found for a custom made 14AWG cable with PCIe pin for a direct run from distro block to GPU's.
Which is what I currently have a bid for, and should have in-hand by the time boards are ready to ship if everything works out.
Also, since these are 750W supplies instead of 2000W supplies, running a whole lot of stuff off a single supply isn't really that much of an issue. Two AntMiner S1, two AM Cubes, two or three decent GPUs per supply. I've got a DPS800 to start prototyping for, and will look into those 2000W supplies as well, so it'll need to be a consideration in the future for sure.
January 09, 2014, 03:23:10 PM
The distro block is built into these boards. The simplest solution is to run a cable from there straight to the device; that saves connections and adapters and stuff. If you need to power a few hundred devices, wrangling exactly one wire per device is a whole lot easier and that's currently what we're looking at.
I'll probably focus on making 16AWG available alongside the boards once everything's ironed out.
I'll probably focus on making 16AWG available alongside the boards once everything's ironed out.
*OOps I was forgetting the fact that there are 3 x 2 12V lines running to each GPU, so disregard my earlier comments, just go with 16AWG and be happy. Adding up the 6 12V lines that run to each GPU means the total diameter is about equal to running between a 0 and 1AWG cable to each card. So if you wanted you can run over 20' with very little drop in voltage.
Looking at the numbers again 18AWG (x6 per GPU) is equivalent to running between 2 and 3AWG cable so even it is more than sufficient for up to at least 10'
January 09, 2014, 03:09:27 PM
The distro block is built into these boards. The simplest solution is to run a cable from there straight to the device; that saves connections and adapters and stuff. If you need to power a few hundred devices, wrangling exactly one wire per device is a whole lot easier and that's currently what we're looking at.
I'll probably focus on making 16AWG available alongside the boards once everything's ironed out.
I'll probably focus on making 16AWG available alongside the boards once everything's ironed out.
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