Server Power Supply Interface Board - for standalone miners and GPU rigs - page 19.

mrbubl3s

sr. member

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Professional Ameteur

Do-want schematics.

JLebowskiTheDude

member

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Payment sent, sidehack! Lemme know if you need any more info.

Thanks again.

freddyfarnsworth

full member

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Quote from: sidehack on February 08, 2014, 03:01:45 PM

Not really. Someone already posted where the current share pin was on the supply, and it's also broken out to a header pin on my board. If you want to parallel multiple supplies, as far as I know all that is required is to put them on a common bus (hook the ground and 12V together) and then tie the current share pins together. The rest is internal, it should "just work".

One more tidbit for those wishing to do some more research.
They are also designed to be hot swappable in a redundant setup, with sidehacks plugings you can get that to work also, as the design is in the gold fingers length on the power plane, to be able to pull and plug without arcing, it will not power up till the new supplys power fingers are engaged. Or arc on removal, power good pin will disengage first..
You could really take the larger supplies "to the max" if wanted, 100s of amps 5000w systems possible. @12v

sidehack

legendary

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Curmudgeonly hardware guy

Not really. Someone already posted where the current share pin was on the supply, and it's also broken out to a header pin on my board. If you want to parallel multiple supplies, as far as I know all that is required is to put them on a common bus (hook the ground and 12V together) and then tie the current share pins together. The rest is internal, it should "just work".

Xer0

hero member

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°^°

Quote from: sidehack on February 08, 2014, 11:32:21 AM

If you're just paralleling you can tie the Current Share pins together and the supplies will cross-regulate to balance the current outputs evenly between several supplies, so you can get 12V stupidly-high-current without exploding anything.

can you explain that a bit more?

sidehack

legendary

Activity: 3374

Merit: 1859

Curmudgeonly hardware guy

Yep. Isolating the circuit ground from case ground/neutral means you can stack the voltages together by referencing one supply's ground to another supply's (isolated) 12V output, so measuring between one ground and the other's 12V gives you 24V without exploding anything. If you're just paralleling you can tie the Current Share pins together and the supplies will cross-regulate to balance the current outputs evenly between several supplies, so you can get 12V stupidly-high-current without exploding anything.

bitpop

legendary

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So grounding is for raising the voltage? But parallel doesn't matter?

freddyfarnsworth

full member

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Quote from: bitpop on February 08, 2014, 09:41:08 AM

Quote from: knighty1 on February 08, 2014, 06:54:21 AM

can anyone tell me the pinout / how to implement current share on the Z750P-00 ?

I use a bunch of them to charge my electric bike.... being able to parallel them up would be AWESOME!

I've googled my ass off but can't find anything useful :-(

p.s.... I'm assuming I can parallel a bunch of them without any problems yeah ?

There's something about the grounds I don't get yet

You do not need to know, it is needed info for the people using Remote Control RC cars and planes, they make chargers out of these and those threads started this info on jumping these PS for other uses long time ago.

SideHack saw the opportunity to use them for all crypto miners rigs ect, and he has done what is needed for your use.

If you "Want to know more" Read the RC threads just type in server power supply RC and you will find all the old info on jumping modding ect...

It is where I learned about them from.

Start here...
http://www.rcgroups.com/forums/showthread.php?t=1292514

bitpop

legendary

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Quote from: knighty1 on February 08, 2014, 06:54:21 AM

can anyone tell me the pinout / how to implement current share on the Z750P-00 ?

I use a bunch of them to charge my electric bike.... being able to parallel them up would be AWESOME!

I've googled my ass off but can't find anything useful :-(

p.s.... I'm assuming I can parallel a bunch of them without any problems yeah ?

There's something about the grounds I don't get yet

JLebowskiTheDude

member

Activity: 98

Merit: 10

Quote from: sidehack on February 05, 2014, 02:35:46 AM

Okay, so. We're officially opening sales for the Z750P boards at 6PM CST. The first batch will only have about 75 boards available, but when we have another stack about that size (in a few days) I'll update this again.

We're limiting it to ten boards per person this round, to make sure someone doesn't buy all of them.
Pricing is:
1-5 units - $42.50 each
6+ units - $40.00 each

We'll have some cables available, 18" 16AWG PCIe 6-pin with spades for mating to the boards' screw terminals. Cables are $3.50 apiece. I don't know how many we'll have, probably not a hundred total yet as we just got the parts in today to start generating them.

Shipping will probably be USPS Priority Medium Flat-Rate Box, unless otherwise specified and worked out with me while ordering.

Orders will be taken on a First-Come First-Serve basis; send me a PM AFTER 6PM CST with the desired number of boards and/or cables and I'll add you to the queue and work out payment details. We accept both PayPal and BTC, which the BTC price will be based off a random sampling of Coinbase's exchange rate taken sometime in the afternoon.

All order messages sent before 6PM CST according to the forum timestamp will be ignored.

PM sent!

knighty1

newbie

Activity: 3

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Quote from: ElGabo on February 08, 2014, 07:12:22 AM

It's somewhere here in this thread

oops, must have missed it, I'll read through again :-)

Quote from: freddyfarnsworth on February 08, 2014, 08:26:08 AM

That is where they isolate the PS grounds it is RC cars and planes ect, using them for charging.
Hooked in series, they build output Like a diesel truck.
The link is in this thread several places

I've already got mine up and running, charging my bike at 4kw

I'd like to parallel a bunch up, so I can run at 8kw or 12kw for charging multiple bikes at once :-)

most of the time those RC guys just use these supplies for 24v or 48v to power there balancing charger, I'm charging direct to the batteries and have a BMS to sort out the balancing etc.. :-)

EDIT: current share pin is pin A2 ... so I just tie pin A2 of each parallel supply together right ?
(this is the bit I was stuck with... what to do with that pin)

freddyfarnsworth

full member

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Quote from: ElGabo on February 08, 2014, 07:12:22 AM

Quote from: knighty1 on February 08, 2014, 06:54:21 AM

can anyone tell me the pinout / how to implement current share on the Z750P-00 ?

I use a bunch of them to charge my electric bike.... being able to parallel them up would be AWESOME!

I've googled my ass off but can't find anything useful :-(

p.s.... I'm assuming I can parallel a bunch of them without any problems yeah ?

It's somewhere here in this thread

That is where they isolate the PS grounds it is RC cars and planes ect, using them for charging.
Hooked in series, they build output Like a diesel truck.
The link is in this thread several places

ElGabo

hero member

Activity: 635

Merit: 500

Quote from: knighty1 on February 08, 2014, 06:54:21 AM

can anyone tell me the pinout / how to implement current share on the Z750P-00 ?

I use a bunch of them to charge my electric bike.... being able to parallel them up would be AWESOME!

I've googled my ass off but can't find anything useful :-(

p.s.... I'm assuming I can parallel a bunch of them without any problems yeah ?

It's somewhere here in this thread

knighty1

newbie

Activity: 3

Merit: 0

can anyone tell me the pinout / how to implement current share on the Z750P-00 ?

I use a bunch of them to charge my electric bike.... being able to parallel them up would be AWESOME!

I've googled my ass off but can't find anything useful :-(

p.s.... I'm assuming I can parallel a bunch of them without any problems yeah ?

ElGabo

hero member

Activity: 635

Merit: 500

Sorry for the crappy picture. Made with my phone.

LuxCapacitor

newbie

Activity: 36

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Got my Z750P-00's in today. Looks like I'm going to need a bigger crate.

freddyfarnsworth

full member

Activity: 238

Merit: 100

Quote from: abracadabra on February 07, 2014, 11:09:27 AM

anyone electrically isolating the case of the psu?

They were doing that to run two of em in series to get 24v, we need the case tied to ground for our use.
Even if ran redundant.

Mk2vr6

full member

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Quote from: bobsag3 on February 06, 2014, 11:45:26 PM

Porn?

Fire hazard? Shocked

Edit/ Only kidding - looking good.

abracadabra

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anyone electrically isolating the case of the psu?

ISAWHIM

hero member

Activity: 504

Merit: 500

+10 for this community-mod!

+20 for it's simplicity and potential "other" use as a general 12v, high-amp power-source!

+40 for the informative tips alone...

Topic: Server Power Supply Interface Board - for standalone miners and GPU rigs - page 19. (Read 120709 times)