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Alternate cryptocurrencies => Mining (Altcoins) => Topic started by: Za1n on September 23, 2016, 09:16:25 AM



Title: Question on PCI-E USB Powered Risers VER #
Post by: Za1n on September 23, 2016, 09:16:25 AM
I am looking at making a purchase of a dozen or so of these, and noticed they seem to have different versions as shown in the images below. My question is does this VER # have any difference on quality, as in VER 005 is later and perhaps better (or worse) than VER 003?

Looking at the USB Risers I currently have, most are the Ver 003, with even a few are Ver 002. I have one or two of each, out of dozens that are bad, so I am interested if anyone has any experience with this. Obviously looking to find the best quality ones I can get. The price seems to be mainly differentiate between the USB cable lengths more than the version of the board, so just looking for something I can key off of while making my selection.

Thanks!

https://i.imgur.com/FvPb2xw.jpg

https://i.imgur.com/9ej0RZu.jpg



Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: robertkedves on September 23, 2016, 02:13:56 PM
You could buy the VER003 just to be sure, and maybe a couple of VER005s to test them.

I have VER003 and they are working excellent.

About VER005 what the producers are saying:
- high quality (what it means?)
- safer, more efficient and more practical (if is increasing the hashpowers is incredible, but i doubt it)
- graphic cards are more stable on power supply security (never had any problems with the older version)
- etc.

Let me know if you bought the ver005 .

Good luck,


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 23, 2016, 02:23:25 PM
I've run just about every riser version out there, and beyond the color of the PCB and the PCI slot locking connector, I've found that they all perform almost exactly the same.  The v3 you show there has that tantalizing 6-Pin PCIe though-hole on it, but PCIe doesn't provide 5v so it would never have worked anyway - so while they've made tweaks like that, nothing else seems to have changed to me.

Personally I like the black ones, but only because I like the way they look... And I also would highly recommend buying different cables - while the boards have worked flawlessly for me, the cables have proven to be unreliable.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: navydude on September 23, 2016, 02:31:21 PM
Are you buying 2.0 or 3.0 usb cables for replacement?


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: xxcsu on September 23, 2016, 03:49:45 PM
Im using VER003 (green PCB) and VER006 (black PCB) for all my builds .

VER003 arrived with 24 inch blue USB cable
VER006 with 20 inch black USB cable

VER003 have a M193 G1084-33 voltage regulator
VER006 have a FS1084 voltage regulator

Both regulators have On-chip thermal shutdown protection( provides protection against any combination of overload and ambient temperature that would create excessive junction temperature )

In the past few months i had to replace only one riser ( VER 006 ) , i had no time to check what was the problem , maybe just a USB cable .

http://beszeljukmeg.com/ETH/risers.JPG


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 23, 2016, 05:06:54 PM
Are you buying 2.0 or 3.0 usb cables for replacement?

USB 3.0; these are the exact cables I use:

http://amzn.to/2dnlAeb

I use them in all my builds, and haven't had an issue yet - I use slightly longer than normal because of how I position the cards relative to the motherboard, but I'm sure they also have smaller ones from the same manufacturer:

http://www.analogx.com/images/gpu/dsc00130s.jpg




Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: xxcsu on September 23, 2016, 05:32:16 PM
Nice builds :-)
I see on the picture you have plugged display emulator, or dummy plug for all your graphics card .
May I ask ... in one setup why not just using one a display emulator connected to one card ? and leave the another 5 dummy plug free ? :-)


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 24, 2016, 03:20:55 AM
Nice builds :-)
I see on the picture you have plugged display emulator, or dummy plug for all your graphics card .
May I ask ... in one setup why not just using one a display emulator connected to one card ? and leave the another 5 dummy plug free ? :-)

heheh, they're not really needed, but without them I can't get the temps in OpenHardwareMonitor... Normally I could hook them up and then disable them in windows, but with the RX470 if you disable the display then ATI now disables the temp data (thanks for that), so I may end up going back to using them like everyone else.  ;)


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Za1n on September 24, 2016, 04:08:16 AM
Im using VER003 (green PCB) and VER006 (black PCB) for all my builds .

VER003 arrived with 24 inch blue USB cable
VER006 with 20 inch black USB cable

VER003 have a M193 G1084-33 voltage regulator
VER006 have a FS1084 voltage regulator

Both regulators have On-chip thermal shutdown protection( provides protection against any combination of overload and ambient temperature that would create excessive junction temperature )

In the past few months i had to replace only one riser ( VER 006 ) , i had no time to check what was the problem , maybe just a USB cable .


Thanks for the feedback, this is the type of information I was hoping for. I will look into the VER 006, as only so far have seen up to VER 005 boards.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Za1n on September 24, 2016, 04:12:10 AM
Are you buying 2.0 or 3.0 usb cables for replacement?

USB 3.0; these are the exact cables I use:

http://amzn.to/2dnlAeb

I use them in all my builds, and haven't had an issue yet - I use slightly longer than normal because of how I position the cards relative to the motherboard, but I'm sure they also have smaller ones from the same manufacturer:

http://www.analogx.com/images/gpu/dsc00130s.jpg




Nice rig! Thanks for the information on the bad USB cables. It never occurred to me these might go bad, although now in hindsight it seems obvious. I will need to re-check my "bad" ones now with new cables.

I am also interested the HDMI dummy plugs you are using. Do you have a link or preferred vendor for those? Thanks!


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 24, 2016, 04:18:53 AM
Nice rig! Thanks for the information on the bad USB cables. It never occurred to me these might go bad, although now in hindsight it seems obvious. I will need to re-check my "bad" ones now with new cables.

I am also interested the HDMI dummy plugs you are using. Do you have a link or preferred vendor for those? Thanks!

I've used two different dummy plugs:

http://amzn.to/2doy7xV

and

http://www.ebay.com/itm/191567271934?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

TBH I really can't tell the difference between the two - I mostly use the eBay ones because if you buy 20 or more he'll do $11/each, but the Amazon one is Prime so if I f-up and need one I can get it from them fast.

On the USB cable side of things, I was lucky (?) that I had some early failures with the ones that they shipped with, but worked fine with quality cables.  The power cable looked like a bad idea from the start, so I didn't use those just because I knew some cards pull down some serious juice and I wanted miner-grade cables.  I purchase all my cables from sidehack here on the forum, and would recommend you consider them as well - his prices are great and the quality is exceptional.  People often overlook power cables, or think when they buy some high end gaming PSU or whatever that they're getting good cables, but they're not.  None of them are really designed to run 24x7 like a miner does, which is why I don't mess around with ones that weren't made for mining.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 25, 2016, 10:54:57 PM
Check out this guys for sale post and the picture of the riser:

https://bitcointalk.org/index.php?topic=1622732.0

Pretty interesting, this is the first time I've actually seen one populated to make the 6-pin PCI connector work... I tried searching to find where to get these from, but no luck.  At the price he's listed them for it's not a cost effectively solution (with international shipping), especially considering the price of sidehacks new board:

https://bitcointalk.org/index.php?topic=1627191.0


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: supersonic on September 28, 2016, 01:03:39 AM
Check out this guys for sale post and the picture of the riser:

https://bitcointalk.org/index.php?topic=1622732.0

Pretty interesting, this is the first time I've actually seen one populated to make the 6-pin PCI connector work... I tried searching to find where to get these from, but no luck.  At the price he's listed them for it's not a cost effectively solution (with international shipping), especially considering the price of sidehacks new board:

https://bitcointalk.org/index.php?topic=1627191.0

yeah so i was searching for some time and found it actualy those are not so expensive, altho i dont think those will work straight with pci-e 12v as they power them via sata for 5 and 12v unless im wrong. Figure it out as You know better and let me know :>
there You go https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html (https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html)


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 28, 2016, 02:18:20 AM
yeah so i was searching for some time and found it actualy those are not so expensive, altho i dont think those will work straight with pci-e 12v as they power them via sata for 5 and 12v unless im wrong. Figure it out as You know better and let me know :>
there You go https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html (https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html)

Wow, I bow before your Google skills!  ;)  If you actually look at the board, you can see that they've actually populated a bunch of the unused spaces on the riser, so I think it's pretty safe to say that they're doing the 12v -> 5v stepdown on the riser.

I found a slightly different version that I liked a bit more and shot them an email to get some to do some testing with... I'm not certain that I like it better than sidehack's solution, but it's certainly worth evaluating.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: arielbit on September 28, 2016, 02:44:11 AM
i'd like to add this to the equation..

it is better to use a version or a riser board with "holes" at the back of molex connector..because in case the molex socket get burned (already happened here), you can solder wires easily to a sata (male) or molex (female) socket adaptor.

in other words, that "holes" are directly connected to ground, 5v and 12v connections.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: supersonic on September 28, 2016, 08:09:28 AM
yeah so i was searching for some time and found it actualy those are not so expensive, altho i dont think those will work straight with pci-e 12v as they power them via sata for 5 and 12v unless im wrong. Figure it out as You know better and let me know :>
there You go https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html (https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html)

Wow, I bow before your Google skills!  ;)  If you actually look at the board, you can see that they've actually populated a bunch of the unused spaces on the riser, so I think it's pretty safe to say that they're doing the 12v -> 5v stepdown on the riser.

I found a slightly different version that I liked a bit more and shot them an email to get some to do some testing with... I'm not certain that I like it better than sidehack's solution, but it's certainly worth evaluating.
Yeah i noticed those, but im green as for electronics so had no idea if it is actually for stepdown to 5v. Im checking all options including sidehacks boards but since im from EU i will check those risers too. Will wait for info about them and how it goes. I just bought bunch of dps-2000bb and looking for breakout boards aswell, not that easy in EU.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Zorg33 on September 28, 2016, 09:23:26 AM
Wow, I was also looking for a riser with 12V -> 3.3V conversion.
BTW the common version with molex connector is also capable of 12V->3.3V stepdown theoretically. but I did not have time to try it.
The dissipated heat could be a problem there, escpecially with RX 470/480, because they can take 70W+ through the riser as we know (edit: blackout, sorry.).
So the dissipated heat can be a problem, because a normal riser takes about 0.5A from 5V and the IC gets to 45C degrees. So if it needs to dissipate 4 times that, then it can be a problem.

So we should find a photo where the used step down IC is identificable.
The common type has LM1084 iirc.

edit2: It seems to have some kind of switching regulator, which is much better for this application. I also asked for a quote on alibaba:)


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 28, 2016, 12:49:38 PM
Yeah, I've already ordered them so I'll have a some to play with in a few weeks, whenever they arrived.  I think they're coming DHL, but who really ever knows when ordering from over there.  ;)

I'm still not sure that this is a better option than Sidehacks board - for me I tend to run out of PCIe on my breakouts, and I suspect his is cleaner in terms of power quality (and manufacture quality).


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: BTC_ISTANBUL on September 28, 2016, 08:42:21 PM
The capacitors are important.I do not see any difference between versions.I own all the versions and they work.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 28, 2016, 11:27:10 PM
The capacitors are important.I do not see any difference between versions.I own all the versions and they work.

Take a look at the alibaba link above, these boards have different parts populated than any of the other risers I've seen, and they're power just off the 12v PCIe plug, not the 12v/5v molex plug - so there's a pretty big difference.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: BTC_ISTANBUL on September 29, 2016, 06:15:31 AM
The risers were designed for 3.9 A. When 480X series appeared they they draw 6.5 A.

So, they made like this if they increase voltage to 12 then turn it to at the riser 5 V , the wattage would remain same but the cables can carry the load safely.



Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Zorg33 on September 29, 2016, 10:15:08 AM
The risers were designed for 3.9 A. When 480X series appeared they they draw 6.5 A.

So, they made like this if they increase voltage to 12 then turn it to at the riser 5 V , the wattage would remain same but the cables can carry the load safely.



No, that is incorrect.
The 99% of the power is fed from the 12V either way.
The card draws only 0.5A from 5V (stepped down to 3.3V by the 1084 IC on the riser)



Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 29, 2016, 12:48:10 PM
No, that is incorrect.
The 99% of the power is fed from the 12V either way.
The card draws only 0.5A from 5V (stepped down to 3.3V by the 1084 IC on the riser)

In practice I've seen that most cards pull about 1a 5v normally, with peak demand sometimes going to 2a.  This is from my test rig, which is a 6 card system (the displays are purely from the molex side power demand):

http://www.analogx.com/images/gpu/dsc00072s.jpg


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: asbator on September 29, 2016, 06:17:21 PM
What do You think about this riser? :)

http://www.wulkancen.pl/szablon/abc/tasmy/RiserUSB3.01x16x%201.jpg
http://www.wulkancen.pl/szablon/abc/tasmy/RiserUSB3.01x16x%202.jpg
http://www.wulkancen.pl/szablon/abc/tasmy/RiserUSB3.01x16x%203.jpg

Donno why [img] doesn't work but they have sata -> fdd power cables :)


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 29, 2016, 07:13:16 PM

I'm not a fan of those, I suspect the FDD pins don't handle enough constant power to make it a good idea... Even the normal 4 pin molex connector is a bit questionable with some of these high demand cards, like the reference RX 480's.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Zorg33 on September 29, 2016, 07:30:24 PM
The capacitors are important.I do not see any difference between versions.I own all the versions and they work.

there is difference between the caps, even though you don't see it.
The earlier version has 100 uF caps, and the newer has 270 uF caps.
In practice it does not mean much, they are just filtering caps there. I have risers from V2, V3, V5, V6 and all work perfectly.
The quality and the shielding of the USB 3.0 cable is much more important.


@asbator
They are only good if you solder the wires directly onto the pins of the floppy connector, otherwise it's gonna burn.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: charles2k on September 29, 2016, 11:38:19 PM
yeah so i was searching for some time and found it actualy those are not so expensive, altho i dont think those will work straight with pci-e 12v as they power them via sata for 5 and 12v unless im wrong. Figure it out as You know better and let me know :>
there You go https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html (https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html)

Wow, I bow before your Google skills!  ;)  If you actually look at the board, you can see that they've actually populated a bunch of the unused spaces on the riser, so I think it's pretty safe to say that they're doing the 12v -> 5v stepdown on the riser.

I found a slightly different version that I liked a bit more and shot them an email to get some to do some testing with... I'm not certain that I like it better than sidehack's solution, but it's certainly worth evaluating.

It is this version?
https://www.alibaba.com/product-detail/PCI-E-x1-to-x-16_60536973971.html


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Tmdz on September 30, 2016, 06:11:57 AM
I have all v005 and v006 on the ones I have, they all work exactly the same.

Sweet pics of that farm, that is a crazy amount of money invested there.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: asbator on September 30, 2016, 06:39:09 AM
The capacitors are important.I do not see any difference between versions.I own all the versions and they work.

there is difference between the caps, even though you don't see it.
The earlier version has 100 uF caps, and the newer has 270 uF caps.
In practice it does not mean much, they are just filtering caps there. I have risers from V2, V3, V5, V6 and all work perfectly.
The quality and the shielding of the USB 3.0 cable is much more important.


@asbator
They are only good if you solder the wires directly onto the pins of the floppy connector, otherwise it's gonna burn.

Thank you Zorg. Do you mean cuting of SATA connector? My PSU has 2 FDD connectors, so i can use them directly and test it.
Burning cable doesn't damage GPU ???


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on September 30, 2016, 09:54:23 AM
It is this version?

Yup, that's the one - I liked the fact that the USB cable comes out the back (they have all 3 orientations, and you can get whichever one you want).  Just would work better for my builds... All these places say they manufacture them, but this place actually seemed like they were.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: PVmining on September 30, 2016, 10:53:22 AM
very interesting thread!

I use a bunch of VER003 since two years and bought VER005 for some new rigs a few weeks ago.
No problems so far. I would be happy if the soldering would be look more perfect, but no restriction because of that.
Had only one VER003 that does not work out of the box.

Question:
Does anybody know how much of the power were drawn from the PCIe Slot (and in our case through the USB risers) if using some 6 PIN GPU with max 150w?
Does the GPU takes the most of the energy from the 6PIN?


@MarkAz. your rigs are looking beautiful!



Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: asbator on September 30, 2016, 12:05:22 PM
I did some research and realized that "my" super-duper riser doesn't have 5->3,3 voltage stepdown so it must be used through sata adapter.
I also found info on AMD site that excessive current draw over PCIE slot was a driver issue and was fixed.
Theoretically GPU can draw up to 5,5A that way while SATA connector can withstain just 4,5A, but real draw should be smaller now (Markaz rig shows ~3A per GPU).

With 6pin cards it will be probably around 25% more (?)


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Za1n on October 02, 2016, 09:35:54 AM
I did some research and realized that "my" super-duper riser doesn't have 5->3,3 voltage stepdown so it must be used through sata adapter.
I also found info on AMD site that excessive current draw over PCIE slot was a driver issue and was fixed.
Theoretically GPU can draw up to 5,5A that way while SATA connector can withstain just 4,5A, but real draw should be smaller now (Markaz rig shows ~3A per GPU).

With 6pin cards it will be probably around 25% more (?)

If I am interpreting the picture correctly, it looks like the cards are drawing ~3A each from the PCIe power connectors on the card from the 12V rail and another ~0.9A each from the 5V rail through the riser's Molex connectors. This seems a bit low for total card wattage power draw as these figures indicate only ~ 40 watts total draw per card.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Za1n on October 02, 2016, 09:44:50 AM
yeah so i was searching for some time and found it actualy those are not so expensive, altho i dont think those will work straight with pci-e 12v as they power them via sata for 5 and 12v unless im wrong. Figure it out as You know better and let me know :>
there You go https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html (https://www.alibaba.com/product-detail/PCI-E-1x-to-16x-mining_60509800570.html)

Wow, I bow before your Google skills!  ;)  If you actually look at the board, you can see that they've actually populated a bunch of the unused spaces on the riser, so I think it's pretty safe to say that they're doing the 12v -> 5v stepdown on the riser.

I found a slightly different version that I liked a bit more and shot them an email to get some to do some testing with... I'm not certain that I like it better than sidehack's solution, but it's certainly worth evaluating.

It is this version?
https://www.alibaba.com/product-detail/PCI-E-x1-to-x-16_60536973971.html

Those risers do look boss. Would be interested to hear how they work out. Assuming they are the real deal, if someone were to do a bulk order and would want to sell some off in the US, I would interested in acquiring a few dozen.

For now I ended up going with a narrow design that I found on ebay (seller in Texas) which has a 4-pin connector on the riser and this uses a small cable to connect to a regular molex feed. No version number on the board that I could find. I only ordered 6 to test with and installed them all before I could snap a picture. I have a second larger order coming in now that I know they work and will take a few pictures and post.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on October 02, 2016, 10:07:59 AM
If I am interpreting the picture correctly, it looks like the cards are drawing ~3A each from the PCIe power connectors on the card from the 12V rail and another ~0.9A each from the 5V rail through the riser's Molex connectors. This seems a bit low for total card wattage power draw as these figures indicate only ~ 40 watts total draw per card.

You're half right, those displays are only monitoring power being drawn over the Molex connector, so your math is correct, but that's only what it's drawing over the PCIe slot - it's pulling alot more through the 1x 6-pin and 1x 8-pin on each board.

And those numbers were generally accurate for all my R9's and GTX970 (they used a bit less), then the RX's used a bit more... So if you err on the side of caution, I would have more power than needed on the riser.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Za1n on October 02, 2016, 04:22:03 PM
If I am interpreting the picture correctly, it looks like the cards are drawing ~3A each from the PCIe power connectors on the card from the 12V rail and another ~0.9A each from the 5V rail through the riser's Molex connectors. This seems a bit low for total card wattage power draw as these figures indicate only ~ 40 watts total draw per card.

You're half right, those displays are only monitoring power being drawn over the Molex connector, so your math is correct, but that's only what it's drawing over the PCIe slot - it's pulling alot more through the 1x 6-pin and 1x 8-pin on each board.

And those numbers were generally accurate for all my R9's and GTX970 (they used a bit less), then the RX's used a bit more... So if you err on the side of caution, I would have more power than needed on the riser.


Ahh, ok thanks for clarifying. I figured it was something I was overlooking and that makes more sense. Still, only 40 watts over the PCIe slot seems quite reasonable and should be easily handled via the Molex connectors. This is good information to know as I have never been able to independently measure the different power draws (slot versus the 6 or 8-pin connectors) myself. I assume these readings are typical for most cards?


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on October 02, 2016, 06:46:45 PM
Ahh, ok thanks for clarifying. I figured it was something I was overlooking and that makes more sense. Still, only 40 watts over the PCIe slot seems quite reasonable and should be easily handled via the Molex connectors. This is good information to know as I have never been able to independently measure the different power draws (slot versus the 6 or 8-pin connectors) myself. I assume these readings are typical for most cards?

So I tested probably 4 makes of R9 390's and they all were around this; I tested one make of GTX970's and it was less, I tested 2 makes of RX480's and it was considerably more, and I tested 2 brands of RX 470 but I can't remember what they ended up - I'm pretty sure it was less than the 390's, either way it was nothing to be overly concerned about.

I need to make one mega test box, that shows power consumption for everything broken out... My next build is probably going to be a 7 slot, so maybe I'll do that as well.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Iegion on October 03, 2016, 01:16:16 AM
nice farm mark, did you build that frame yourself?


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on October 03, 2016, 07:42:45 AM
nice farm mark, did you build that frame yourself?

Yup, plus all the cables are custom from Sidehack and I also use his molex board (which is great):

https://bitcointalk.org/index.php?topic=1581985.0
https://bitcointalk.org/index.php?topic=940317.40


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Zorg33 on October 03, 2016, 02:58:31 PM
I see that in Sidehack's solution the riser's 5V is also fed from 12V. Or just the same yellow wire is used for 5V...but I doubt it, because you need color coding if you run the wires in insulation tubes.


Thank you Zorg. Do you mean cuting of SATA connector? My PSU has 2 FDD connectors, so i can use them directly and test it.
Burning cable doesn't damage GPU ???

No, I mean cutting off the floppy connector, because it's very weak for this application.





Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: MarkAz on October 03, 2016, 09:30:26 PM
I see that in Sidehack's solution the riser's 5V is also fed from 12V. Or just the same yellow wire is used for 5V...but I doubt it, because you need color coding if you run the wires in insulation tubes.

It's all fed from 6-pin PCIe 12v (your normal server breakout board), then it does the stepdown to 5v - so it's perfect for the risers.  I use them on 4 of my 6 card boxes and they work like a champ...


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Za1n on October 08, 2016, 08:13:02 PM
It look's like that Version 006C board is now available from more vendors and a bit lower priced. I ordered in a dozen, looks like it is wired the same and can take a 6-pin PCIe connector directly.

http://www.ebay.com/itm/401195513882?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: zorvalth on October 08, 2016, 09:34:14 PM
I saw HDMI dummy plugs were discussed earlier. The cheapest option is to buy some of these: http://www.ebay.co.uk/itm/291804442332 and make the popular resistor VGA mod. https://www.google.bg/search?q=vga+dummy+mod&source=lnms&tbm=isch&sa=X&ved=0ahUKEwiXgY3IlMzPAhWFWRQKHR_1CYsQ_AUICCgB&biw=1920&bih=955


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: Termie on November 26, 2016, 10:03:13 AM
@zorvalth, thanxx that is a really cheap solution. Here in GER they demand ~15 - 25 Eur per HDMI dummy, thats just exploitation IHMO.


Title: Re: Question on PCI-E USB Powered Risers VER #
Post by: calculatorduck on July 22, 2017, 02:50:46 AM
I realize this post is from last year, but no one really seems to have information on the differences in the risers. Based on the component changes is there anything wrong with the ver 003 risers? I have some and am considering using them with some GTX 1070 cards but I do'nt know if buying new ones is needed.


Im using VER003 (green PCB) and VER006 (black PCB) for all my builds .

VER003 arrived with 24 inch blue USB cable
VER006 with 20 inch black USB cable

VER003 have a M193 G1084-33 voltage regulator
VER006 have a FS1084 voltage regulator

Both regulators have On-chip thermal shutdown protection( provides protection against any combination of overload and ambient temperature that would create excessive junction temperature )

In the past few months i had to replace only one riser ( VER 006 ) , i had no time to check what was the problem , maybe just a USB cable .

http://beszeljukmeg.com/ETH/risers.JPG