Question on PCI-E USB Powered Risers VER #

calculatorduck

member

Activity: 93

Merit: 10

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.

Quote from: xxcsu on September 23, 2016, 10:49:45 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 .

Termie

sr. member

Activity: 642

Merit: 292

@zorvalth, thanxx that is a really cheap solution. Here in GER they demand ~15 - 25 Eur per HDMI dummy, thats just exploitation IHMO.

zorvalth

full member

Activity: 223

Merit: 100

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

Za1n

legendary

Activity: 1078

Merit: 1011

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

MarkAz

hero member

Activity: 687

Merit: 511

Quote from: Zorg33 on October 03, 2016, 09:58:31 AM

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...

Zorg33

jr. member

Activity: 144

Merit: 2

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.

Quote from: asbator on September 30, 2016, 01:39:09 AM

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 Huh

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

MarkAz

hero member

Activity: 687

Merit: 511

Quote from: Iegion on October 02, 2016, 08:16:16 PM

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://bitcointalksearch.org/topic/gauging-interest-around-some-custom-hardware-and-cabling-for-gpu-rigs-1581985
https://bitcointalk.org/index.php?topic=940317.40

Iegion

newbie

Activity: 39

Merit: 0

nice farm mark, did you build that frame yourself?

MarkAz

hero member

Activity: 687

Merit: 511

Quote from: Za1n on October 02, 2016, 11:22:03 AM

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.

Za1n

legendary

Activity: 1078

Merit: 1011

Quote from: MarkAz on October 02, 2016, 05:07:59 AM

Quote from: Za1n on October 02, 2016, 04:35:54 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.

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?

MarkAz

hero member

Activity: 687

Merit: 511

Quote from: Za1n on October 02, 2016, 04:35:54 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.

Za1n

legendary

Activity: 1078

Merit: 1011

Quote from: charles2k on September 29, 2016, 06:38:19 PM

Quote from: MarkAz on September 27, 2016, 09:18:20 PM

Quote from: supersonic on September 27, 2016, 08:03:39 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

Wow, I bow before your Google skills! Wink

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.

Za1n

legendary

Activity: 1078

Merit: 1011

Quote from: asbator on September 30, 2016, 07:05:22 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.

asbator

member

Activity: 68

Merit: 10

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 (?)

PVmining

sr. member

Activity: 330

Merit: 252

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!

MarkAz

hero member

Activity: 687

Merit: 511

Quote from: charles2k on September 29, 2016, 06:38:19 PM

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.

asbator

member

Activity: 68

Merit: 10

Quote from: Zorg33 on September 29, 2016, 02:30:24 PM

Quote from: BTC_ISTANBUL on September 28, 2016, 03:42:21 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.

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 Huh

Tmdz

hero member

Activity: 1008

Merit: 1000

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.

charles2k

sr. member

Activity: 326

Merit: 250

Quote from: MarkAz on September 27, 2016, 09:18:20 PM

Quote from: supersonic on September 27, 2016, 08:03:39 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

Wow, I bow before your Google skills! Wink

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

Zorg33

jr. member

Activity: 144

Merit: 2

Quote from: BTC_ISTANBUL on September 28, 2016, 03:42:21 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.

Topic: Question on PCI-E USB Powered Risers VER # (Read 9040 times)