Has anyone managed to get more than 8 GPUs working reliably on any system at all? Linux or windows?
yes, 10GPU on Windows abd 18GPU on Linux
Topic: CCminer(SP-MOD) Modded NVIDIA Maxwell / Pascal kernels. - page 912. (Read 2347659 times)
PCIe SLOT SPLITTER--
They go for $35-40 now. It is powered, and the graphic cards must be also by a powered USB riser and possibly a PCIe power line depending on the graphic card model.. There are models of this splitter card that sell for more than the price of a motherboard, too. Good luck! --scryptr
They go for $35-40 now. It is powered, and the graphic cards must be also by a powered USB riser and possibly a PCIe power line depending on the graphic card model.. There are models of this splitter card that sell for more than the price of a motherboard, too. Good luck! --scryptr
Something like: http://amfeltec.com/products/flexible-x4-pci-express-4-way-splitter/
YES--
The model(s) that you link are priced per quote only. I am sure that you could get a refund if they didn't work. Get the cheap ones off of Amazon, you can get a refund that way. --scryptr
I've tried searching for some, but can't main one down, maybe i'm using rong key words, if you have a link , i'd be grateful.
Now this brings forward an interesting topic, a while back when we could still really mine BTC with GPUs , windows 7 had a 4 GPU limit, is there a way around this? Has anyone managed to get more than 8 GPUs working reliably on any system at all? Linux or windows?
PCIe SLOT SPLITTER--
They go for $35-40 now. It is powered, and the graphic cards must be also by a powered USB riser and possibly a PCIe power line depending on the graphic card model.. There are models of this splitter card that sell for more than the price of a motherboard, too. Good luck! --scryptr
They go for $35-40 now. It is powered, and the graphic cards must be also by a powered USB riser and possibly a PCIe power line depending on the graphic card model.. There are models of this splitter card that sell for more than the price of a motherboard, too. Good luck! --scryptr
Something like: http://amfeltec.com/products/flexible-x4-pci-express-4-way-splitter/
YES--
The model(s) that you link are priced per quote only. I am sure that you could get a refund if they didn't work. Get the cheap ones off of Amazon, you can get a refund that way. --scryptr
PCIe SLOT SPLITTER--
They go for $35-40 now. It is powered, and the graphic cards must be also by a powered USB riser and possibly a PCIe power line depending on the graphic card model.. There are models of this splitter card that sell for more than the price of a motherboard, too. Good luck! --scryptr
They go for $35-40 now. It is powered, and the graphic cards must be also by a powered USB riser and possibly a PCIe power line depending on the graphic card model.. There are models of this splitter card that sell for more than the price of a motherboard, too. Good luck! --scryptr
Something like: http://amfeltec.com/products/flexible-x4-pci-express-4-way-splitter/
POWERED USB RISERS--
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
curious......on the usb side, what would be the results of me adding one of those hubs and tring to run 8 GPUs off pcie ?
PCIe DAUGHTER HUB/SPLITTER--
I've been asked this before, if we are talking about the same thing. I purchased a 1 PCIe-to-4 PCIe board, it worked for GTX 500 series and below. I could not get it to work with GTX 700 series nor any AMD cards. There is a picture of one of the boards several pages back. However, a simple USB hub would not work, the circutry could not handle the information from multiple cards on one line. --scryptr
PCIe SLOT SPLITTER--
They go for $35-40 now. It is powered, and the graphic cards must be also by a powered USB riser and possibly a PCIe power line depending on the graphic card model.. There are models of this splitter card that sell for more than the price of a motherboard, too. Good luck! --scryptr
What i use on all my rigs. I use H81 boards in all the rigs but not using the extra voltage inputs on the mobo. Just powered USB raisers split up on two separate rails from the psu. Overkill but also bulletproof = good night sleep 
I have pretty much the exact same config.
I am no expert in this psu/riser stuff but I read that when using the daisy chain power molex connectors to never use more than 2 connecting for power.
Something about they are not designed to have a lot of power running through them.
Something about they are not designed to have a lot of power running through them.
I put 2 cards max per chain on both molex and sata even if I have to use those cheap converters.
With 3 cards on a chain mining something power hungry I noticed the chain heated up quite a bit with unpowered cards.
I am no expert in this psu/riser stuff but I read that when using the daisy chain power molex connectors to never use more than 2 connecting for power.
Something about they are not designed to have a lot of power running through them.
Something about they are not designed to have a lot of power running through them.
What i use on all my rigs. I use H81 boards in all the rigs but not using the extra voltage inputs on the mobo. Just powered USB raisers split up on two separate rails from the psu. Overkill but also bulletproof = good night sleep
POWERED USB RISERS--
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
curious......on the usb side, what would be the results of me adding one of those hubs and tring to run 8 GPUs off pcie ?
PCIe DAUGHTER HUB/SPLITTER--
I've been asked this before, if we are talking about the same thing. I purchased a 1 PCIe-to-4 PCIe board, it worked for GTX 500 series and below. I could not get it to work with GTX 700 series nor any AMD cards. There is a picture of one of the boards several pages back. However, a simple USB hub would not work, the circutry could not handle the information from multiple cards on one line. --scryptr
I put unpowered cards only in x16 slots. Anything going through an x1 slot & riser (ever a powered riser)
should have direct power connections on the card.
should have direct power connections on the card.
Powered USB-type risers do not have the input PCIe power pins connected, they have an external power port on the riser itself, usually a SATA or MOLEX connector. This way, both riser and card get all power feeding directly from the PSU, and nothing out of the motherboard.
These risers kill 2 birds with one stone:
You're not using high power over a flat ribbon cable - which is a serious fire hazard btw -, and you're not using power off the motherboard PCIe slots, so you can use whatever motherboard you want, and not just the specialty flavors. In both aspects, it is much better (and safer) to have all power drawn straight off the PSU.
Motherboards with extra PCIe power are a waste in my mind, since you cannot fill-up all PCIe slots without using risers. And as soon as you need to use risers, go with powered ones, or go home.
-Faster neoscrypt on compute 5.0 cards.
1.5.70(sp-MOD) is available here: (3-oct-2015)
https://github.com/sp-hash/ccminer/releases/
The sourcecode is available here:
https://github.com/sp-hash/ccminer
please test and report hashrates.
gtx 750 1gb 1500/1600, win7x64, forceware 353.30
neoscrypt 199kh/s (-i 14.5, gpu mem usage 807mb, mem controller load 33-37%, without -i the same
)quark 6300kh/s (-i 22.9)
lyra2v2 4440kh/s (-i 19 slightly better then default)
[...] 750Ti without power, steel risers burn through 12+ volts[...]
Of course they do... Those risers are not made for high power cards.The very worst card for such risers, is the 750/750TI without external power, as the card is entirely powered from PCIe, but even with externally powered cards, those risers are known to fry quite frequently.
Were you lucky enough to not get any damage beyond the risers themselves?
The asus rock BTC h61 or h81 has 2 extra power slots.
4 pin=150W (this is standard on all motherboards)
4 pin * 2= 300 (use two seperate cables)
total of 450W
No need for powered risers with 6 750ti.
That doesn't matter in this case because not the motherboard burned but the riser itself so it will do so regardless of mobo. Unless you use cards with additional power connectors as said earlier by myagui.
Does a USB riser actually use USB protocol or is it a straight replacement for the ribbon cable?
They are just a replacement for the ribbon cable for the sole purpose of connecting the parts and it's not using USB protocol. USB (cable) is just much more relieable, durable, flexible, it's shielded, cheap and convenient because it has a connection interface so all the parts of a riser isn't just soldered together into one mess.
I put unpowered cards only in x16 slots. Anything going through an x1 slot & riser (ever a powered riser)
should have direct power connections on the card.
[...] 750Ti without power, steel risers burn through 12+ volts[...]
Of course they do... Those risers are not made for high power cards.The very worst card for such risers, is the 750/750TI without external power, as the card is entirely powered from PCIe, but even with externally powered cards, those risers are known to fry quite frequently.
Were you lucky enough to not get any damage beyond the risers themselves?
The asus rock BTC h61 or h81 has 2 extra power slots.
4 pin=150W (this is standard on all motherboards)
4 pin * 2= 300 (use two seperate cables)
total of 450W
No need for powered risers with 6 750ti.
That doesn't matter in this case because not the motherboard burned but the riser itself so it will do so regardless of mobo. Unless you use cards with additional power connectors as said earlier by myagui.
Does a USB riser actually use USB protocol or is it a straight replacement for the ribbon cable?
They are just a replacement for the ribbon cable for the sole purpose of connecting the parts and it's not using USB protocol. USB (cable) is just much more relieable, durable, flexible, it's shielded, cheap and convenient because it has a connection interface so all the parts of a riser isn't just soldered together into one mess.
POWERED USB RISERS--
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
curious......on the usb side, what would be the results of me adding one of those hubs and tring to run 8 GPUs off pcie ?
PCIe DAUGHTER HUB/SPLITTER--
I've been asked this before, if we are talking about the same thing. I purchased a 1 PCIe-to-4 PCIe board, it worked for GTX 500 series and below. I could not get it to work with GTX 700 series nor any AMD cards. There is a picture of one of the boards several pages back. However, a simple USB hub would not work, the circutry could not handle the information from multiple cards on one line. --scryptr
Does a USB riser actually use USB protocol or is it a straight replacement for the ribbon cable?
USB RISER--
A USB riser has circuitry on the board that mounts the extended PCIe slot in which the card fits, this circuitry converts the signal. --scryptr
EDIT: As a comparison, look at this product by ASRock, a PCIe PRO riser, that uses dual SATA cables and a power cable that draws from the PCIe 1x connection. It is claimed to be faster because there is no conversion circuitry. There is apparently a separate line for each gold finger in a PCIe 1x connection. A link below:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813998015
--scryptr
POWERED USB RISERS--
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
curious......on the usb side, what would be the results of me adding one of those hubs and tring to run 8 GPUs off pcie ?
PCIe DAUGHTER HUB/SPLITTER--
I've been asked this before, if we are talking about the same thing. I purchased a 1 PCIe-to-4 PCIe board, it worked for GTX 500 series and below. I could not get it to work with GTX 700 series nor any AMD cards. There is a picture of one of the boards several pages back. However, a simple USB hub would not work, the circutry could not handle the information from multiple cards on one line. --scryptr
Does a USB riser actually use USB protocol or is it a straight replacement for the ribbon cable?
POWERED USB RISERS--
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
curious......on the usb side, what would be the results of me adding one of those hubs and tring to run 8 GPUs off pcie ?
PCIe DAUGHTER HUB/SPLITTER--
I've been asked this before, if we are talking about the same thing. I purchased a 1 PCIe-to-4 PCIe board, it worked for GTX 500 series and below. I could not get it to work with GTX 700 series nor any AMD cards. There is a picture of one of the boards several pages back. However, a simple USB hub would not work, the circutry could not handle the information from multiple cards on one line. --scryptr
POWERED USB RISERS--
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
Powered USB risers cost about the same as the cheap and dangerous flat-cable risers picured a few posts back. They power each card with a 4-pin MOLLEX or SATA adapter, not to the PCIe port, but to the goldfingers of the card, just like the motherboard slots.
They are more safe, and the USB cable is more flexible. --scryptr
P.S. SP_ release dot 70 mines Neoscrypt at 340kh/s on my GTX 960, rather than 330-335kh/s with release dot 69. However, a very brief attempt at solo-mining failed. I'll try again later. --scryptr
curious......on the usb side, what would be the results of me adding one of those hubs and tring to run 8 GPUs off pcie ?
-Fixed neoscrypt solo mining(Tnelson)
-Stop mining on disconnect's to save power.(pallas / flipclip)
-Faster lyra2v2 on compute 5.2 cards.
-Faster neoscrypt on compute 5.0 cards.
-Fixed neoscrypt on gtx 950 and gtx 980ti cards.
1.5.70(sp-MOD) is available here: (3-oct-2015)
https://github.com/sp-hash/ccminer/releases/
The sourcecode is available here:
https://github.com/sp-hash/ccminer
please test and report hashrates.
-Stop mining on disconnect's to save power.(pallas / flipclip)
-Faster lyra2v2 on compute 5.2 cards.
-Faster neoscrypt on compute 5.0 cards.
-Fixed neoscrypt on gtx 950 and gtx 980ti cards.
1.5.70(sp-MOD) is available here: (3-oct-2015)
https://github.com/sp-hash/ccminer/releases/
The sourcecode is available here:
https://github.com/sp-hash/ccminer
please test and report hashrates.
nice work SP with this version i get with my msi 970 10660 on lyra2v2
i sent you some vtc bears
best regards
-Fixed neoscrypt solo mining(Tnelson)
-Stop mining on disconnect's to save power.(pallas / flipclip)
-Faster lyra2v2 on compute 5.2 cards.
-Faster neoscrypt on compute 5.0 cards.
-Fixed neoscrypt on gtx 950 and gtx 980ti cards.
1.5.70(sp-MOD) is available here: (3-oct-2015)
https://github.com/sp-hash/ccminer/releases/
The sourcecode is available here:
https://github.com/sp-hash/ccminer
please test and report hashrates.
@sp .... Will it reconnect after a disconnect? ( Stop mining on disconnect's to save power)-Stop mining on disconnect's to save power.(pallas / flipclip)
-Faster lyra2v2 on compute 5.2 cards.
-Faster neoscrypt on compute 5.0 cards.
-Fixed neoscrypt on gtx 950 and gtx 980ti cards.
1.5.70(sp-MOD) is available here: (3-oct-2015)
https://github.com/sp-hash/ccminer/releases/
The sourcecode is available here:
https://github.com/sp-hash/ccminer
please test and report hashrates.
thx
Yes it should. At least it does for me when I implemented it :-)
-Fixed neoscrypt solo mining(Tnelson)
-Stop mining on disconnect's to save power.(pallas / flipclip)
-Faster lyra2v2 on compute 5.2 cards.
-Faster neoscrypt on compute 5.0 cards.
-Fixed neoscrypt on gtx 950 and gtx 980ti cards.
1.5.70(sp-MOD) is available here: (3-oct-2015)
https://github.com/sp-hash/ccminer/releases/
The sourcecode is available here:
https://github.com/sp-hash/ccminer
please test and report hashrates.
@sp .... Will it reconnect after a disconnect? ( Stop mining on disconnect's to save power)-Stop mining on disconnect's to save power.(pallas / flipclip)
-Faster lyra2v2 on compute 5.2 cards.
-Faster neoscrypt on compute 5.0 cards.
-Fixed neoscrypt on gtx 950 and gtx 980ti cards.
1.5.70(sp-MOD) is available here: (3-oct-2015)
https://github.com/sp-hash/ccminer/releases/
The sourcecode is available here:
https://github.com/sp-hash/ccminer
please test and report hashrates.
thx
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