Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux)

[JJ12880]

My rig show only GPU0 and GPU1 temp and fan, i have 2x 7990, under win 10, already tried all from catalyst 15.12 to 17.1(used ddu), tried all sort of config command(-asm 0, -tt 75,75,75,75 -wd 0).
I'm worried because i used the command -ttli and -tstop to protect the rig, but that seems to affect only gpu0 and gpu1, already see gpu2 and gpu3 get to 100 celsius....
Already tried miner 10.0,11.0 and 11.1
Any tips?

I got a used 7990, and it was also having heat issues. I took it apart, cleaned the old paste off, and put some high end thermal compound on it, and I got a 10 to 12c drop in temps. If its an older card, the paste does dry out and loose effectiveness.

[1715375834]

1715375834

[Corerj]

Same here, two cheap and used 7990...
Already did it in one vga, the other i will do it, but plan to use a custom watercooler block...
Until them, i"ll try software solution...

My rig show only GPU0 and GPU1 temp and fan, i have 2x 7990, under win 10, already tried all from catalyst 15.12 to 17.1(used ddu), tried all sort of config command(-asm 0, -tt 75,75,75,75 -wd 0).
I'm worried because i used the command -ttli and -tstop to protect the rig, but that seems to affect only gpu0 and gpu1, already see gpu2 and gpu3 get to 100 celsius....
Already tried miner 10.0,11.0 and 11.1
Any tips?

I got a used 7990, and it was also having heat issues. I took it apart, cleaned the old paste off, and put some high end thermal compound on it, and I got a 10 to 12c drop in temps. If its an older card, the paste does dry out and loose effectiveness.

[BogdanCo]

My rig show only GPU0 and GPU1 temp and fan, i have 2x 7990, under win 10, already tried all from catalyst 15.12 to 17.1(used ddu), tried all sort of config command(-asm 0, -tt 75,75,75,75 -wd 0).
I'm worried because i used the command -ttli and -tstop to protect the rig, but that seems to affect only gpu0 and gpu1, already see gpu2 and gpu3 get to 100 celsius....
Already tried miner 10.0,11.0 and 11.1
Any tips?

Use afterburner and undervolt the cards to 1,09V (1090mV) and you will see a big temperature drop.

[jstefanop]

So guys, I was wondering on a little more technical explanation on why the R9 280/x are so much faster at mining than the 380 series?

Is it kind of like with the RX 480 and R9 390, where (I believe) the 390 has much higher memory bus width so mines much better, even though in raw performance, the cards are very similar?

Is that the issue when comparing the 280 to the 380? Because as far as I know, in raw performance, the 380 should beat the 280 considerably, should it not? Likewise, my RX 480 beats my 390 in almost every game I test.

280/x has 384 bit memory bus...380/x has 256.

[Corerj]

Thanks man!

My rig show only GPU0 and GPU1 temp and fan, i have 2x 7990, under win 10, already tried all from catalyst 15.12 to 17.1(used ddu), tried all sort of config command(-asm 0, -tt 75,75,75,75 -wd 0).
I'm worried because i used the command -ttli and -tstop to protect the rig, but that seems to affect only gpu0 and gpu1, already see gpu2 and gpu3 get to 100 celsius....
Already tried miner 10.0,11.0 and 11.1
Any tips?

Use afterburner and undervolt the cards to 1,09V (1090mV) and you will see a big temperature drop.

[QuintLeo]

What is the sols of a typical RX470 4g?

 appx 234 per card out of my pair of Sapphire ref-style RX 470, stock BIOS some overclock and undervolt via Afterburner.

[dudee]

gigabyte 7950 v1 1050/1300 220H/s, Sapphire vapor x 280x 1100/1600 265H/s
moded bios.

[Corerj]

Already bought riser!

My rig show only GPU0 and GPU1 temp and fan, i have 2x 7990, under win 10, already tried all from catalyst 15.12 to 17.1(used ddu), tried all sort of config command(-asm 0, -tt 75,75,75,75 -wd 0).
I'm worried because i used the command -ttli and -tstop to protect the rig, but that seems to affect only gpu0 and gpu1, already see gpu2 and gpu3 get to 100 celsius....
Already tried miner 10.0,11.0 and 11.1
Any tips?

7990 auto shutdown @ 104°C anyway but if your card is getting that hot you need to rise it out of the case.

If you are already using risers then you should apply new thermal paste because I have MSI 7990 mining stable @ 69°C

Much simpler to solve the cooling issue than your question.

[jelin1984]

GPU 4, GpuMiner kx(2) failed -36

why that happen??

[oslak]

For all you unbelievables here are the results after 20 hours (look at the low rejection rate)

I also have a 7950 in another rig running at 285H/s

If you aren't getting these speeds, hack your memory straps, use 15.12 drivers, use windows 7.

The other 2 slower Tahitis are 1000mhz core clock because they are the crap Gigabyte windforce and overheat easily so I can't run them at 1100mhz, however chances are they would run at 330h/s under 1200mhz.

So the hashrate is clearly linked to engine core clock speed.

However for them to run at 1200Mhz you would need to run at stock voltage or overvolt and your power consumption would be in the Scrypt Litecoin power consumption terrority. I am talking about 300-350Watt per GPU at the wall. Not worth the extra speed boost.

Especially since the Gigabyte Windforce 7950/7970 were known to catch fire during the litecoin days.

Even at 1100 your crazy...that must be what in the 250 watt territory? I run my Tahiti's at 975 to keep them under 160 watts @ 270s/s. Don't think the extra 10-20S are worth the 50-100 watts per card. 

If power is almost free why not run it at the highest sols you can get?. I run mine also at 975, 165watts at the wall.

http://imgur.com/a/PcDdR

[daigitinasam]

Hello guys. Little help please

I run 3x470 + 2x390 system with h81 pro btc. But I lost some hashrate on the 390`s. It shows me 295 h/s with 16.9.2 driver. I tried with 16.12.2 but the system fails when load desktop. Any idea which driver will go 3xx and 4xx series and keep 350h/s for the 390`s?
https://gyazo.com/4a94a71e46c36ee0996538db1b045668

[mr.bRxXx]

gigabyte 7950 v1 1050/1300 220H/s, Sapphire vapor x 280x 1100/1600 265H/s
moded bios.

Your bios mod for 280x sucks, Sapphire 280x @ 1085/1625 = 305 H/s (Hynix), Elpida gives even more...
Stock clocks with bios mod gives ~270 H/s ...

Hello guys. Little help please

I run 3x470 + 2x390 system with h81 pro btc. But I lost some hashrate on the 390`s. It shows me 295 h/s with 16.9.2 driver. I tried with 16.12.2 but the system fails when load desktop. Any idea which driver will go 3xx and 4xx series and keep 350h/s for the 390`s?
https://gyazo.com/4a94a71e46c36ee0996538db1b045668

Put 470 card in x16 slot, and the rest 2 next in x1 slots, 390's in rest 2 slots.
Should be fine. Pay attention that "synchronize similiar cards" option doesnt work correctly on newer drivers.
Uncheck it and set each card manually.

p.s. 16.11.1 Drivers give normal speeds in Polaris/Tahiti combo's, tested.

b.r.
Alex

[BenCodie]

flypool.org went offline?

[reelen]

flypool.org went offline?

Miners are still showing hashing, but yeah site down for me as well.

[dragonchopper9]

flypool.org went offline?

Miners are still showing hashing, but yeah site down for me as well.

Check now, everything is working. For me, it was not offline.

[ffthomas]

Hi,

I have a problem if I try to connect more than 6 GPUs to my AsRock H81 Pro BTC v2.0 mobo. I bought an extender riser (PCI-E x1 -> 3*PCI-E x1) and I use normal USB3 PCI-E x1->x16 risers. Everything's  fine until I connect the 7th card. I can connect the first 6 card any way I want it but after the 7th card connected I got blank screen when I turn on the rig.

How do I make it work with 7 or 8 cards?

are you using Windows 7 perhaps? I have an 8 Card system and the only way I got them to work was with Windows 10 and Ubuntu. But it can also be the fact that your MB don't support more than 6 PCIE cards. Have you tried connecting 5 cards and one dual card? such as 7990, 295x ? I have two 7990 and 4 other cards in my 8 card system. Not using the PCI Switch.

I use Win10, but I can't get to boot the OS. I turn on the rig and nothing happens. I don't have dual cards, I use RX470 GPUs.

Maybe AsRock H81 Pro BTC v2.0 mobo doesn't support more than 6 PCI-E devices? I tried to disable integrated audio, serial ports, etc. in the bios, then connected the 7th card but also didn't work.

I don't want to buy an expensive server/workstation mobo. Is there any chance to use 7 or 8 PCI-E devices? I searched for modded bios for this mobo but didn't find anything. Or it's the limit of the H81 chipset, not the bios?

Which PCIE slot are you connecting your 1x3 card into?

It is my understanding that each GPU requires a minimum of 1 PCIE lane/pipeline to transmit data.  That means you would have to plug the 1x3 card into a slot with at least 3 lanes/pipelines (in the real world that means a 4x, 8x, or 16x slot).  The H81 Pro BTC has a single 16x slot and five 1x slots.  You could only ever run the 1x3 card on the 16x slot.

If I'm wrong on this I am open to correction.  I've actually been wanting to play around with the exact setup you describe.

I used the 1->3 extender riser in the 6th PCI-E slot (which is an x1 slot) and the 3 cards worked fine on that extender. So I think it is a limitation of bios/chipset, or not enough IRQ available?

I have a meeting I need to run to but this thread I found may have some useful information in it.  I will keep digging when I get back as well.

https://forum.ethereum.org/discussion/5195/riser-1-to-3-pci-e-1x

Edit 1:

After reading through the above thread and taking a look at Intel's specs on the h81 and z87 it would appear that the max PCIE lanes through the h81 chipset is 6, whereas the z87 chipset can handle 8.  The 1x PCIE slots run through the chipset, but the 16x slot runs straight to the CPU.  

I would think that you could run 6 GPUs max through the chipset while running the remainder of your GPUs through the 16x slot using the CPUs remaining availability. In this scenario you could only ever use a 1x2 card in one of your 1x slots.  If you moved the 1x3 card to the 16x slot then you could run 5 GPU through the chipset and 3 (or more depending on CPU, driver, OS) through the 16x PCIE straight to the CPU.

But that doesn't seem to be your experience.  If you have the 1x3 card in the last 1x PCIE slot then the 7th card you plug in should be the 6th card running through the chipset.  Theoretically you should be able to run 7 cards with your setup, but not 8.  And you can't.

So I'm wondering, perhaps we have a bottleneck somewhere else?  Out of curiosity, what CPU are you using?

http://ark.intel.com/products/75013/Intel-Z87-Chipset

https://ark.intel.com/products/75016/Intel-H81-Chipset

Thank you for your research. I use G1840: http://ark.intel.com/products/80800/Intel-Celeron-Processor-G1840-2M-Cache-2_80-GHz

@fredeq: also thanks.

[KL0nLutiy]

What about tonga, when will be speed up for tonga?

[batko]

use optminer for tonga

R9 380 about 220sol,
claymore we need faster miner for R9 380

[jenia1]

Hey Guys,

i have a 6 x RX 480 8GB Nitro Rig with modded bios  - 1700 strap copied to 2000, i use 16.11.4 drivers and i am getting 260H/s per card. shouldnt it be higher?

[batko]

Hey Guys,

i have a 6 x RX 480 8GB Nitro Rig with modded bios  - 1700 strap copied to 2000, i use 16.11.4 drivers and i am getting 260H/s per card. shouldnt it be higher?

No I have same card and with default clock i have 260-265sol

GTX 1060 6GB faster card than RX 480 8Gb

GTX 1060 6 GB about 300sol
Rx 480 8GB about 260sol