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Topic: Claymore's ZCash/BTG AMD GPU Miner v12.6 (Windows/Linux) - page 202. (Read 3839201 times)

full member
Activity: 189
Merit: 100
flypool.org went offline?

Miners are still showing hashing, but yeah site down for me as well.
legendary
Activity: 1708
Merit: 1048
flypool.org went offline?
newbie
Activity: 17
Merit: 0
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 Smiley

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
member
Activity: 94
Merit: 10
Hello guys. Little help please Smiley

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
sr. member
Activity: 273
Merit: 250
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
legendary
Activity: 2408
Merit: 1004
GPU 4, GpuMiner kx(2) failed -36 Huh Huh Huh Huh Huh Huh Huh Huh Huh Huh

why that happen?Huh?
newbie
Activity: 23
Merit: 0
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.
member
Activity: 99
Merit: 10
gigabyte 7950 v1 1050/1300 220H/s, Sapphire vapor x 280x 1100/1600 265H/s
moded bios.
legendary
Activity: 1498
Merit: 1030
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.
newbie
Activity: 23
Merit: 0
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. Wink
legendary
Activity: 2174
Merit: 1401
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.
hero member
Activity: 729
Merit: 513
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. Wink
newbie
Activity: 23
Merit: 0
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.


hero member
Activity: 671
Merit: 501
Blockchain and stuff
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.

newbie
Activity: 17
Merit: 0

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 plug the pcie switch card to pcie x1 slot on asus m4a78 motherboard. to x16 slot on mb plugged over usb riser r9 290. next 3x 290 plugget to pcie switch.
work fine more that 1 week on dualminer.
full member
Activity: 223
Merit: 100
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.
full member
Activity: 258
Merit: 100
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.
newbie
Activity: 23
Merit: 0
The problem occur directly in windows 10, not remotely...

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 had the same when I connect using Remote desktop Connect. When I connect after reboot with teamviewer or use a screen it was fine. but if i use windows RDC it gave the temp not reporting
sr. member
Activity: 512
Merit: 260
What is the sols of a typical RX470 4g?

My Sapphire RX 470 Nitro OC 4GB with stock clocks and bios is giving me about 230h/s (not at computer right now to give you an exact figure)
thanks
legendary
Activity: 1537
Merit: 1005
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

This seems like a reasonable explanation https://forum.ethereum.org/discussion/comment/65925/#Comment_65925
So its a hardware limit of memory being addressed.
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