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

[Edsemen]

When I do -i 6 on my 7950's, it says there is not enough ram and it reduces it to 5! What SOL/s are you getting on your 7950s?

I am getting 230 with hard undervolt

I think your core freqauency is around 900 MH/s.

[z0n0]

As I put in my rig r9 290 cards a problem appeared. The cards themselves work undisturbed with -100 volts and the miner never restarts. However, every Internet stop crashes the computer. He does not restart - just hangs up and does not work.
rig :
290x
290
290
280x
280x
BTC pro motherboard
Windows 8.1

Even manually if I stop the miner - the computer crashes.
I use Afterburner. When Afterburner starting automatically with windows starting - computer crash on start.
When first start miner and then afterburner - everything is ok .

I have another computer with one R9 290 with Trixxx and situation is the same - internet stop - computer crash.

I'm thinking of grabing some used 290 and 280x...can you tell me how much power pull from the wall each of these 2 models when mining ZEC?
Thanks.

[z0n0]

Some tips for HD7950 mining?

Undervolting... from 1200 mV to 1070mV even 1050mV if possible

I do the 1000mV undervolting, it saves a lot of energy.

How do you undervolt 280x model?
Doesn't work in msi afterburner

[QuintLeo]

You have to mod the BIOS (or flash a pre-modded BIOS like the many put together by TheStilt back in Litecoin mining days) to undervolt a R9 280/280x/290/290x

 Not sure on ZEC, but I have a triple R9 290 rig (Sapphire reference design cards) running ETH that soaks a bit over 300 watts/card at 1100/1250 with one of the bios from TheStilt on the cards (they used to thermal limit to around 900 Mhz, less when it was HOT, before I flashed the BIOS on each card, now they do 1100 and STILL run about 10 degrees C cooler and it has to get VERY hot for them to start thermal limiting).

 My guess is that ZEC would probably run more like 220-250 watts per card at the same clocks with the same BIOS - but ZEC doesn't seem to need as much CPU on those to max sol/s so you can probably downclock them some for less power draw.

[pehoko]

When I do -i 6 on my 7950's, it says there is not enough ram and it reduces it to 5! What SOL/s are you getting on your 7950s?

Well I have managed about 260 (-i 5) at 950/1450/1.05v, last claymore zec miner.

[ccminer.net]

pardon me my stupd question but can I mine zclassic with this miner?

[th00ber]

pardon me my stupd question but can I mine zclassic with this miner?

Indeed stupid ! (Joking )
A miner is good for an algo.
So every coin from this algo family will be ok
(Equihash is the algo of the Zcash).

Zcl will be ok

[joe50]

zcash will hit $1000 before year end

[Tom17]

When I do -i 6 on my 7950's, it says there is not enough ram and it reduces it to 5! What SOL/s are you getting on your 7950s?

Well I have managed about 260 (-i 5) at 950/1450/1.05v, last claymore zec miner.

I'm getting around the same hashrate (-i 5) on my 7950's. I have not done the undervolting yet. Will it make a lot of difference to power/heat?

[toti]

I have 2 rigs that every morning falls between 7,30 to 8,30, One is running ZCash with 3 R9-290x Driver 15.12 and the other one ETH-PASC 3 RX-580 Driver 17.4.4, both latest version of claymore, both W10 Pro version 1703 15063.
I am using teamviewer to connect with them
Has someone the same problem??

[slovakia]

what hashrate you have with Sapphire Radeon HD 7970 OC 3GB   
thanks

[Naejmarcel]

I'm trying to mine using the Claymore V12.5 program using an AMD HD5750 1GB DDR5 card in the Suprnova Pool, however the program returns the following error: "OpenCL error 0 # 101 - -61". My motherboard has 2 GB DDR3 and runs the Win7 64bit. The Catalyst (GPU Card Driver) installed is version 15.12 and SDK 3.0. What is wrong?

[th00ber]

what hashrate you have with Sapphire Radeon HD 7970 OC 3GB   
thanks

260-290H/s
Depending of the freq

[smykowski]

I would love to get some help mining.  I mined years ago but it seems I have no idea what I'm doing anymore.  I have tried every miner available and it seems I get the same error.  I've tried different pools but alas no luck.
ZEC: Stratum - Cannot connect to eu1-zcash.flypool.
ZEC: Stratum - Failed to connect, retry in 20 sec..

I am running windows 7 64 bit,  r9 390, Catalyst 15.12.  My batch file contains:

GPU_FORCE_64BIT_PTR 1
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
ZecMiner64.exe -zpool eu1-zcash.flypool.org:3333 -zwal t1UKaEoMka8CghGrsehTKMXR72jZZMrpTKr.1 -zpsw x -i 8

I would appreciate any help.  I'm using the claymore miner v12.5 but I've gotten the same errors on other miners.  I'm probably missing something easy but thanks in advance.

[BLACKYB99]

I would love to get some help mining.  I mined years ago but it seems I have no idea what I'm doing anymore.  I have tried every miner available and it seems I get the same error.  I've tried different pools but alas no luck.
ZEC: Stratum - Cannot connect to eu1-zcash.flypool.
ZEC: Stratum - Failed to connect, retry in 20 sec..

I am running windows 7 64 bit,  r9 390, Catalyst 15.12.  My batch file contains:

GPU_FORCE_64BIT_PTR 1
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
ZecMiner64.exe -zpool eu1-zcash.flypool.org:3333 -zwal t1UKaEoMka8CghGrsehTKMXR72jZZMrpTKr.1 -zpsw x -i 8

I would appreciate any help.  I'm using the claymore miner v12.5 but I've gotten the same errors on other miners.  I'm probably missing something easy but thanks in advance.

try

set GPU_FORCE_64BIT_PTR=1
set GPU_MAX_HEAP_SIZE=100
set GPU_USE_SYNC_OBJECTS=1
set GPU_MAX_ALLOC_PERCENT=100
set GPU_SINGLE_ALLOC_PERCENT=100
ZecMiner64.exe -zpool ssl://eu1-zcash.flypool.org:3443 -zwal t1UKaEoMka8CghGrsehTKMXR72jZZMrpTKr.1 -zpsw x -a 0 -asm 1 -i 8

Make sure your firewall is not blocking the connection of ZecMiner64.exe

Regards

[joe50]

Please i need to understand what make some GPU has more hashrates than others, from the following list of GPU features which exactly is the main responsible for better or high hashreates:

1. Core Clock(Mhz)
2. Memory Capacity
3. Stream Processors
4. Memory Speed
5. Memory Clock(Mhz)
6. Process:(xx nanometers)
7. PixelPipelines
8. Memory Interface: (128, 256 Bit or higher)
 

[QuintLeo]

I'm trying to mine using the Claymore V12.5 program using an AMD HD5750 1GB DDR5 card in the Suprnova Pool, however the program returns the following error: "OpenCL error 0 # 101 - -61". My motherboard has 2 GB DDR3 and runs the Win7 64bit. The Catalyst (GPU Card Driver) installed is version 15.12 and SDK 3.0. What is wrong?

 HD 5750 is terrascale, not GCN - Claymore is written for GCN cards, though it *sometimes* works on some older pre-GCN cards there is no guarentee.

 However, I suspect part of your issue is you need more system RAM.

[BLACKYB99]

Please i need to understand what make some GPU has more hashrates than others, from the following list of GPU features which exactly is the main responsible for better or high hashreates:

1. Core Clock(Mhz)
2. Memory Capacity
3. Stream Processors
4. Memory Speed
5. Memory Clock(Mhz)
6. Process:(xx nanometers)
7. PixelPipelines
8. Memory Interface: (128, 256 Bit or higher)
 

For Zcash I believe Memory bandwidth mainly
RX 480 256 GB/s
R9 390 384 GB/s

Secondly the Core Clock

The microprocessor gives energy perfomance.

Anyways someone can add more info..

Regards

[maxlax1592]

I would love to get some help mining.  I mined years ago but it seems I have no idea what I'm doing anymore.  I have tried every miner available and it seems I get the same error.  I've tried different pools but alas no luck.
ZEC: Stratum - Cannot connect to eu1-zcash.flypool.
ZEC: Stratum - Failed to connect, retry in 20 sec..

I am running windows 7 64 bit,  r9 390, Catalyst 15.12.  My batch file contains:

GPU_FORCE_64BIT_PTR 1
GPU_MAX_HEAP_SIZE 100
GPU_USE_SYNC_OBJECTS 1
GPU_MAX_ALLOC_PERCENT 100
GPU_SINGLE_ALLOC_PERCENT 100
ZecMiner64.exe -zpool eu1-zcash.flypool.org:3333 -zwal t1UKaEoMka8CghGrsehTKMXR72jZZMrpTKr.1 -zpsw x -i 8

I would appreciate any help.  I'm using the claymore miner v12.5 but I've gotten the same errors on other miners.  I'm probably missing something easy but thanks in advance.

try

set GPU_FORCE_64BIT_PTR=1
set GPU_MAX_HEAP_SIZE=100
set GPU_USE_SYNC_OBJECTS=1
set GPU_MAX_ALLOC_PERCENT=100
set GPU_SINGLE_ALLOC_PERCENT=100
ZecMiner64.exe -zpool ssl://eu1-zcash.flypool.org:3443 -zwal t1UKaEoMka8CghGrsehTKMXR72jZZMrpTKr.1 -zpsw x -a 0 -asm 1 -i 8

Make sure your firewall is not blocking the connection of ZecMiner64.exe

Regards

So I'm having the same exact problem and your remedy didn't fix it... I'm on windows 10 64bit with an R9 Fury Nitro (Catalyst 17.1.1) and Claymore 12.5. My firewall allows claymore through. I'm using the configuration you recommended. My hash rate is zero. Any suggestions? Should I downgrade to the recommended Fiji drivers first?

[smaxz]

Please i need to understand what make some GPU has more hashrates than others, from the following list of GPU features which exactly is the main responsible for better or high hashreates:

1. Core Clock(Mhz)
2. Memory Capacity
3. Stream Processors
4. Memory Speed
5. Memory Clock(Mhz)
6. Process:(xx nanometers)
7. PixelPipelines
8. Memory Interface: (128, 256 Bit or higher)
 

For Zcash I believe Memory bandwidth mainly
RX 480 256 GB/s
R9 390 384 GB/s

Secondly the Core Clock

The microprocessor gives energy perfomance.

Anyways someone can add more info..

Regards

that pretty much sums it up.. the memory STRAP comes in to play also but was not listed in original query.

Process (xx nanometers) is just the manufacturing specification.. the more advanced (lower number) processes may allow for higher core over clocks but generally it just means the chip is more energy efficient.