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

[Haruderty]

Unfortunately  zcash.flypool.org  dangerous pool, Trojans and viruses on it zcash.flypool.org...!

 Pools don't have viruses and trojans - though it's *possible* that some of the miner software they link to does, more commonly it's "false positive" reports.

How do you determine if a website has trojans.

[Janis2017]

Where these instructions actually i need to put in bat file and what they are doing there each off one.

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

[becomedeath]

An update to Microsoft Security Essentials is marking Claymore's miner 12.5 as a virus and shutting it down automatically. I had to disable it (I have other virus suites) in order for the miner to work. I was confused for a bit as to why it just stopped. But it is due to being marked a virus. Hope this helps.

[ccccccc7]

Where these instructions actually i need to put in bat file and what they are doing there each off one.

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

at the top of the bat file, you need the prefix of "set" or "setx" otherwise it does nothing e.g.

setx GPU_SINGLE_ALLOC_PERCENT 100

What they do? Read the commands and you could probably guess or give google a try

[Metamorph]

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.

[YIz]

Still lacks optimization for Fiji, 380H/s on latest drivers and about 480H/s with the recommended drivers you mentioned in the thread, however, the old drivers are unstable for some reason.

[pehoko]

Some tips for HD7950 mining?

[BogdanCo]

Some tips for HD7950 mining?

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

[Murtiya]

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.

[pehoko]

I am on 900mv, I am asking for mining intensity, frequencies, miner version.

[Tamilson]

I am on 900mv, I am asking for mining intensity, frequencies, miner version.

I use the -i 6 for my 7950.

[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?

[th00ber]

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?

240-250H/s

[chohav]

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

[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?