CGminer - Invalid Nonce - HW error

[plonk420]

.conf is a configuration file for the app. kinda like a .ini for a windows app.

[lbr]

In my experience I 20 works the best.
With low intensity card is not working at "full" speed, so you get less errors.
Yes, you can separate values with comma.
-g 2 does not work for any of my cards, g 1 the best.

f.e. 3 x 7950, LTC, ~600khs each card
cgminer --url URL -u USER -p PASS --scrypt --worksize 256,256,256 --lookup-gap 2,2,2 --shaders 1792,1792,1792 -I 20,20,20 -g 1 --thread-concurrency 44000,44000,44000 --gpu-engine 1050,1050,1100 --gpu-memclock 1550,1350,1250 --gpu-fan 100,100,100 --gpu-powertune 20,20,20 -v 1

7970 has 2048 shaders, you can check shaders count in GPU-Z

p.s.
you don't want to use exactly the same clocks ; )

[dimke_yu]

Thanks for settings I also can agree that I=20 works best for 7950, but for clock speeds you need to fine tune it for every single card, this is also a must when tweaking thread-concurrency. I would like to point out that is realy recommended to set your vddc as low as you can and the try to set up clocks. After that temps are going to be lower and your fan does not need 100%, I keep mine in range from 60%-85%.

[DarkLight72]

Can I ask what might seem a really novice question? What is the litecoin.conf files purpose created in the app directory for litecoin mining? Does it allow access to that port or something totally different?

Thanks,

To the best of my knowledge, the .conf file for any altcoin should be in the data directory for the client, not in the app directory with the daemon/minerd/wallet.  I personally run the data directory as a sub-directory of the app directory and then manually point the wallet/miner/whatever at the data directory with the argument below (via a shortcut).

Code:

-datadir=<full path to the datadirectory>

That way I can run every altcoin from a subdirectory of a single directory on my drive, encrypt that drive, put EVERYTHING on a flash drive if I want, etc.

As far as the purpose of what goes into the .conf file, the most common configurations you will see are as follows:

# Sets the username for your miner when mining solo
rpcuser=username
# Sets the password for your miner when mining solo
rpcpassword=password
# Tells your client what IP addresses to allow connections from
rpcallowip=127.0.0.1,*
# Tells your client, when running in Server mode (see below) what port to listen on if not the default
rpcport=9999
# Tells the client to launch in server mode
server=1
# Tells the client to launch as a Daemon (don't know if this works in Windows or not...It does in Linux).
# The difference between a Daemon and Service is beyond scope.
daemon=1
# Instructs your client, when in server mode, not to generate coins.  The reason for this is that virtually
# EVERY miner out there runs something MUCH more efficient that bitcoind!
gen=0
# Adds specific nodes to for your wallet/client to attempt to connect to at startup.  This can be helpful
# if you are having trouble finishing download of your blockchain or if a client update has taken place
# recently and your client is saying that your peers need to update.  If you can find a list of known good
# updated peers, you can get the most recently updated blockchain from them and keep on keeping on.
addnode=x.x.x.x

The official page of the bitcoin (and ultimately all the other altcoin) configuration file is at https://en.bitcoin.it/wiki/Running_Bitcoin, but I had to look up a couple of things to figure out what they meant.  For example, why wouldn't I want my client to generate coins?

HTH

--DL

[baros008]

I got same error on friend´s Radeon 7750 with clock speeds at default.
Installation of latest driver didn´t help, will try some kind of driver cleaner and clean installation of drivers.

[howardb]

The nonse problem is also caused when cgminer tries to use a pool for the wrong kernel, ie using bitcoin (phat) kernel instead of scrypt kernel on a litecoin pool

[Snub]

Just sounds like your card doesnt like your settings somewhere. Usually the thread concurrency is to blame.


In case you havent set this up in the command prompt first. Please go start -> run -> type "cmd" -> press enter. Than type:  setx GPU_MAX_ALLOC_PERCENT 100  and press enter.

Than try these specs.

--thread_concurrency 21712  or 16834
--gpu-engine 1100
--gpu-memclock 1500



If one doesnt work, than try the other. GL  



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