Hello.

[bazzip]

Im new to this forum but bought my first rig.  I have 3 7950s and am running cgminer 3.1 but I cant get the ssettings to work that are posted for my rig.  Im getting good hash rates but my hardware errors are high.  Im hoping to find a solution here.  Thanks!

[beepbeep]

Hi

[DrahogErusiel]

heya!

[willko]

2 x 7970s @ 1.5MH/s running for 26 days now and have 1.34BTC 

[arjay45]

Hello.

Many people have this difficulty. I have tried to help several of them but without much luck. I initially also had this problem myself and managed to fix it. Unfortunately I am not sure what actually fixed it.

One thing I would suggest is to find someone with a known good .bat (or .sh for linux/mac) file with very conservative settings and slowly tweak the settings to be closer to the posted settings.

One major thing people often overlook is setting this for windows:

setx GPU_MAX_ALLOC_PERCENT 100

Or this in linux/mac:

export GPU_MAX_ALLOC_PERCENT=100

Add that to the beginning of a .bat file (or .sh file) with the cgminer command line in it too (at the end).

What this does is allow your driver or whatever to use 100% of your video card's resources. Otherwise it will reserve some for other programs like windows. You will experience lag on your desktop while mining. At least that's what I think this setting does anyway, I don't know for certain.

But there's many other things that could be wrong. More than likely your settings are too aggressive and you need to back them off. Intensity is a major cause of this. Try 12 or 13 at first and slowly increase until you start getting hardware errors, then back off.

Anyway, I hope this helps.

[didjaydisteele]

welcome.

[Incogious]

Hi, I am in the same place as you. Trying to get out of newbie town.

[sexcoyote]

hello:) did you mine?

[Foamy]

sup

[willko]

One major thing people often overlook is setting this for windows:

setx GPU_MAX_ALLOC_PERCENT 100

Or this in linux/mac:

export GPU_MAX_ALLOC_PERCENT=100

Add that to the beginning of a .bat file (or .sh file) with the cgminer command line in it too (at the end).

+1

Great advice, this made the difference in stability for me a couple of weeks ago after a few days of constant crashing/freezing/dead gpu etc..

[l3t0m]

Welcome 

[bananenplukker]

Hi! Quite a nice rig you've got there! I only posses a 6870 + i5 2500k I use to mine whatever is most profitable

[muyuu]

Hi.

You're in time to sell. ASIC onslaught incoming.

[Kazah]

Hi there

[dsm]

Welcome!

FWIW, whenever I've seen hardware errors in cgminer it's been the result of the card overheating. Dial back the speed (and voltage) until the card is stable. Keep in mind that higher voltage means that the card consumes more power and that means more heat, but you need higher voltages for stable performance with higher frequency settings. Tweaking it is kind of an art form. Also, you should set the power setting to +20%. I don't know of any reason not to have that maxed.

Oh, and if you have an open rig, you might just point a large box fan at it to blow away all the heat.

[BitcoinBoss]

welcome to the forum

[zxc003]

Intensity high value also give HW errors. If u use cgminer try with:
-g 2 --intensity 12

[Nik1ab]

Welcome

[Alexgall]

welcome

[AlienMonkeyDXB]

Hi everyone!