Thanks on the advice on the boos at 1gh.

Started them a couple of times and that did work.

Appreciate the help all.

I would love to hear what everyone else is running and the speeds and setups they have.

I have a ASRock H81 BTC MB w 8GB RAM and a 650w platinum PSU, Haswell dual-core CPU, 120GB regular HDD.

Have 4 MSI 750 ti OC (non gamer, non TF, no power plug, single fan), with one in the 16x slot, and 3 on 1x > 16x powered ribbon risers.

With CCminer35 x86 running, and the cards OC'd +70 GPU, +120 MEM, 70% fan speed, and the TDP edited in BIOS to 65W.

Currently 42-44 Mhash/s on 1gh.com mining heavycoin

Running two CMD windows each with a config for two cards (-d 0,1 & -d 2,3), chrome opened up to the Nvidia.com homepage, and the two CMD windows minimized (save the CPU from having to redraw them constantly).

The entire system is currently pulling 229W at the wall measured on a Kill A Watt.

All 4 GPU's are are bouncing between 48-50c temps with these settings.


edit: forgot to mention running Win7 x64.

Sure you can, I've got one cmd running my 670 with the -d 0 option and another cmd for 2 non-ti 750s with -d 1,2.  Don't see why it wouldn't work combining them, I just thought it would be simpler to keep them separate in order to see individual rates easier.

Hello guys,

Thanks Chris&Chris (or whatever we should call you two). I just started HVC mining on my GTX 770 (windforce 3x) and my i7-4770k combo, with windows 7 64-bit.
Here's my best result:


Sadly I cannot overclock it more than this before I lose stability (sure, I don't lose a whole lot of stability, but I like my stability). Compute20 scores just a little bit lower, about half a Mhash (I think, the hashrates I see flying by fluctuate a bit), and compute 35 just crashes outright after the stratum detects a block. The 64-bits score just a bit lower than the 86-bits.
As you can see from the screenshot, the power usage averages out about 60, and the GPU load about 97. I tried to open up another instance to get those last juicy bits, but that just halved the hashrate for both, for as far as I could see. I also tried running an instance of CUDAminer, just to see what would happen, and it was pretty much as expected. The CUDAminer crushed CCminer to about half a mhash, and CUDAminer was about 70 khash lower than normal.

After letting it run for some more time, the hashrate becomes stable at 12,8 mHash.

If anyone got some extra tips to squeeze out a bit more, I will be thankfull.
By the way, 1GH gave my stratum does not authenticate errors, and the first pool of heavycoinpool gave me errors as well, the no error given kind.

Edit: Ah, now I understand why my yay/s was so high. VARDIFF had not kicked in yet, and I was getting low difficulty shares. Suffice to say that I get a lot less yay/s now. But I can get a better look at my hashrate now, and it is around the 13000 kHash/s

I get MSVCR100.dll missing error when I start up the ccminer. Any one who know what to do?, I can copy it from old cuda, but will that f. shit up?

There is no need to restart it. Just wait that the difficulty stabilise and it will work fine.

vardiff sux all the time, you get lower hashrate due to it anyway.

Groestl runs at 7.5MH/s on 6970 (900/500) and 5.3MH/s on 5850 (850/300). Low mem for running cool

I feel stupid. I am so used to adding a .1 at the end of the worker in the bat, that I did that for 1GH as well. I should not have done that. As for the constant boos after share 25, I got that too, but it went back to yays after share 129, when VARDIFF kicked in. Now I only get the occasional boo.