On a crazy scale of 1 to realsolid, I think sunny king is batting maybe a 2 or a 3 right now

needs more ram.  it's cheap.

so many bumps

The <4x PCI-e slot was a suspected issue for a long time but no one had actually verified it to my knowledge.  I've only ever mined on 4x or greater slots.  The transfer speed is only 500MB/s per lane with PCI-e 2.0, so it's possible that using only a single lane may cause a bottleneck.

You can verify this simply by moving around the cards.  If the same cards are fine in an x16 slot but awful in an x1 slot, then you probably need the extra bandwidth.

well, i've paid for my 3x7950 rig mining litecoin for a few months.  all profit from here on out.

Now it's hitting 700mh/s!!! Lol. Nuts.

Cgminer tries to automatically pick values for your cards, it occasionally works.

network hash rate is about to hit 600 mh/s

world is about to explode.

Yes there is, in that there's an algorithm that requires 128 kb of fast memory per circuit as opposed to 0 kb of memory for SHA256.  128 kb of cache (or RAM) is not free and takes up a fair amount of die space.  Additionally, GPUs already have absurdly fast RAM onboard.  So instead of a 100x efficiency enhancement for ASICs, we may only see a 2x-10x gain along with higher production values.

In short the gains that will be made with ASIC are likely to be only similar to those made for BTC with FPGAs, which certainly did not stop people from GPU mining.  BTC ASICs will be the death of GPU mining.  Because product cycles are so outrageously quick for GPUs as well, it will be difficult for ASIC manufacturers to keep up.

Geistgeld 2: The Geistening

With reaper with mixed cards you should run a different instance for each card with "device x" in reaper.conf where x is the number referring to the card in zeroeth order.

You can implement variable thread concurrency values in cgminer using commas. All cards with different numbers of spus require different thread concurrencies.

Are they all in at least pcie 4x slots? I've mixed brands and cards before without problem

As stated use reaper for 79xx cards

bump

Yes, it's high.  Network hash rate reached 500MH/s the other day, or the equivalent of about 1,430 5850s.

use the windows binary in the command console? (start menu --> type in 'cmd')

http://ck.kolivas.org/apps/cgminer/cgminer-2.8.1-win32.zip

other than that it's the same as for unix

updated thread with common thread concurrency ranges, I didn't realize it but 5xxx and 6xxx cards perform the same as 7xxx cards in that memory padding size and therefore thread_concurrency have typical ranges in which the card mines the most quickly.

Thread concurrency was too high, --thread-concurrency 3200 -g 1 -I 17 -w 128 should give 210kh/s

yup, should be totally fine.

The worth is speculative.  The price is going totally fucking bazonkers lately as people try and buy it all up before the difficulty gets high, as GPU miners are starting to lose faith in BTC as we enter the dawn of ASIC mining and there will be for sure 3 different ASIC miners from different companies by the end of the year.

Usage on card or PC requirements?

You need about 512MB per card on the motherboard, so if you have 4x 5850s you need 3-4gb.