has anyone successfully got a 7950 and a 7790 to work in the same miner?
what driver version did you use?
Since each cgminer inside guiminer-scrypt configures to merely one video card your question is confusing but I will give the answers that I think you may be looking for.
1. Create inside guiminer-script a new cgminer for each of your video cards.
Realize each series of cards (ie: 7950, 7790, etc. have different settings that need to be used).
Find those settings. Configure each cgminer inside guiminer-script (a tab will be there for each one after creating them).
For 7950 cards you can run these settings (but NOT for 7790 cards, see further below for them)
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For 7950 cards ONLY
Thread concurrency = 24000
Vectors = 1
GPU Treads = 1
Worksize = 256
Intensity = 20 - (anywhere from 18 to 20 on a dedicated rig, lower that number if you get many
stales, say more than 3% stales.)
Look through the link below for proper settings guidance for 7790's
https://litecoin.info/Mining_Hardware_Comparisonfor 7790 cards ONLY from what I gather, on a dedicated mining rig try the following settings:
==========================================================
for 7790 cards ONLY
Thread concurrency = 8000
Vectors = 1
GPU Treads = 1
Worksize = 128
Intensity = 18 - (anywhere from 17 to 20 on a dedicated rig, lower that number if you get many
stales, say more than 3% stales.)
Use Stratum = YES if your mining on a STRATUM Pool. Otherwise Use Stratum = NO (getwork)
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If on a Stratum mined pool, then next create just one STRATUM miner inside guiminer-script for those new cgminers inside guiminer. And configure the HOST and PORT for the STRATUM to the same settings as for the cgminers for each card.
The HOST is the pools MINING address (for example) pool1.us.multipool.in
The port number is simply the port to mine on (for example) port = 3342
Recap:
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EACH and EVERY CARD needs their own cgminer inside guiminer-script.
Create those two cgminers.
Then create one STRATUM for them.
And for each pool you mine at repeat this procedure. Or get used to retyping all the data.
I just configure new miners and stratum for every pool mined.
Then flip between them as desired.
When done:
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1st fire up the Stratum. After it connects in a few seconds it will say connected inside it's tab, and also in the summary tab, you can also set the summary tab to be shown.
NOTE: Using the summary tab to engage and disengage the miners is the easy way to do things after the miners are all created and configured.
After the Stratum is connected then one at a time start your cgminers guiminer-script.
After the first one connects and reports hashing rate then engage the next cgminer inside guiminer-script. Caution: Engaging multiple cgminers at the same moment can result in driver crashes (screen lockup, hard reboot's). Avoid that issue, start miners one at a time, wait till hashing is reported to have begun to start the next miner/card.
One can synchronize different brands of any series of cards with MSI Afterburner, but they all must be 7950's, or whatever series, such as 7790's. But not mixed and matched between two or more series of cards. One cannot sync a 7950 & a 7790 for example. They must be the same series, although brands don't matter to Afterburner since they all have the same AMD GPU's.
My rig uses the following:
================
AMD Catalyst Software Suite 13.4
+
guiminer-scrypt_win32_binaries_0.03
+
MSI Afterburner version 2.3.1
Three synchronized 7950 Cards
Thread concurrency = 24000
Vectors = 1
GPU Treads = 1
Worksize = 256
Intensity = 20 - (anywhere from 18 to 20 on a dedicated rig, lower that number if you get many
stales, say more than 3% stales.)
EXTRA FLAGS = --net-delay (for any slower internet routers along the pathway to their server).
Three synchronized 7950 Cards (synchronized with MSI Afterburner v2.3.1, a stable version)
Two Asus 7950's, One Sapphire 7950. Synced to one Asus which is set as the master inside Afterburner, so that Afterburner overclocks them all in sync, and even after closing Afterburner and rebooting they stay in sync, and overclocked @ 1050 / 1500 with the power setting left at default. WARNING: Don't attempt to adjust Afterburner while miners are running. Or even starting Afterburner while miners are running, unless your rig is very stable, and even then it's wise to first stop the miners first.
If your rig runs too hot try pushing any boost switch once (that switch/button will be on the video card itself, if at all. That should result in the lower voltage option. Or, worse, the higher voltage, in which case it will quickly get even hotter than before. WARNING: turn off your PC before pushing any boost switch/button on your video card(s).
Happy Mining.
Caveat emptor - let the buyer beware!
