Well, I'll run it up the flagpole and see what happens.
Thanks,
Sam

Since you are doing some benchies, also try this:
1) Run Catalyst 12.1 installer -> Custom install -> Unselect All button -> Select GPU Driver only -> Next... Untill it's installed
2) Run Catalyst 11.11 installer -> Custom install -> Unselect All button -> Select SDK Runtime only -> Next... Untill it's installed
3) Done!

That should give you a driver without the 100% CPU bug and the last version of SDK 2.5 runtime.

I found interesting problem:

I have mobo Gigabyte with PCIe 1x16x and 3x1x, then I used resers.
I used 4xVTX7970.
Procesor Sempron 145 have not enauch power to pull all 4 with their 670MHs/s.
When I use 2 cards - there is no problem at 1190/1250

I think that is something wrong with cgminer (with diablominer engine). Processor usage even with 2 cards is 100%.
Pure diablominer in this configuration use 7-15% processor.

Is this only my problem ?
A better - 4 core AMD X4 FX-4100 will solve this situation?

...

conman I believe found optimal intensity at 10 or 11 on 7970.

Since you are doing some benchies, also try this:
1) Run Catalyst 12.1 installer -> Custom install -> Unselect All button -> Select GPU Driver only -> Next... Untill it's installed
2) Run Catalyst 11.11 installer -> Custom install -> Unselect All button -> Select SDK Runtime only -> Next... Untill it's installed
3) Done!

That should give you a driver without the 100% CPU bug and the last version of SDK 2.5 runtime.

That was Linux.  My Windows 7/GD70 experience is different.  I was running 9, 10, 11, tried various other settings but I was constantly crashing cgminer.  I thought that it was my core/mem/vddc settings, but by accident I found out that on WINDOWS, intensity is the most critical setting.

7 is optimal on Windows with multiple overclocked cards.  Less than 7, runs well, but the hash rate suffers.
More than 7, CPU and GPU overloads are likely.  Depending what else is installed and running.

On Windows 7, overclocked cards with 9+  sooner or later get "idle for 60 seconds", "too busy GPU event log" etc.  That is on a clean, mean
and well tuned system.  It might take an hour, it might take few hours, but within one day cgminer crashes when run with -I 9/10/11 and overclocked core/memory.

Now, with -I 7 and 5 threads, my GPU loads are constant at 99%.

BTW, cgminer gets C5 exception (werfault.exe) when GPU gets overloaded and restarted by the BIOS.

You might be lucky with your "-I 9" for a while until the system crashes in the middle of the night and you lose 10 hours of run time :-(
Running with more than 7 creates more problems than it solves.  Hash rate does not improve by much as GPUs are at 99% already, so what is the point.  To crash cgminer?

So you go and try it on WINDOWS with multiple 7970s and post your findings.

ckvolias:

forgive me if this has already been reported but I have been super busy lately and not able to follow the thread

using latest cgminer 2.3.1-2 win7 64x

after awhile I loose temps and fan speed displays both on screen and from API - a cgminer reboot fixes the issue

screenshot....

http://btcwebhost.com/images/anubistempsgone.png