Good news is that power control setting allowed GPU 1 to be in full clocks. However GPU 2 is not.

And doesn't the bios switch thing void the warranty?

Itsa gold rush like no other ... gonna be some trashed high-end AMD graphics cards coming on the market that's for sure.

I posted in tech support, but maybe cross posting here would be good:

I am on windows7 x64.  Installed bitcoin and the GUIMiner.  Running the ATi (AMD) OpenCL posted in the GUIMiner thread.

I have changed my bitcoin.conf (C:\Users\myusername\AppData\Roaming\Bitcoin) to have my username and password:

rpcuser=c
rpcpassword=c

I launch GUIMiner and tell GUIMiner to launch bitcoin client as server.  I always get the "Problems communicating with bitcoin RPC" although I think I have set it all up correctly.

I even have launched bitcoin.exe with -server (and even --server) after a friends recommendation.  no avail.

I dont think port forward is an issue cause it is all local.

Anyone else experience this problem?  Any ideas how to fix this?

Thanks for any ideas, I am at a loss here.

Better change fan speed from Auto to 100%, which will make fan run at 100% speed, so less temperature.

What I personally have had several times over with the 5770 is that the "middle" GPU clocks get used, i.e. 400 MHz core, which drops Mhash/s to around 80 instead of the normal 175-180.

Sometimes doing nothing resets it back to the full 850, sometimes I need to start a 1080 video or SOMETHING, but quite frankly, most of the time I can't use any manual trick to get the full clocks back, not even the overclock trick in the FAQ, nothing. And it sure is not temperature anymore at 65C peak.

Why would the card clock down if it itsel reports 97% use all of the time?

Anyone else have this issue?

run in command prompt poclbm.exe -h

Can you add automatic support for BTCGuild?
http://forum.bitcoin.org/smf/index.php?topic=7760.0

Also, a README file with all the possible flags would be nice, combined with what they do.

Other than that, your GUI is AWESOME!!

Sure, I can add BTCGuild. As mentioned you can run it manually using the "Other" option or by editing your server.ini, but it's no trouble to include it automatically in the next release.

While we're on that - do you have any idea how to make it use more load or simply enforce the full 3D clock mode on the AMD cards?
My 5770 keeps drifting back to the 400 MHz core for some reason, and it seems more randomness than anything else for it to come back.

Cooling is fine, always < 70C GPU, so I have no idea what it really is.

Should I be looking at the -f flag?

If you want to keep your clocks at a certian level you can just set them with afterburner.