Why is my overclocked 7970 only getting 624 khps?

[jasontaylor7]

Stock frequencies are giving me only like 530 khps.  As you can see, I have the cooling and power to push this card to high frequencies, but then I only get 624 khps.  Am I using a bad OS, driver, cgminer, or some other setting?

setx GPU_MAX_ALLOC_PERCENT 100
setx GPU_USE_SYNC_OBJECTS 1
cgminer.exe --scrypt [account stuff here] --thread-concurrency 8192 -I 13 -w 256 --log 1

OS+drivers+deets: see attached screen shot, but vista & cat 13.4 drivers.  pci latency is at 64.

Do I need to run BAMT, or can I just change a driver?

Thanks in advance for any thoughts and comments.
http://imagize[Suspicious link removed]ageshack.us/v2/992x795q90/844/xu79.jpg

http://imagize[Suspicious link removed]ageshack.us/v2/992x795q90/844/xu79.jpg
imagizer dot imageshack dot us/v2/992x795q90/844/xu79.jpg

[Wipeout2097]

Perhaps I need to use this as my sig ... 

https://bitcointalk.org/index.php?topic=435438.msg4849281#msg4849281

[jasontaylor7]

Thanks wipeout!  Jumped straight to 780 kHps.   There was no need to have posted my bios, since most cards Stilt is willing to do are there done.  Seems the most recent binaries you discussed in your prior post (to sgminer win32 binaries) aren't on reddit anymore.  I found them here, so I wanted to share for others.

http://coinmyne.proboards.com/thread/24/sgminer-compiled-version-download

Another place for compiled binaries:

http://bal3wolf.centelia.net/MINING/