Where did you get your resistors (what part #s?) and how did you adjust the frequency once cgminer was running?
Thanks
there is no part number, just search for 0603 SMD resistors on ebay. You will get them very cheap.
You cant change frequency while CGminer is running.
"....hash rate at only 1.5 Gh/s."
No, it is not he pool side, your miner gets not enough power.