Are you running @ 800mhz and what kind of temps are you getting?
default mhz is 550 and that only got me 360 ghs.
700mhz gets me 500ghs @ 88c.
Can I push it to 800mhz?
It was tested @ 800mhz and ran 689ghs but I don't
know how or what they used to cool it with.
whats the need for the usb running from the pump?
I powered mine from the sata power cable from the psu.

any info is greatly welcomed,
Thanks