Why first FPGA gives hash rate less than 250 Mhash/sec ?
fpga0 A: 22 R: 2 114 Mhash
Is it because only one of two FPGA used ?
The total hashrate then can be approximated as 114 * 2 * 7 = 1697 Mhash/sec, right ?
Yeah, one FPGA had stopped getting new work. I'm still working on the software all the time and was trying out something new that didn't work so well.
By the end of the month, I'll have a bunch of boards here, so the 7 GLBSE boards can mine away undisturbed why I hack at stuff using a different board. For now, this is the only X6500 I have, so it's main job is still development and testing. You guys are just picking up all the revenue earned during that testing.
Yes, your calculation of the total hashrate is correct, but you can use 125 MH/s as the single board hash rate. 114 is simply an estimate based on the previous 15 minutes, which was slightly unlucky for this example.
125 * 2 * 7 = 1750 MH/s is what we should expect, but I'm sure that we'll get even higher with improvements to the firmware.