hi,
I'm experiencing weird cm1 behavior and I'm running out of ideas.
I was hashing fine with 800 Mhps using 200 MHz bitstream (makomk shortfin_dcmwd4e_ed_test_200_overclock.bit).
Then I've reinstalled my OS (xubuntu 13-> xubuntu 12.04) and now I can't get more than ~650 Mhps.
When using bfgminer, which sees it as 2 devices ECM0+ECM1, it seems like first chip is only getting to ~250 Mhps and second one ~400. This is in the beginning, after some time both chips are stabilized at ~330 Mhps.
There are some HW errors and messages about increasing queue length in the beginning, then after lowering to 650 Mhps, it is fine.
I tried to change the miner to mpbm. Same result.
I tried to flash the bitstream to 180 Mhz one (makomk shortfin_dcmwd4e_ed_test_180.bit). No change.
I tried to use another OS: mpbm under win7. Didn't help.
It looks like one of chips is not doing well.
What can I do now to diagnose or fix the problem? Thanks for any ideas.
I'm experiencing weird cm1 behavior and I'm running out of ideas.
I was hashing fine with 800 Mhps using 200 MHz bitstream (makomk shortfin_dcmwd4e_ed_test_200_overclock.bit).
Then I've reinstalled my OS (xubuntu 13-> xubuntu 12.04) and now I can't get more than ~650 Mhps.
When using bfgminer, which sees it as 2 devices ECM0+ECM1, it seems like first chip is only getting to ~250 Mhps and second one ~400. This is in the beginning, after some time both chips are stabilized at ~330 Mhps.
There are some HW errors and messages about increasing queue length in the beginning, then after lowering to 650 Mhps, it is fine.
I tried to change the miner to mpbm. Same result.
I tried to flash the bitstream to 180 Mhz one (makomk shortfin_dcmwd4e_ed_test_180.bit). No change.
I tried to use another OS: mpbm under win7. Didn't help.
It looks like one of chips is not doing well.
What can I do now to diagnose or fix the problem? Thanks for any ideas.