Hello.   Asus mining expert b250 + 16 Nvidia p106-100 + ubuntu 16.04 + claymore 12

Starts all right but later...

part of claymore log:

17:51:04:312    55fdf700        ETH: 02/07/19-17:51:04 - New job from eu1.ethermine.org:5555
17:51:04:312    55fdf700        target: 0x0000000112e0be82 (diff: 4000MH), epoch 239(2.87GB)
17:51:04:312    55fdf700        gpu #0 dt 121.9 (70%, bad)
17:51:04:312    55fdf700        gpu #1 dt 136.9 (80%, bad)
17:51:04:312    55fdf700        gpu #2 dt 249.12 (110%, bad)
17:51:04:312    55fdf700        gpu #3 dt 246.11 (112%, bad)
17:51:04:312    55fdf700        gpu #4 dt 191.11 (90%, bad)
17:51:04:312    55fdf700        gpu #5 dt 258.11 (116%, bad)
17:51:04:312    55fdf700        gpu #6 dt 261.12 (115%, bad)
17:51:04:312    55fdf700        gpu #7 dt 302.12 (132%, bad)
17:51:04:312    55fdf700        gpu #8 dt 178.9 (103%, bad)
17:51:04:312    55fdf700        gpu #9 dt 183.9 (108%, bad)
17:51:04:312    55fdf700        gpu #10 dt 164.9 (96%, bad)
17:51:04:312    55fdf700        gpu #11 dt 187.9 (109%, bad)
17:51:04:312    55fdf700        gpu #12 dt 193.9 (114%, bad)
17:51:04:312    55fdf700        gpu #13 dt 222.9 (131%, bad)
17:51:04:312    55fdf700        gpu #14 dt 155.9 (90%, bad)
17:51:04:312    55fdf700        gpu #15 dt 189.9 (109%, bad)
----

hashrate 1/2
what is it?