Well 2 of the units came in tonight and I am not having much luck with one of em..
1 seems to be spot on from the factory.
The other I am not sure why but it doesn't seem to be coming to life or getting anywhere near the hashrate it should.
I've swapped USB cables, tried a different PSU, tried only 1 R909 but no luck

Anyone have suggestions?
cgminer version 4.12.1 - Started: [2023-01-24 19:44:49.046]
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(5s):1.995T (1m):1.802T (5m):653.5G (15m):244.7G (avg):2.037Th/s
A:55629 R:0 HW:1280 WU:28262.8/m
Connected to solo.ckpool.org diff 519 with stratum as user
Block: a7b97cfa... Diff:37.6T Started: [19:45:21.343] Best share: 282K
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[U]SB management [P]ool management [S]ettings [D]isplay options [Q]uit
0: GSF 10070005: BM1397:06+ 450.00MHz T:450 P:439 (4:2) | 100% WU:^97% | 1.432T / 1.753Th/s WU:24490.1/m
1: GSF 10070040: BM1397:05+ 450.00MHz T:450 P:109 (5:3) | 21.6% WU: 18% | 367.3G / 270.1Gh/s WU: 3772.7/m
What I do notice is one shows up with 6+ and the other with 5+....
The one with 5+ is not performing in spec.
use Kano new miner.php and get into the gekkochip page check if all 6 are reporting, also at stats if your chips are failing to get set in frequency few causes:
Power not enough - you need a 100w as minimum to run these ones, or they are getting very hot let them cool, and try to push with no to little force the top heatsink and see if move, if it does then the heatsink bolts might got losen with shipping