Trying to use NBMiner 30.2 on kawpow and get the following error messages on my 7950 AMD's:

nbminer.exe -a kawpow -o stratum+tcp://us-rvn.2miners.com:6060 -i 14 -u xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.7950
[15:20:23] INFO - ----------------------------------------------
[15:20:23] INFO - |                  NBMiner                   |
[15:20:23] INFO - |              Crypto GPU Miner              |
[15:20:23] INFO - |                    30.2                    |
[15:20:23] INFO - ----------------------------------------------
[15:20:23] INFO - ------------------- System -------------------
[15:20:23] INFO - OS:     Windows 10 (10.0), 10.0.18363
[15:20:23] INFO - CPU:    Intel(R) Core(TM) i3-8100 CPU @ 3.60GHz
[15:20:23] INFO - RAM:    4306 MB / 8130 MB
[15:20:23] INFO - VMEM:   21321 MB / 26562 MB
[15:20:23] INFO - ------------------- Config -------------------
[15:20:23] INFO - ALGO:   kawpow
[15:20:23] INFO - URL:    stratum+tcp://us-rvn.2miners.com:6060
[15:20:23] INFO - USER:   xxxxxxxxxxxxxxxxxxxxxxxxxx.7950
[15:20:23] INFO - TEMP:   90C
[15:20:26] INFO - ------------------- Device -------------------
[15:20:26] INFO -  |ID|PCI|  CC|Memory|CU|
[15:20:26] INFO - *| 0|  1| 600| 3072M|28| AMD Radeon HD 7900 Series
[15:20:26] INFO - *| 1|  2| 600| 3072M|32| AMD Radeon R9 200 / HD 7900 Series
[15:20:26] INFO - *| 2|  6| 600| 3072M|28| AMD Radeon HD 7900 Series
[15:20:26] INFO - *| 3|  7| 600| 3072M|28| AMD Radeon HD 7900 Series
[15:20:26] INFO - *| 4| 12| 600| 3072M|28| AMD Radeon HD 7900 Series
[15:20:26] INFO - *| 5| 13| 600| 3072M|28| AMD Radeon HD 7900 Series
[15:20:26] INFO - ----------------------------------------------
[15:20:26] INFO - kawpow - Logging in to us-rvn.2miners.com:6060 ...
[15:20:26] ERROR - Algorithm 'kawpow' not supported on device 0 : AMD[600] AMD Radeon HD 7900 Series
[15:20:26] INFO - kawpow - Login succeeded.
[15:20:26] ERROR - Algorithm 'kawpow' not supported on device 1 : AMD[600] AMD Radeon R9 200 / HD 7900 Series
[15:20:26] ERROR - Algorithm 'kawpow' not supported on device 2 : AMD[600] AMD Radeon HD 7900 Series
[15:20:26] ERROR - Algorithm 'kawpow' not supported on device 3 : AMD[600] AMD Radeon HD 7900 Series
[15:20:26] ERROR - Algorithm 'kawpow' not supported on device 4 : AMD[600] AMD Radeon HD 7900 Series
[15:20:26] ERROR - Algorithm 'kawpow' not supported on device 5 : AMD[600] AMD Radeon HD 7900 Series

It appears that it is not supported, is there a way to get the older 7950's working on kawpow?