Thought I would provide an update with my setup. I got the 2nd R909 and 5th Compac-F up and running on a 2nd RPi4. I have been mining ViaBTC pool with the rig setups below and the 24hour mining results are: 10-Min Avg. HashRate fluctuates between 5.5TH/s and 7.5TH/s. All is working great and the R909s are AWESOME!
1st Rig: 1x R909, 4 Compac-Fs and 2 NewPacs. cgminer version 4.12.1 - Started: [2023-01-09 22:10:42.856]
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(5s):4.208T (1m):3.642T (5m):3.670T (15m):3.680T (avg):3.302Th/s
A:39440384 R:8192 HW:47379 WU:46131.1/m
Connected to bitcoin.viabtc.io diff 4.1K with stratum as user N0F34R.NPandT
Block: 11fe4e31... Diff:34.1T Started: [11:59:55.799] Best share: 31.6M
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[U]SB management [P]ool management [S]ettings [D]isplay options [Q]uit
0: GSF 10070012: BM1397:06+ 600.00MHz T:600 P:600 (3:2) | 96.3% WU:^87% | 2.745T / 2.104Th/s WU:29401.4/m
1: GSH 10041663: BM1387:02+ 375.00MHz T:375 P:375 (100:50) | 98.9% WU:^88% | 87.78G / 75.03Gh/s WU: 1048.2/m
2: GSH 10038894: BM1387:02+ 375.00MHz T:375 P:375 (100:50) | 98.6% WU:^88% | 82.19G / 74.92Gh/s WU: 1046.6/m
3: GSF 10052154: BM1397:01+ 450.00MHz T:450 P:449 (28:14) | 100% WU:100% | 287.0G / 242.7Gh/s WU: 3390.6/m
4: GSF 10053864: BM1397:01+ 450.00MHz T:450 P:450 (28:14) | 100% WU:100% | 337.9G / 267.3Gh/s WU: 3734.2/m
5: GSF 10050104: BM1397:01+ 450.00MHz T:450 P:450 (28:14) | 100% WU:100% | 317.0G / 269.7Gh/s WU: 3767.1/m
6: GSF 10054544: BM1397:01+ 450.00MHz T:450 P:450 (28:14) | 100% WU:100% | 306.3G / 267.9Gh/s WU: 3743.0/m
2nd Rig: 1x R909 and 1x Compac-F. cgminer version 4.12.1 - Started: [2023-01-09 08:51:23.596]
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(5s):2.266T (1m):2.598T (5m):2.554T (15m):2.528T (avg):2.234Th/s
A:50655232 R:4096 HW:60608 WU:31211.2/m
Connected to bitcoin.viabtc.io diff 4.1K with stratum as user N0F34R.T9andCF
Block: 11fe4e31... Diff:34.1T Started: [11:59:55.782] Best share: 118M
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[U]SB management [P]ool management [S]ettings [D]isplay options [Q]uit
0: GSF 10070032: BM1397:06+ 575.00MHz T:575 P:575 (3:2) | 100% WU:^86% | 2.211T / 1.995Th/s WU:27878.9/m
1: GSF 10053931: BM1397:01+ 400.00MHz T:400 P:400 (31:16) | 100% WU:100% | 259.0G / 238.5Gh/s WU: 3332.3/m
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Updated Rig video link:
https://youtu.be/MHAziVzA6I8