this is my result. an 13.5T Autotune Firmware flashed with 650M Fixed Firmware, Power Supply are Dell 2100W (first and second) and HP 2450W (third one)

no problem so far, tried to push to 800M with 9V but too much HW Error, some board disappear and reappear again, then disappear again

Cooling are SanAce 12V 4A Fan in Intake and a Antminer S9 Standard 2.7A Fan at Exhaust, using a Flex Duct to separate intake and exhaust

https://scontent.fbkk13-1.fna.fbcdn.net/v/t1.0-9/37541992_10211424473625620_3799229350218301440_n.jpg?_nc_cat=0&_nc_eui2=AeHBGKHH5Kte04ryLQZgw74Sbg5t7fF9fOY2eGCFUtFjv5iMdLr8QXRrSN4nxl7HazsYBVJN8eEfLlAl4E9PWAj23nYOGbQcWfvE0bTzhs1dWg&oh=f158c9727e326d373413707e703f4dd8&oe=5BD54C6C

https://scontent.fbkk13-1.fna.fbcdn.net/v/t1.0-9/37568796_10211424474065631_1392267447758749696_n.jpg?_nc_cat=0&_nc_eui2=AeGQSNJ9WoGXwNx2920bvRtotViiJPxLRUhpciUuL7UmEbP51-42-whbuBtx63MVrWmUHkpiZWC02ITMlkPlgGHhbppBOCtIujOlx-bMshb1Gw&oh=116b52a17083c01f7c4b4067cda1ce43&oe=5BDAA4E5

https://scontent.fbkk13-1.fna.fbcdn.net/v/t1.0-9/37634040_10211424474305637_6158869680967647232_n.jpg?_nc_cat=0&_nc_eui2=AeGIKoVMD5FA31ZJjonnKSLMwcZsQv1BT7BB6hVPzeZ8vt_FK2tJaII6Tp3szozZn6Q9CZz0-MP-amo1QvNnHNYJQ_gNNkO72JN-bzKQNpUKjA&oh=2d0a6b70690823393e6baac07108588e&oe=5BCF0D88

AwesomeMiner

https://scontent.fbkk13-1.fna.fbcdn.net/v/t1.0-9/37568260_10211424434264636_9133086404044128256_n.jpg?_nc_cat=0&_nc_eui2=AeEPOTQ7N0-cRE_b7g0i9s5i2SWnXxUQ2s50_2nNxBDDq6Tgv5HU1Cz69aR-KbXIRQJYi2dJHTRe58xLEZpzK2h0VJWODC1uYO-xfxgvUsiXXA&oh=a471e2f4a50426bf350afa510e68171c&oe=5BD71F1F