WP13482
Jim, Erik, Dave:
h1seiey was powered down: computer, IO Chassis and AI chassis.
The IO Chassis A2 Adnaco backplane was replaced with a spare. The original backplane's slot3 failed during O4 (Oct 2025) and back then we shifted the cards left by one slot to avoid it.
| old backplane with broken slot3 (removed) | C8610513 |
| spare backplane (installed) | C8610832 |
I was then able to put the cards back into their original slots, making h1seiey identical to h1seiex. This meant A3 now had no cards installed, so I disconnected the A3 fibers from the rear of h1seiey.
For backplane testing we stopped the models from running to verify all the cards are seen. Auto start was turned back on, the system was powered up, the models started and lastly I powered the AI chassis back on.