I wonder how to update the serial information in L1. I added additional RAM to my Tezro, it is shown by hinv, but not by "l1cmd serial all". I entered update and enableall in PROM, but it still shows "no hardware detected" for the DIMMs with new RAM.
If you haven't already, try a reboot_l1, or better yet, completely remove power from the system/L1 (i.e., pull the plug). That will cause the L1 to re-inventory all the hardware that it queries via the I2C bus.
Sorry for the delayed response - somehow I missed your post on the first go-round.