I must have been groggy when I tested. RAM is fine. A1 and A2 slots do not detect any RAM. B1 and B2 work fine. Now to try to figure that out...
Had one bent pin. The pin seems a bit “spongy” so it may not just be bent, it may be loose at the bottom. I don’t have the pinouts for the 1151 socket but I’d guess that pin relates to the A-channel memory controller.**