@george1421 You know what’s funny, as you typed your reply I had figured out your typo and I made the same mistake - inputting it as acpi… several times. Sure enough, setting noapic in the kernel argument worked like a charm. Thanks.
To humor your question though, this is running on an HP 280 G1 MT. I also found it mildly disconcerting that my searches of that specific issue came from well over a decade ago.