Robert wrote: > Following the update this morning, NTP is failing with the same symptoms > that I saw several years ago (pre-CentOS, I believe) when Anaconda > mistakenly blessed my ASUS A7N8X, Athlon (CPU: AMD Athlon(tm) XP 2600+ > stepping 00) based system with an SMP kernel. The symptom is that NTPD > never establishes sync with a server, showing over the top jitter values. Several years ago with a Gentoo installation I experienced an identical problem with an ASUS A7N8X-E Deluxe motherboard, also with an AMD Athlon XP 2600+. After a lot of experimenting, I discovered that if the FSB Spread Spectrum feature was enabled with ACPI, spurious timer interrupts were generated, causing the system (Linux) clock to tick fast and ntpd to fail to sync with any time source. Who knows whether a BIOS update will fix this problem, but a quick test would be to disable the FSB Spread Spectrum feature and see if that fixes the problem. Cheers, Michael