Really stuck here and looking for some help...
Trying to get past some other issues, we changed from ACPI to standard PC per the XP optimizations. We used to get a steady pulse frequency on the diagnostics page, but now we get something that bounces around in the sub 100 range (2, 38, 15, 80, etc). It will drive the machine, but we are having issues that we don't know if they are related to this, noise, or something else. The first thing we'd like to do is get the pulse frequency issue resolved. When we run the drivertest, it reports that it is 'excellent', but the diagnostics still look bad.
Desperate for some guidance here...