How fast does your Mac reset PRAM?

Hi all,

When our office purchases new MBP's, I am often able to compare them and select the best unit based on benchmarks, etc. Sometimes one is a tiny bit faster, or cosmetically a little better..

Anyway, onto my point. I noticed something in our recent purchase not seen before. One MBP 17" takes an extremely long time to "chime" between PRAM resets. To test this on your own unit, just hold Option-Cmd-P-R on at boot time. Many units seem to take about 35 seconds from initial boot to SECOND chime (when holding down those keys), but one unit we have - and just one - takes almost twice as long...

Anyone run into this? The unit is otherwise unremarkable and shows no errors or malfunctions. In fact, it benches the best of the lot, which is why I'm asking this question.