The other pins on the board's F_PANEL header may include a reset switch, yes. But without a manual for that board, it would be impossible to tell for sure. Most of the builds I've done have had somewhat of a std pattern to the pinout arrangemnet on the F_PANEL header. Look closely at the pinout header on the board. Usually there are abbreviations of what the pin pairs are for printed on the surface of the motherboard.
But by using the method I outlined above, you should have no problem identifying the pins for PWR, PWR LITE, and HDD ACTIVITY LITE.
This is a "standard" layout for most 9 pin F_PANEL headers on simple boards. But I can't garantee your Dell board agrees with it.