Andy Mallon walks us through setting up tempdb:
There are three problems I’ve got to fix. I need to (1) remove those two extra files, (2) grow the
tempdblog file, and (3) even out the size of the data files (and shrink them a little to make room for the larger log file. We’re going to tackle these in the reverse order than I listed them–partially out of necessity, and partially because it’s going to be easier.
Click through to see how Andy sets up tempdb. This is a good way to set up tempdb.