This tip was submitted to the searchWin2000 Tip Exchange by member Andy Yanosick. Let other users know how useful it is by rating the tip below.
Poor performance from your servers? Does it look like a network issue? Don't forget about your hardware IRQ's. With so much focus on service packs, admins are forgetting the basics.
We recently had a NT server showing high alignment errors with a NIC using 25% of our CPU. Scrubbing the network from cables to ports to drivers gave little improvement. Calling the vendor yielded an IRQ change, which brought the utilization down to 1%. The alignment and run errors also stopped.
This was first published in January 2002