When I was designing ethernet cards for 3Com, my department wouldn't use electrolytic capacitors. Not aluminum, not tantalum. Tantalum performs better, but there were really bad environmental and human rights problems with the way they mine it, and eventually there were shortages. We used multilayer ceramics (MLC), surface mounted, for everything. You got as much supply bypass effect from a 2.2 uF MLC as from a 22 uF wet tantalum or any size wet aluminum. MLCs have the same wear-out mechanism as ICs, electromigration. That's why you need to pay attention to the current rating when you design them...

Re: Ms-6340 V.1 Help!

I've got an MS-6340 [B]V.1[/B] board. The general layout looks like the pictures in the manual everybody is linking to. But the connectors JFP1 (front panel) and JGS1 (suspend button) are different. In the manual we have, JFP1 is missing pins 3, 4, and 17. (Pins numbered like a ribbon cable, pin 1 closest to the center of the board.) On the [B]V.1[/B] board, only pin 14 is missing. The paint markings are ambiguous, but they don't match the manual at all. Apparently this connector was completely reworked between MS-6340 and MS-6340 V.1. I suspect the V.1 was...