IBM NetVista Pentium III - USI Motherboard w/ Teapo SC

[iMic]

Hi folks,

I have a couple of IBM NetVista desktop computers from around 2000-2001. They have Universal Scientific Industrial (USI) Pro286i motherboards, 733MHz Pentium III processors, and a whole bunch of bad Teapo capacitors. One board has visibly bad and venting capacitors, while the other doesn't look too bad so far.

The board with venting caps works fine, while the good looking board occasionally refuses to power on unless it's left for about 30 seconds after connecting the power - even with a known good power supply. (I am however aware I'll need to check the PSU capacitors as well.)

From a quick glance, there appears to be three different types used on this board:

• Teapo SC 12.5mm (Above CPU)
• Teapo SC 10mm (Around Board)
• Teapo SEK 5mm (Around Board)

I did some searching around and saw some mention of using Panasonic FK and FC series capacitors as suitable replacements, but I don't know if that advice necessarily applies in this application (P3-era motherboard).

What reputable capacitor series should I be looking at to replace these?


I'm sourcing these in Australia, which I need to take into account. Typically I would source them from Avnet / Element14 Australia which seem to stock primarily Panasonic capacitors, as well as a smaller selection of Rubycon and Nichicon, and an even smaller selection of Chemi-con.


Cheers,

Mic.

[прямо]

https://www.badcaps.net/forum/genera...acitors-thread

On a side note:

Bulk charging capacitor usually rated 16V and above, don't need to be the lowest ESR type. Capacitance value must be equal or slightly higher.
Panasonic FC is good enough.

For the ones sitting next to MOSFETS and INDUCTORS, the lower the ESR the better.
Panasonic FK is also a good choice.

In my country, you will find plenty of fake Panasonic FC/FJ/FM/FK/FR, so I just go with Chemicon KY, KZE/KZH and KMG because they're produced by a Nippon-Chemicon owned factory locally.

Do pay attention to physical diameter and height as well.
You want to avoid a situation where they don't fit next to each other, or the height touching CPU cooler and things like that.