Reply 16480 of 27559, by shamino
- Rank
- l33t
I think I finally fixed an Epox KT133 motherboard that's been hanging around needing repair for over 10 years. Back when I got it I was new to soldering. I had replaced the major caps but it had a shorted MOSFET. I replaced that MOSFET but it was unstable.
Over the past week I re-recapped it, replaced all 5 of those MOSFETs, and I *think* it's good now but I've only used memtest86.
I tested it with a Thunderbird at 1300/100 and 3x256MB PC133 and it eventually froze.
Clocked it down to 1200/100 with same RAM and it passed.
Guess what Epox listed as the highest supported CPU.
My PSU might be an issue, the 5V supply was sagging a bit.
You're also not supposed to run that many banks of RAM at PC133 speed on this chipset, something I had forgotten.
I was going to sell this board off. Now I don't want to. I think I should have one KT133 board around.
So in the search for boards to get rid of, I remembered having a few crappier KT133 boards (different brand) that I really don't want. I got them in a bulk lot in the late 2000s and had been selling them, but stopped because they were troublesome. Nowadays they could be worth something and I need to clear stuff out.
A few hours ago I dug one out (that used to run) intending to test it.
It turned on for a few seconds and a MOSFET smoked. I probably shouldn't have put a CPU in it.