Re: New more 'explosive' Sacon FZs
The vents didn't do much good anyway!
The vents didn't do much good anyway!
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So after using capacitor bungs to repair the rubber feet on two laptops, shown here:
https://www.badcaps.net/forum/showpo...&postcount=548
… and here:
https://www.badcaps.net/forum/showpo...&postcount=585
… I was inevitably left with some paper rolls and cans from the Sacon FZ capacitors I “sacrificed”.
The paper rolls from these Sacon FZ caps looked absolutely bone-dry. The idea then occurred to me: what if I put a few drops of water on there? How (if at all) would that affect these already-failed capacitors?... -
I'm finally recapping my Soyo K7VX6 motherboard (aka KT600 Dragon Ultra) and replacing Sacon SZ-series caps. The Sacon SZ datasheet provides a spec for tan delta, but not for ESR, while the candidate replacement caps are specified in terms of ESR.
I found this nice little description of the conversion:
Calculating capacitor ESR from Tan(delta)
https://forum.digikey.com/t/calculat...-from-tan/2633
It mentions that a general spec for tan delta has to be adjusted for the specific capacitance before plugging tan delta into the formula... -
I've been seeing a lot of cheap-looking (but not always so cheap) no-name AGP video cards on eBay for a while. They started popping up quite a bit when the market for AGP cards became more alive all of a sudden due to interest in “retro” PCs. One thing that struck me about these cheapo cards is that they almost always seem to come with garbage caps - including the abominable Sacon FZ. That aside, though, I've been wondering about the rest of the quality (or lack of?) on these cards. So I decided to satisfy my curiosity yet again.
This one was actually suggested to me by ChaosLegionnaire.... -
I did it again – I had to fulfill my inner desire to fix yet another old piece of hardware. This one is actually kind of worthwhile, too – it’s an EVGA e-GeForce 7600 GS AGP video card, model P/N: 256-A8-N542-T2. With the popularity of “retro” PCs from the Win9x to XP era going up, and the diminishing supply of decent AGP cards, it is expected their prices will go up. Or is it? I bought the this video card rather on the cheap side (~$9 USD shipped to my door), because the eBay seller listed it for parts or repair (and correctly noted the bad capacitors.)
So, here is the... -
Here is another eBay XFX $9 special video card
with more blown Sacon FZ capacitors. This time, a GeForce 9600 GSO model PV-T960-SDFH V1.4, based on the G92 GPU core (96 shaders, 192-bit 768 MB of DDR2 RAM).
Overview front and back:
Label:
The bad boys:
Let's see who does what – a cap diagram:
I think it should be pretty clear, but in case it's not:
…starting from the bottom (now we here?
) right corner with the 6-pin PCI-E power connector, we have 12V power directly...
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