First post, by Frasco
Now that you said 6600GT in a previous topic a while ago,
I would love to play around with a MSI NX6600GT AGP (faulty) and take advantage to
learn a little bit about eletronic.
The card is artifacting in BIOS, POST screen, on DOS, etc... (weird characters)
I'm pretty sure this video card is gone. Oddly enough, every time I touch it, the artifacts dissapear.
Another push and artifacts say hello again.
Once it worked for 20 minutos without issues...Does it need a reflow ?
And now, what I would like to understand...
Some tools I got here (Multimeter/Capacheck) report 5 capacitors are shorted (marked in green).
What's going on here ? Cause or effect ?
I've been told I can't determine the health of capacitors (in circuit) for sure.
There may have a component with "low resistive value".
Should I:
- Take them out and check one more time ? This way I can find out with certainty if capacitors are fine.
- Let it go. Just too complicated to grasp. Take it to the doctor.
- Forget all about those tools. You have to get a ESR meter.
- Just recap the whole thing and leave us alone.
Capacitors can go bad without having any physical damage (Leaky/bulged) ?
Inverstigation:
PSU has 15A in 12V line. I don't think this is relevant. The card consumes only 80 Watts full load.
*** Here we go reading the topic "PSU - bust the myth" all the way.
Previous owner said the card was tested in a motherboard and since then the problems began...
So I am looking for some tips. I will accept >>> study this / read that / Frasco stinks
(rabbits stink reference here)
I am really lost! Kind of guy who can rescue some hardware through persistence, but don't have skills
with schematics, resistors, eletronics so to speak.
I have here with me two motherboards with same "issue" (shorted capacitors):
- ASUS P5NE-SLI (smoked while I was messing with front panel connectors)
Southbridge is shorted and getting hot as hell. - EPOX KL133-ML
Running Windows 98, didn't take any stability test.
Onboard sound is artefacting.