speaktorob
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Last Activity: 05-15-2024, 03:34 PM
Joined: 03-18-2024
Location: Yorkshire
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Note - this boardview has errors! For a start, the 1.8V coil and the PEX coil are mixed up.... -
I just found out that the boardview I got from repairlap that I've been working with has gotten the 1.8V and PEX coils mixed up. It also seems to have references to components that aren't there. I'm going with "avoid"
(forgive the necro, but since this post comes up in the top 10 right now on Google for "repairlap" I wanted to add my two cents)Leave a comment:
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The beads are there to reduce unwanted noise from the electrical input. So 0 ohm resistors would work, but they might leave the MOSFET firing unpredictably. Maybe have a look at the datasheet for the new MOSFET you are putting in and see if it gives you the driving frequency - that's the frequency you want to isolate, e.g. have a ferrite bead with 0 ohm resistance for that frequency, but high resistance at noise frequencies....Leave a comment:
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I was dumb enough to bin the whole shroud. So all I have now is the bare bones card. Live and learn!...Leave a comment:
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Hah! Kind of, although whatever I get needs to be dirt cheap - hence why I'm focussing on broken cards, since they likely will have a working fan. Did MSI use the reference layout too?...Leave a comment:
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Reference Nvidia GTX 980 ti - looking for a new shroud
So a while back, to deal with the fan noise of the old blower style shrouds on the reference cards, I chucked it and installed the monster that is a Raijintek MORPHEUS 8069, with a couple Noctuas on it. Did the job but quite unwieldy tbh.
Anyone know which boards would have a compatible shroud for it? I know the EVGA used the reference board but wondering if any other manufacturers did. I want to put something sensible back on it, but I'm having a hard time getting hold of even a faulty reference board for a reasonable price. -
+1
Follow the trace in the boardview (attached, use FlexBV free to view it) for each component.
Have you taken any resistance readings, is anything coming up short?...Leave a comment:
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Anyone have an idea what to try next?
* I desoldered the 1.8V coil and confirmed the low resistance is in the rail, not the voltage controller
* The resistance is 10 ohms at the coil, but 65 ohms elsewhere around the board
* I've examined the board but can't find any obviously dead components
* I can't really inject voltage because I still have 10 ohmsLeave a comment:
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Alright, so this is getting weirder.
I can measure 60-65 ohms on the 1.8V rail, or I can measure 10 ohms, depending where I measure from.
I've desoldered the inductance coil for the 1.8V rail to better figure out where the low resistance is coming from. When I measure from the solder pad going backwards to the VCC - nada, megaohms, all good. Measuring from the other solder pad going to the rest of the rail, its like 10 ohms to ground here. Same goes for the 6 capacitors in parallel next door that are presumably for frequency attenuation or whatever - they are 10 ohms...Leave a comment:
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ASUS RTX 3060 Ti Dual Mini - starts but no video
I've already had a little help at r/GPUrepair to get me here. (kudos /u/khoavd83 ✊)
At this point I'm trying to figure out if the GPU is a dead duck or not, but I don't have a thermal camera to perform the proper test. I tried the iso alcohol evaporation technique but it was inconclusive. Anything else I can try?
The history of the card:
Bought second hand, cleaned it up. Tried to make a fan mod with some noctua A9x14's. Got the wiring right -- at first -- but had problems getting the fans to fire up. When probing the fan header for voltages, I shorted... -
ASUS RTX 3060 Ti Dual Mini schematic request
I have the boardview as a CAD file (I've shared it in the sticky). But without the schematic I'm blind to figuring out what values any of the components should be showing. Trying to track down a low 1.8V resistance (yes, I'm in denial). -
Asus RTX 3060 ti mini - boardview cad file. Works well for my 3060 ti v1, there are a couple other variations that ASUS made in two-fan versions on this board that it should be pretty close to.
If you have the schematic, please get in touch! 🙏...Leave a comment:
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Hello 🌊
I'm here because I tried to make a custom fan mod for my RTX 3060 ti, and probably killed it when I shot 12V into the core whilst using a multimeter to probe the fan header pin outs. An expensive lesson!Leave a comment:
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