sophistry
Better design of Cell? Well maybe in the Cells with Black Plastic between the IHS and its Body of Fiberglass, that one would Have better Copper wire inside of its fiberglass but only that, cause its thickness its ultra thin like half the or less the thickness of standart Cell fiberglass, but for that Cell only find in just some of the ps3 Ss I believe that one was obvious as seens it was made smaller fiberglass to cut production Prices on ps3.
sophistry
sophistry
This is tricky but it can also be one of the important differences.That is an illistration. The voids and cracks from electromigration are microscipic and easily reconnected from slight changes in pressure.
I had an explosion effect and used it for visual purposes. It's not tlike they are burning to a crisp. Besides, even if some did there are many others that are on the verge of working and just haning on the edge of working. That's always the case, because the FlexIO can't maintail it's calibration if the bumps (or BGA for that matter) are marginal and constantly shifting impeedance during operation. When it gets just past the tippi g point, it begins failing. And then even miniscule changes in mounting pressure or temperature can cause it to work temporarily. Which can explain why people report being able to start the console after multiple attempts or heating it up first. Or a reflow, or completly unnecessary tokin replacment, or towel trick, or pressure test, or smacking the SOB upside the head a couple of times. The connection is precarious.
All can fail...Felix You said The Nec Tokins only work at 67c on Coks, now do you believe 67c is enough to make that Burned Parts inside the Nec Tokins??? I dont think so!
To find "the broken bump": (no need 50k dollar X-rays)
Take an expertly reballed PS3 that failed again, suspicious of "broken bumps". Then give it extreme pressure and see if it works.
If it works with the pressure, it should be the "broken bumps" since it cant be the big BGA anymore.
This has been found repeatedly and reliably in the Xbox 360 with the famous "bolt mods" and the papers support it. But never on a PS3.
I hope it makes sense.
Peope seem to have this idea in their head that solids are hard, unbendable, not at all maleble. And that is a known, demostrably incorrect perception. It's only because of our scale. At our size, human beings don't preceive the physical world the way it actually works. So we see things from a biased point of view.Slight changes in pressure affecting "the bumps"?
I disagree.
Why? Precisely because of your favorite thing, the underfill... You need a LOT of pressure (like a famous "bolt mod") to possibly affect "the bumps" since the area is smaller and the underfill is there protecting them. Would need to overcome its strength. Not something that can be done with bare hands, lightly flexing the board/hitting the machine... Reassembly...etc.
If smacking the top of the machine is changing the behavior...
You dont have a "precarious bump"... You have a precarious BGA that should be reballed. Many technicians will agree as we have seen this before, is not rare at all...
Oh yeah, the board was a liquid all this time. But dont worry about that, no argument there!Peope seem to have this idea in their head that solids are hard, unbendable, not at all maleble. And that is a known, demostrably incorrect perception. It's only because of our scale. At our size, human beings don't preceive the physical world the way it actually works. So we see things from a biased point of view.
If we were scaled up, say to the size of a sky scraper, when we walked the ground would have visable waves, ripples. Because the ground at that scale doesn't behave like a solid, it behaves like a viscous fluid. People have reported seeing visible undulations of the ground during earthquakes for example. They describe it as a shocking sight, to realize their understanding of the world and place in it is so incorrect (and vulnerable). People have been litterally thrown off the ground by these ground waves, and injured falling back down.
My point is on the larger scale solids behave like fluids. It's because they do bend, compress, droop, sag, and drip. They are just far more viscous. And on the microscopic these small variations are magnified. If it bends an impreceptable amount when you press on the chip, heat it up, or change mounting pressure, that can be all that's needed to connect a broken bump. Especially one that was teetering on the edge.
So even though it feels like you're not bending the solid unferfill, it's actull bending and compressing just like a fluid, on the microscopic level. These cracks are that thin.
You are applying your preception of how physics behaves on our scale to the microscopic scale of these cracks. Which is not how it actually works at that scale. They don't behave the way it makes sense at at our scale. So when you use a "solid's don't bend or compress" argument, you are doing so from an scale that doesn't apply to this situation.
And if you think this is wierd, it onky get's wierder the smalle you go. When you get into quantum effects (like we're talking about increasingly smaller processors) you really have to abandon logic and rely of the absurd explanation quantum physics has come up with to explain their experiments. Defying logic on our scale nearly completly.
Again, point is you are using a plausable sounding, yet fallious argument. = sophistry
Pseudoscience loves sophistry. It doesn't stand up to scrutany, but the target audiance is not the serious scientific community (who will tear it apart for the trash it is), but rather the general public who are desperate to believe what they want to, truth be damed!
Also, trolls love to use such arguments to create a sense of debate where none exists. It appears to onlookers that "the experts" dont agree, therefore they can believe whichever explanation they like better.
I think he is confusing electromigration with power surge. Very different things.
Electromigration is normal. Doesnt result from a fault. It's just an electrical phenomenon that has to be accounted for in the design of the processor.
Only a power surge would have the ability to burn out bumps and processor to a crisp, like he was talking about.
Slight changes in pressure affecting "the bumps"?
I disagree.
Why? Precisely because of your favorite thing, the underfill... You need a LOT of pressure (like a famous "bolt mod")
If it bends an impreceptable amount when you press on the chip, heat it up, or change mounting pressure, that can be all that's needed to connect a broken bump. Especially one that was teetering on the edge.
So even though it feels like you're not bending the solid underfill, it's actull bending and compressing just like a fluid, on the microscopic level. These cracks are that thin.
You keep saying that as if by doing so it will somehow convine me. I have explained my reasoning. I believe it is possable."Bolt mods" on the other hand, are indeed capable of compressing the solid underfill "as a fluid", like you say... And that way possibly affect the bumps at least temporarily.
Not something that can be easily done with bare hands.
The theory for bump defects is sound. It has already been proven to be an issue for most, if not all Nvidia chipsets during bumpgate. It is not my burdon to prove bumps. It lies on us to disprove it applies to the RSX. And I haven't heard anything that does.Where is "the broken bump"? Has anybody found it? How? How does it look like and how does it behave?
I proposed an experiment that has to do with the reply above:
I head what you said. Let me reiterate. It wont rule out the bumps.I ALREADY TOLD HOW TO DETECT BUMP FAILURE IN AN RSX GPU, SO CAN ANY BODY PAY ATENTION OR AT LEAST LIKE MY COMMENT, JUST DO WHAT I SAID ABOUT PRESSURE ON RSX VRAMS, I DON'T HAVE ANY BOARD NOW WITH RSX BGA/BUMP ISSUE SO I CANT TEST IT.
Those are common terms that people understand and give a good enough approximation for the idea. Viewers/readers require scientists to use common terms and illustrations to make an otherwise difficult to understand topic and easy one. In my experiance only people trying to hide their mistakes and culpability present the issue using tehcnical terms, in the hopes people wont understand.To bamboozle them.@RIP-Felix if you wanna absolutely Scientific tests then you shall know you don't use the words "break" or "burn out" when you trying to say that the bumps got Cracked.
This is tricky but it can also be one of the important differences.
Slight changes in pressure affecting "the bumps"?
I disagree.
Why? Precisely because of your favorite thing, the underfill... You need a LOT of pressure (like a famous "bolt mod") to possibly affect "the bumps" since the area is smaller and the underfill is there protecting them. Would need to overcome its strength. Not something that can be done with bare hands, lightly flexing the board/hitting the machine... Reassembly...etc.
If smacking the top of the machine is changing the behavior...
You dont have a "precarious bump"... You have a precarious BGA that should be reballed. Many technicians will agree as we have seen this before, is not rare at all...
Felix I get it, nobody has time to argue.I don't see the point in further argument. IMO it is just as reasonable to expect you to provde proof the bumps do not cause thermomechanical reconnection. But I've not heard single purposed test that would do so. And I have repeatedly stated without 3D xray, I cannot provide proof of the bumps to your satisfaction. In neither case does the lack of proof support either position.
The theory for bump defects is sound. It has already been proven to be an issue for most, if not all Nvidia chipsets during bumpgate. It is not my burdon to prove bumps. It lies on us to disprove it applies to the RSX. And I haven't heard anything that does.
The opposite is not possible. You keep attacking this point because you know we cant prove it's the bumps and your're hoping that will look like you're making a point. The only point your making is that we're all too poor to have a representative sample of RSX's sent to a 3D xray for silicon failure analysis. It doesn't mean it isn't there.
To find "the broken bump": (no need 50k dollar X-rays)
Take an expertly reballed PS3 that failed again, suspicious of "broken bumps". Then give it extreme pressure and see if it works.
If it works with the pressure, it should be the "broken bumps" since it cant be the big BGA anymore.
This has been found repeatedly and reliably in the Xbox 360 with the famous "bolt mods" and the papers support it. But never on a PS3.
I hope it makes sense.
I appreciate that you try to make peace (theres already peace by the way), but I need to reply fast because I dont want people to get confused like last time.ok guys looks like we have 2 different opinions about the 90nm gpu my self felix and dead end strongly believes that the bga is for replace. but the otherside of people that believe the reball is a permant fix they have the right to believe so its not a crime. but heres a neutral and logical answer if yours ps3 has a 3034 (gpu error) what would you do? reball the chip? or change it with a working one? and since there is a way to solder back a newer made gpu that produce less heat, cosumes less power and the phat heatsing can keep it twice as cooler compared to slim why not change it with 40 nm? for a peace of mind? reball the same gpu can be a two side blade, and replacement with a known working one or newer one would be my choice and that not only for ps3 but on anything with bga issues as long the said bga is not married to motherboard as the cpu of ps3-xbox 360. reaaly now continue to argue is pointless lets accept that we have different opinions and be done with it