Why nvidia chips defective

But I get the message that this is probably not the best place to post. And only 3 notebook manufacturers have even been named anywhere. Apple, Dell and HP. My chip is about 18 months old, still no issues.

Care to figure that out? Game on it more than my desktop. Several hours a day. What you have done is come into the lion's den with false hope and lies. The ppl here are up on news. And we have brains of our own.

Coming in here telling us things we know to be false is just arrogant. We can't be lied to like some 15 year old school girl at the prom. You want to have a real discussion about the issue, we are all ears. To lie to our faces so to speak is appauling. And your claims of insurance companies and tech repairs has no fact to back it up other than your own words. Got any hard evidence?

Or are we to just take your word on everything? Having read you post I had to read it a second time to make sure I was reading correctly. Firstly, you said your chip was 18 month old and had not failed. Am I supposed to take that as a rule of thumb insofar as because yours hasn't failed then they are all ok?.

Is it not arrogant of you to assUme that everyone is as savy as youself? You even stated "The ppl here are up on news. Sorry for the caps but wanted to get the point across. You stated that only Dell, HP and Apple laptops were affected. I beg to differ. Sony, Asus and every other laptop with either the G84 or G86 or a swathe of other Nvidia chips are affected. As far as your comment of:- What you have done is come into the lion's den with false hope and lies is concerned none of the customers who got a replacement laptop thought that the expert evidence we provided filled them with false hope.

Nor did the courts think they were lies - hence the successful resolutions. The evidence available speaks for itself. But the question I have to ask is; Why. I would rather defend the victim than the perpetrator. Finally, if you cared to read topics at www. And if you cared to read the myriad informational links at www. So, before calling me a liar consider the evidence that Nvidia et al have put forward and then consider who the real liars are in this.

Just be thankful your laptop hasn't failed - otherwise you may need my services. In case you do, remember the domain, www. OK, I can conceed that there are other laptop manufacturers, as no one makes their own lappys, they have them made.

And I am sorry for sounding like such an ss. But you need to understand. That whole TDR issue at Vista's launch was fun. You remember, the one where everyone blamed NVIDIA's drivers only to find out poorly timed RAM or a bad PSU could cause the error resulting in a message stating your video card messed up even though it wasn't the card's fault.

Or how about everyone b! They all went off to ATi only to realize that it's no better over there. Hell, I still see flame posts about how crappy Vista is when in fact the OS is just fine and is light years ahead of XP. Every issue anyone can come up with can easily be explained. But people refuse to listen to reason and continue to flame. So coming in here and waving this flag sends shivers of days past up our spines a little. And yes, you did walk into the lion's den.

The regulars here do know what they are talking about. And no, it's not arrogance to proclaim that we actually have brains and can think for ourselves, thus don't need you or your thread here. If we feel a chip's issues are related to this issue, we can direct them to someone just fine on our own with no help from you. I know I've done it myself a few times before you got here. So I see no need of this on going debate. Like I've said before, I applaud what you are doing for some people, but I detest your half truths and sensationalism.

Which in turn makes me question your motives. This is done by putting in far more power bumps on the die than are ever needed from an average current point of view. If things are done right, no single bump will ever exceed the maximum current it can deliver. There is a lot of science here, it is not just simple over-provisioning. The Nvidia defective chips use a type of bump called high lead, and are now transitioning to a type called eutectic. Eutectic materials have two important properties, they have a low melting point and all components crystallize at the same temperature.

This means they are easier to work with, and form a good solid bond. It is a property, not a formula. Most if not all substrates use eutectic pads to attach the bumps to as well. If you use a eutectic pad with a eutectic bump, you get a much better connection than you do if you use a high lead bump with a eutectic pad. This is reflected in much higher yields, lower assembly costs, and a physically stronger connection as well. At this time, we have no good explanation as to why Nvidia chose to go the high lead bump on eutectic pad route.

High lead bumps have a much higher current capacity than eutectic bumps. When power is run through eutectic bumps, you get an effect called electromigration. This means that some of the materials are essentially pushed around by the current, and you get voids in the bump.

These voids lessen the capacity of the bump, and eventually they burn out. The more current you run through a eutectic bump, the quicker the electromigration. This is why chip vendors say that upping the voltage will shorten the lifespan of parts, it literally causes them to burn out quicker. On the good side, eutectic bumps are generally more flexible than high lead.

This means they are a bit more forgiving of stress. Some forces that would fracture a lead bump may be absorbed by a eutectic one without problems. Bumps overall are a multi-dimensional tradeoff between cost, assembly yield, current capacity and mechanical resilience among other things.

To call it a complex mess is being overly kind, package engineering is not for the faint of heart. From bump properties, we move on to thermal expansion of materials, and that is another piece to the puzzle.

Most materials expand as they warm up. If you have ever seen a mechanic trying to free a stuck bolt, they usually heat the nut with a blowtorch, this expands the nut and loosens it. The same thing happens with the die and substrate. When you turn on a chip, it heats and expands a little. This expansion is not much, but it is measurable. The substrate also heats and expands. The problem is that the die gets hot, and heats the substrate secondarily.

The silicon on the die has one rate of thermal expansion, the substrate has another, basically they get bigger at different rates. To complicate things further, remember the uneven and changing heating patterns discussion above? Parts of the die heat up and expand differently from other parts of the die. This changes quite quickly while in use. Why I get frame drops when i got alt tab. Rtx hopefully soon. Windows 11 cpu support. Kingston Factory Tour. Bappi Mohammed. Sudden fps drop on League of Legends.

Using Surround with laptop display. New RTX drivers problem. App advice. Ava Roger. Mar 26, 4, 0 23, I think it's a fairly safe bet that's exactly what OP just read and the reason for this thread. Rozbwen Distinguished. May 9, 39 0 18, 3. This is called binning and is not specific to Nvidia. But yes sometimes when yields are too high, manufacturers will disable higher quality chips to meet the demand for a lower quality one.

An example is that a while back AMD made a bunch of s. A lot of the s were fine but they needed to produce more s so they disabled the extra shaders through BIOS for the s so that they could sell them as s.

Mousemonkey Titan. Sep 3, 59, 16 92, 1, Rozbwen :. Mousemonkey :. And whilst it made a good selling point they then nobbled it later by laser cutting the the extra shaders so the cards couldn't be unlocked to full 's but people still bought them in the vain hope that they could be.

Sep 11, 6, 0 18, Boy does it make no sense to deliberately cripple a perfectly good chip. If they can be sold at the lower price, then they should be. It just means they are overpriced. But it is true that a good portion of lower end cards may actually be partially defective higher end card. If the bad part can be safely isolated, why not sell it for a discount?

Mahisse Distinguished. Nov 26, 1 19, Evil cooperations Evil cooperations everywhere! It's just plain business optimization. If you can't guarantee af full batch of the high end card which you can't it makes perfectly sense to make them in such way that you can guarantee a full batch of the lower end cards by some simple modifications of the defective high end cards. In fact it explains some the "overprice" since they have to cover the costs for making a high end cards but selling some of them as low ends.

May 11, 12, 1 48, 1,