INQ称苹果知识库表明G92纯在缺陷

itany

Apple Knowledgebase says G92s are defectiveBumpgate You wanted proof...

By Charlie Demerjian: Tuesday, 14 October 2008, 8:29 AM





IT LOOKS LIKE Nvidia was being a little less than honest in screaming about desktop cards not being defective, at least according to Apple. The Apple knowledgebase, Radar, says that G92s are bad in desktop configs as well.

Our editors don't like us to use the phrase 'lying sacks' when referring to corporate entities, or their agents, so we will refrain this time. If you are not familiar with the story so far, the summary is that Nvidia announced a 'small' batch of bad chips. We said there was more. And more. And more. Nvidia dutifully denied it. We said it wasn't confined to laptops, Nvidia again denied it. We dug up why (Parts 1, 2, 3), and they downplayed it.

This sad state of denials was at it's most fevered pitch when we said that desktop parts were affected. Nvidia really doesn't want you to know that this is happening, especially if you are a stock analyst, it may cost the firm a lot of money.

The problem is that bridging the gap between defective chips and hardware failures is a tough thing to prove unless you have access to pools of reliability and warranty data. A single incident does not a trend make. We don't have all that data. Apple, however, does. Which is why its knowledgebase is so damning to Nvidia, take a look at these two entries.
(Note: numbers have been scrubbed to protect our sources)

-----------------------------------------------------------------
XX-Sep-2008 XX:XX PM xxxxxx :
Request to qualify Nvidia G92 GPU bump material change for M86 for known Nvidia bump crack issue in order to support MPS and enhance package robustness.
APN: XXXXXXXX
06-Sep-2008 03:27 PM xxxxx :
NVIDIA will transition from using high-lead solder (95%Pb/5%Sn) to eutectic solder (63%Sn/37%Pb) flip-chip bump material for the G92 product family. During the transition period NVIDIA will be supplying both high-lead and eutectic bump until inventory is depleted. No other materials are being changed.
-----------------------------------------------------------------

radar XXXXXXX Request to qualify Nvidia G92 GPU with bump material change for K3 CTO option
--
XX-Sep-2008 XX:XX PM xxxxx :
Request to qualify Nvidia G92 GPU bump material change for K3 CTO for known Nvidia bump crack issue in order to support MPS and enhance package robustness.
G92 MXM card part number: 631-0440 (Sam memory)/ 631-0556 (Hyn memory)
XX-Sep-2008 XX:XX PM xxxxxxx :
NVIDIA will transition from using high-lead solder (95%Pb/5%Sn) to eutectic solder (63%Sn/37%Pb) flip-chip bump material for the G92 product family. During the transition period NVIDIA will be supplying both high-lead and eutectic bump until inventory is depleted. No other materials are being changed.
-----------------------------------------------------------------

For those not fully up on Apple lingo, M86 is a tower machine, not a laptop, not even a slimline anything, and is in no way related to a portable box. K3 is the iMac which is sort of related to a laptop. The G92 is a desktop part, the G92 MXM is, but these are two different parts, and the MXM version may be a desktop part in a small form factor, that is unclear.
In any case, what you are seeing is Apple saying that desktop G92s, aka 8800GT/9800GTX/GT1xx, have a "known Nvidia bump crack issue". This one is going to be really tough to spin, especially after Nvidia's track record of honesty with Apple.

So there you have it, hard evidence that desktop parts are bad. Hard evidence that G92s are bad. Just like we told you. This also is strong corroborating evidence that the entire run of Nvidia 65 and 55nm parts with high-Pb solder and low-Tg underfill are defective.

As you can see from the second radar entry, changes of this magnitude mean a significant cost for the OEM in addition to being a royal pain in the ass. You simply do not change materials like this unless you absolutely have to, period. Nvidia has to. µ

Update:

After this was written, Nvidia's Mike Hara got back to us about the the G92. We asked him if there were any known problems with the G92. His response is as follows:
There are no known problems with G92s. They do use the same material set, but as I stated before, and will state again, they are not defective. They are NOT subject to the same thermal designs and usage patterns that our other parts have been subjected to (in notebook systems). Essentially, they do not operate anywhere near the critical temperature that causes the other parts to have abnormal failure rates.
There you have it, according to Nvidia, there are no problems with the G92. According to Apple, there are. Read this again carefully, I will leave it to the reader to decide on what to make of it. µ

itany

也不知道INQ到底怎么了，之前也没有看到有哪个网站这么执着的，NV不倒INQ是不甘心啊

cataclyson

这个有意思:whistling:

zx9512

不认识上面说的是些企么











































神墓 邻家有女初长成

winfast007

原帖由 yoloh 于 2008-10-15 09:00 发表
说实话，INQ作为一个知名媒体，说什么话都不会凭空捏造的，不掌握点东西，INQ绝对不敢如此公开曝光NV GPU的问题的。
试想，如果INQ真的是在诬陷NV，NV干嘛不告INQ。

他已经不止一次凭空捏造了，最早说台式机的G84 G86出文，然后上次说G92出问题，NV澄清了，就是不明白为啥NV不找律师团和他们喝喝咖啡{biggrin:]

doomonline

原帖由 winfast007 于 2008-10-15 10:48 发表


他已经不止一次凭空捏造了，最早说台式机的G84 G86出文，然后上次说G92出问题，NV澄清了，就是不明白为啥NV不找律师团和他们喝喝咖啡{biggrin:]

火星了吧,HP都已经证明台式机的G84 G86有问题了,INQ捏造什么了,Nv这么玩弄消费者,这么抽你们的脸你们还这么挺Nv,啥心理?5毛?

0004312815

最近不是盛传HP承认采用nv的台式机有问题么？

66666

如果NV的G9X系列有问题的话，那苹果怎么还会用NV的9400M来替代迅驰呢？:shifty:

itany

原帖由 66666 于 2008-10-15 11:09 发表
如果NV的G9X系列有问题的话，那苹果怎么还会用NV的9400M来替代迅驰呢？:shifty:

呵呵，从阴谋论的角度出发，如果真的有缺陷，那就是促进MacBook的及时更替，拉动消费

EveningRain

存在缺陷

gzcjb

没问题的话以NV的作风早跳出来要灭掉INQ了。{lol:]

gromit

原帖由 hdht 于 2008-10-15 13:39 发表
INQ什么时候变成负责任的媒体了？

INQ不是流言聚集地么……

也没有说它是负责任的媒体，大家只是奇怪NV不找回场子？

zhg9970025

前几天不是说HP证实NV的G84和G86存在缺陷吗？？

贼拉快

G92要是出问题 估计nv 就得倒了

kyo1165

原帖由 hdht 于 2008-10-15 14:48 发表
讲到底是啥问题？芯片脱焊？

nv卖芯片给hp，hp自己搞脱焊了怪谁啊……

{shocked:] {shocked:] {shocked:] {shocked:]