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AMD Replacing Faulty Opteron Chips

malebolgia   on 28 April 2006 - 18:43 · 13 comments & 12154 views

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Advanced Micro Devices is trying to track down and replace as many as 3,000 faulty Opteron processors that could produce "inconsistent results" under an unusual circumstance.

The potential problem affects a number of single-core Opteron 152, 154, 252, 254, 852 and 854 processors manufactured in late 2005 or early 2006, AMD said Friday. The company hasn't seen the problem in production use, but has seen it in a test that combines high processor temperature, high outside temperature, and a large number of floating-point mathematical computations.

AMD is working with computer makers to track down the chips and is offering free replacements. The Sunnyvale, Calif.-based chipmaker has made PC processors for years, but only in 2003 entered the server market with the Opteron chip. Server chips typically offer higher performance, withstand higher heat, and have circuitry that lets several communicate in the same computer.

News source: C|Net News.com

Post a comment · Send to friend Comments · There are 13 additional comments
#1 lodgepole on 28 Apr 2006 - 19:39
At least they're being pro-active about it. Still can't be good for the stock price though.
(1 reply) #2 uber_noob on 28 Apr 2006 - 20:22
3000 chips isnt that much right?
#2.1 Croquant on 28 Apr 2006 - 23:29
Even considering that this is world-wide, that's still a fairly large amount of faulty chips.
Still, the problem isn't what I would call "critical" in that it affects every user who has one of these chips. For one thing, you'd have to be running the chip in a case that isn't being cooled externaly (read: Air Conditioned) and is running with just a stock heatsink.
I wouldn't compain if AMD gave me a free replacement chip though. Free is free, after all.
(4 replies) #3 protias on 28 Apr 2006 - 20:41
i just read about this on another forum and they said it really isn't all that bad unless you are doing a lot of cryptography. but i havent researched it so i am unable to validate the claims.
#3.1 Audhumla on 28 Apr 2006 - 22:18
Well, diligence is always a good thing.
#3.2 MadDog on 29 Apr 2006 - 05:00
Remember the big stink about the Pentium Pro floating point bug? That made the news headlines. This one has been much more low-key.
#3.3 WoodlandSpirit on 29 Apr 2006 - 12:12
This got me thinking about that, did Intel track down and replace all their faulty chips?
#3.4 Gobelet on 29 Apr 2006 - 23:50
Quote -
This got me thinking about that, did Intel track down and replace all their faulty chips?

You had to prove to them you had the bug, before getting a replacement. They got so much bad PR with that action that in the end they replaced the chips without asking the user to prove anything.
#4 Zirus on 29 Apr 2006 - 03:38
whew, I'm glad mine isn't affected.
(2 replies) #5 mr_skrilla on 30 Apr 2006 - 11:27
This doesn't even affect everyday users who play games and do graphics processing and stuff like that. The processor doesn't do enough work for the bug to show up for a normal user. Only in hardcore server environments does the bug even show up, let alone cause any problems.
#5.1 theyarecomingforyou on 30 Apr 2006 - 14:18
Not even there. The bug is pretty much theoretical and was only made possible through a synthetic application... a calculation has to be run exclusively many millions of times to be a problem, causing a localised heat build up. Then only if they outside temperature is high does it become an issue. Still, havings bugs in a processor is never good... I'm just amazed they spotted it.
#5.2 mr_skrilla on 30 Apr 2006 - 20:28
yes, it is amazing that it was spotted... and I think that it will actually help out the company by the proactive response that they have provided.
#6 aboy0110 on 01 May 2006 - 10:32
How do you know if you are using a Opteron 152, 154, 252, 254, 852 and 854 series processor....

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