say if one core dies?

[W2hCYK]

I just had the weirdest thought... in dual core procs, since both cores are different, and may preform differently............. say you overclock, one can handle the speed you push it to, the other bogs out and dies... what would happen? would it go single core and still work? or would it just crap out and die all together? just curious...

 

[djbbenn]

Good question. I must say I don't know and wouldn't mind knowing too, though I can take a good guess I think.

Since they are seperate cores, and you only use both cores when something is written to use both core (Windows XP with HT for example) I think it would still work if only one core, core only, died. It could be a matter that it depends on which core it is. I guess it would matter on what part that burnt out as well, say if something else besides the core got effected, it would probably have effects on the rest of the chip.

I really don't know, it could be different for AMD and Intel. But I think this is the kind of thing you shouldn't worry about.

-Dan

 

[spectre440]

Good question. I must say I don't know and wouldn't mind knowing

ditto.

 

[mex]

Well with Intell Chips not sure the pipe line would still be able to cope if one half failed it would just keep flushing,

AMD however, They are actually two procesors so it would good to find out what would happen.

 

[Dippyskoodlez]

It would most likely fail the POST and give you a dead cpu error. or show the bios screen and warn you. Im leaning more twards dead CPU errors.

if its the later, it depends on what dies. The core itself, it may be ok, but if the cache dies, both will most definatly fail as the cache is shared on some arent they?

 

[djbbenn]

Cache is dependent per core on all dual core afaik.

-Dan

 

[W2hCYK]

i cant wait to get my X2, and in 10 years or so, when its obsolete, I'll pop off the ihs, burn out a core with my butane lighter, and then run it again, and ill post back

lol... no.. i'd probably turn it into a keychain..

 

[Steven B]

"Well with Intell Chips not sure the pipe line would still be able to cope if one half failed it would just keep flushing" Intels dual core is also liek AMDs and is 2 seperate cores on one die. They both oc to the same amount, the max of the worse core, then the chip will start to shit out. You can tell if you run prime 95 x 2 and one gives you errors. ATM i think only the Itanium Monticello is a monolithic die dual core.

"Cache is dependent per core on all dual core afaik." Will change with the introduction of yonah.

 

[wtf8269]

i cant wait to get my X2, and in 10 years or so, when its obsolete, I'll pop off the ihs, burn out a core with my butane lighter, and then run it again, and ill post back

lol... no.. i'd probably turn it into a keychain..

Heh if you want to get technical x2's are already obsolete. There's always something faster... but I know what you mean. I bet if you Google around you might be able to find somebody that has had one of the cores die

 

[Deleted member 3]

Just put a defective Xeon next to a working one. Depending on how it's damaged it could work as single. Though a dual core processor actually says to the BIOS "hey I'm 2 CPU's" so the BIOS would try to use 2. With Xeons (or Opterons) it actually checks what's in the socket so CPU #2 could just be giving an error and be disabled.

My guess is that the whole CPU will be pwnd.

 

[infrared]

yeah, if it's registered as 2 cpu's your screwed, unless everything changed it's affinity to the living core. Interesting thought though.

 

[spectre440]

i cant wait to get my X2, and in 10 years or so, when its obsolete, I'll pop off the ihs, burn out a core with my butane lighter, and then run it again, and ill post back

lol... no.. i'd probably turn it into a keychain..

lol
try thinking more along the lines of 10 weeks...

 

[infrared]

lol... i'd love to see you rma a Processor that had been litterally torched!

Intel/AMD "WTF... this core is black and crispy, did you overclock?"
W2hCYK "No, i just held a butane lighter to it for a while"
Intel/AMD "Oh, that's ok then, we'll get another sent out soon"

hehe

 

[Dippyskoodlez]

lol... i'd love to see you rma a Processor that had been litterally torched!

Intel/AMD "WTF... this core is black and crispy, did you overclock?"
W2hCYK "No, i just held a butane lighter to it for a while"
Intel/AMD "Oh, that's ok then, we'll get another sent out soon"

hehe

thats highly illegal. and most definatly shouldnt be done

 

[infrared]

nope, i agree. Plus doing crap like that and rma'ing stuff, when you know that it's your fault it's screwed is out of line, 1. for the company, and 2. for the rest of us that must suffer higher prices.

If i knew my cpu was fried because of the 1.2ghz overclock, and a large overvolt, i'd just bin it and get a new, better one to play with. But then again, if it dropped dead @ 3.85 with a really low voltage and cool temps, i'd RMA it.

BTW, this post isn't aimed at anyone here.

 

[breakfromyou]

if a core died on a dual core system, the whole processor would be screwed.

might not be true on intel "double core" or whatever they're called where there are actually two physical cores instead of two cores in one.

 

[infrared]

I think there are two physical die's in the dual core processors.

It wouldn't be 2 cores if they just integrated 2 cores into one

 

[breakfromyou]

It wouldn't be 2 cores if they just integrated 2 cores into one

ever see an athlon x2 with the heatspreader popped off?

different from intels "core duo" crap where its physically 2 cores.

 

[Dippyskoodlez]

ever see an athlon x2 with the heatspreader popped off?

different from intels "core duo" crap where its physically 2 cores.

Intel's core duo is physically seperated because it uses a different approach that amd does. However, new core for it will continue the single die-ness. The core duo atm is just dual dothan basicly...

 

[Jimmy 2004]

My guess is that the whole CPU would die. It would be cool if there was some way of replacing individual cores - but I guess if you want that you might as well go for a dual CPU setup.

 

[Nyte]

Too many variables.

The CPU could die because of a power-gnd short assuming a electrical problem from the broken core.

The CPU could survive IF operations are not interleaved and not passed through the same CPU busline (Assuming both cores operate on a double-normal width bus).

Etc etc.