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Technology Stocks : Advanced Micro Devices - Moderated (AMD)
AMD 259.65+2.3%Jan 23 9:30 AM EST
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To: aleph0 who wrote (231487)4/25/2007 1:52:15 PM
From: Joe NYCRead Replies (1) of 275872
 
If 1 or more cores were defect, how could one "flag" this such that the Die knows this ?

Is it "simply" a matter of setting a flag for example ?
... or does one have to "tweak" some connections or what ?

There must be fuses present to make exactly what you are saying possible. There is a functionality to disable individual cores in BIOSs (at least I have seen it in benchmarks of Intel QC chips). Those are temporary, blowing fuses in testing is permanent.

Also, there is a talk of functionality to fully power down a core, on demand, so there should be no problem to power it down permanently in testing / packaging. you would do this so that the disabled core is not using up any power.

Joe
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