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The Xbox360 had four cores (IBM Power) but only three cores were enabled. And older AMD CPUs were released with 6 enabled cores out of 8 cores.
by frik 11y ago
The Xbox360 had four cores (IBM Power) but only three cores were enabled. And older AMD CPUs were released with 6 enabled cores out of 8 cores.
- GTP 11y agoWow, that's interesting! Do you know if somebody tried to enable one of this "extra cores"?
- jotm 11y agoHaha, of course they did. http://www.tomsguide.com/forum/id-2142984/amd-phenom-710-4th-core-unlock.html http://www.tomsguide.com/forum/id-2142984/amd-phenom-710-4th... AMD used to software-disable the 4th core on the Phenoms, but then they switched to disabling them by hardware, so that rendered any software means useless. AMD only disabled the cores to save on manufacturing - most of the time, these cores were not working properly. But as the process got better, people got 4 or more cores for the price of 2-3 :-D
- jevinskie 11y agoThe PS3 disabled 1/8 SPUs for yield and you can try to reenable it: http://ps3devwiki.com/ps3/Unlocking_the_8th_SPE http://ps3devwiki.com/ps3/Unlocking_the_8th_SPE Good luck if it turns out the disabled SPU is actually bad!
- ixtli 11y agoI seem to recall the ps4's Cell shipping with 2 out of 8 cores disabled because of the failure rate per wafer.
- scott_s 11y agoI spoke with the project lead for the XBox 360 chip, and I asked him: Why three cores? It's a strange number. He said it was to make Christmas.