Intel also announced a C0 to D0 stepping change for Intel's Core i7 Model 920 only (low end, 8M L3 2.66 GHz 4.8 GT/s LGA1366). This update is fully electrically and mechanically compatible, but will also require a new BIOS update.
The readable ink swatch is now removed in D0 stepping Core i7 CPUs.
From the announcement PDF:
"Intel is initiating a C-0 to D-0 stepping conversion for the Intel® Core™ i7-920 processor where it will undergo the following changes:
o New S-spec and Material Master numbers for the converting products.
o CPUID will change from 0x000106A4 to 0x000106A5.
o The electrical, mechanical and thermal specifications remain within the current specifications. Intel anticipates no changes to customer platforms designed to previous Intel guidelines.
o Readable serial number will be removed from the package ink swatch to fully mitigate the potential risk of the IHS cosmetically overlapping a marked serial number. There is no change to the ULT matrix content which continues to contain the serial number."
Source: http://www.tgdaily.com/content/view/41273/139/]TGDaily[/url]
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