Earlier this week, Intel shook the DIY PC market, notably the huge mainstream phase, by revealing that its mid-tier B460 and entry-level H410 desktop motherboard chipsets won’t be suitable with 11th Gen Core “Rocket Lake-S” processors, and that solely its top-tier Z490 and H470, will. We have a proof into what is going on on, after consulting with individuals within the know, because of our buddies at Hardware Zone Israel, who spoke with sources inside Intel. It seems, that some batches of B460 and H410 PCH dies are re-badged from older generations of PCH, and constructed on the 22 nm silicon fabrication course of; whereas the Z490 and H470 are primarily based on a more moderen technology that is constructed on 14 nm. This is much like Intel’s transfer to carve out the B365 chipset from the older H170.
In addition to being restricted to an older model of Intel ME (Management Engine), the H460 and H410 PCH lack the power to speak with “Rocket Lake-S” processors over side-band, utilizing PMSYNC/PMDN alerts, a design change Intel launched with the “Tiger Lake” and “Rocket Lake” microarchitectures. The chipsets confronted no such limitation with “Comet Lake-S.” Intel’s choice to re-badge older 22 nm-class PCH silicon as B460 and H410 could have been dictated by the corporate’s 14 nm node quantity constraints. ScorchingHardware stories that some motherboard distributors, akin to GIGABYTE, discovered a intelligent (albeit costly) method round this limitation, by creating “V2” revisions of their current B460 and H410 motherboards, which really use the 14 nm H470 chipset.
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