Intel B460 and H410 Incompatibility with “Rocket Lake” Explained
Before this week, Intel shook the Do it yourself Computer current market, notably the huge mainstream segment, by revealing that its mid-tier B460 and entry-degree H410 desktop motherboard chipsets will not be compatible with 11th Gen Main “Rocket Lake-S” processors, and that only its prime-tier Z490 and H470, will. We have an clarification into what is heading on, just after consulting with people in the know, many thanks to our friends at Hardware Zone Israel, who spoke with resources inside of Intel. It turns out, that some batches of B460 and H410 PCH dies are re-badged from more mature generations of PCH, and developed on the 22 nm silicon fabrication system whilst the Z490 and H470 are centered on a more recent era that’s crafted on 14 nm. This is very similar to Intel’s move to carve out the B365 chipset from the more mature H170.
In addition to being constrained to an older variation of Intel ME (Management Engine), the H460 and H410 PCH deficiency the means to connect with “Rocket Lake-S” processors over side-band, using PMSYNC/PMDN signals, a structure modify Intel launched with the “Tiger Lake” and “Rocket Lake” microarchitectures. The chipsets faced no these limitation with “Comet Lake-S.” Intel’s decision to re-badge older 22 nm-class PCH silicon as B460 and H410 may possibly have been dictated by the firm’s fourteen nm node volume constraints. HotHardware experiences that some motherboard distributors, these types of as GIGABYTE, found a clever (albeit high-priced) way all-around this limitation, by building “V2” revisions of their existing B460 and H410 motherboards, which essentially use the fourteen nm H470 chipset.