Earlier last week Intel quietly refreshed all Apollo Lake-based Celeron and Pentium CPUs. Those processors are based on the company low-power Goldmont microarchitecture. All B1 stepping dies will be transitioning to an F1 stepping. Intel stated it has identified an issue with the Low Pin Count (LPC), Real Time Clock (RTC), and SD Card interfaces on those CPUs “resulting in degradation of these signals at a rate higher than Intel’s quality goals after multiple years in service.” Apollo Lake Celeron and Pentium CPUs are part of Intel’s Internet of Things Group (IOTG) and come with an extended 15-year production availability.
The new updated SKUs have identical names to the previous SKUs but will be suffixed with an ‘E’. It’s worth noting that Intel is also officially retiring the ‘E’ suffix from the model numbers from IOTG SKUs. In Q4 2019 through Q1 2020, Intel will re-map all the F1 stepping SKUs to their respective non-‘E’ SKUs.
|Affected Apollo Lake SKUs|
|Celeron N3350(E)||2/2||1.1 GHz||2.4 GHz||HD Graphics 500||200 MHz||650 MHz|
|Celeron N4200(E)||4/4||1.1 GHz||2.5 GHz||HD Graphics 505||200 MHz||750 MHz|
|Celeron J3355(E)||2/2||2.0 GHz||2.5 GHz||HD Graphics 500||250 MHz||700 MHz|
|Celeron J3455(E)||4/4||1.5 GHz||2.3 GHz||HD Graphics 500||250 MHz||750 MHz|
History of Problems
This isn’t the first time Intel had issues with the LPC bus. Last year the company transitioned all their Atom E3800-series (Bay Trail) processors from D0 stepping to D1 stepping citing circuit design issues with the LPC bus degradation. More famously, Intel suffered a major circuit degradation problem with their entire Atom C2000 SoC line which has forced companies such as Cisco to replace many of their products.
Source: Intel PCN 117143-00.
- Intel Core i9-9900KS Special Edition Full Specs and Availability Announced
- Intel Launches Mainstream Cascade Lake Xeon W Workstation Processors
- Intel Launches New Comet Lake 10th Gen Mobile Processors With More Cores, LPDDR4X Memory
- Intel Cascade Lake Brings Hardware Mitigations, AI Acceleration, SCM Support
- Intel Discloses 9th Gen Core, Refreshes Core X, And Reintroduces STIM
- Hot Chips 30: Intel Kaby Lake G
- Intel Announces a 5 GHz Core i7-8086K, Launches on the 40th Anniversary of the 8086
- SC19: Aurora Supercomputer To Feature Intel First Exascale Xe GPGPU, 7nm Ponte Vecchio
- A Look at Cerebras Wafer-Scale Engine: Half Square Foot Silicon Chip
- Groq Tensor Streaming Processor Delivers 1 PetaOPS of Compute
- Arm Makes Headway In HPC, Cloud
- Intel Announces Keem Bay: 3rd Generation Movidius VPU
- A Look at Spring Crest: Intel Next-Generation DC Training Neural Processor
- Marvell Lays Out ARM Server Roadmap
- AMD Announces 3rd Gen Ryzen Threadripper
- Intel Launches Stratix 10 GX 10M; 10M LEs, Two Massive Interconnected Dies
- IBM Adds POWER9 AIO, Pushes for an Open Memory-Agnostic Interface