Intel Microcode Induced “Unsupported CPU” BSOD Subject, New BIOS With Up to date Microcode Coming Quickly

Intel’s personal microcode has been discovered to be the perpetrator inflicting varied “Unsupported CPU” BSOD points on thirteenth Gen CPUs & the corporate is already engaged on a brand new microcode.

Intel, Not Motherboard Makers, To Be Blamed For “Unsupported CPU” BSOD Points, New Microcode On The Method

Final month, we noticed a number of instances of BSODs on Intel platforms working the newest thirteenth Gen CPUs. The error code was very uncommon because it talked about “Unsupported Processor” when working a thirteenth Gen CPU on a 600 or 700-series motherboard.

Initially, the difficulty was recognized with MSI boards however extra just lately, we’ve got seen this difficulty come up on motherboards from different manufacturers as nicely together with ASUS and Gigabyte. MSI was fast to present affected customers a brief workaround nevertheless it seems to be like Intel themselves have gotten to the underside of this difficulty which isn’t attributable to the motherboards however in actual fact, it has to do with the newest micro-code.

• This difficulty impacts processors with CPUID 0xB0671, OxBO6A2, or OxBO6A3.
• Processors with CPUID OxBO6F2 and OxBO6F5 usually are not affected.

In its newest assertion, Intel states that its newest microcode for thirteenth Gen Raptor Lake CPUs, variations 0x119 and 0x4119 (launched in June 2023), have mismatched GDS_NO flag values between P-Cores & E-Cores. This difficulty impacts processors with the IDs 0xB0671, 0xB06A2, and 0xB06A3. The CPU IDs may be cross-referenced from the next desk (Supply: Intel):

The opposite two IDs which embrace thirteenth Gen CPUs (0xB06F2) and 0xB06F5) usually are not affected however Intel is stating that anybody working an affected CPU with microcode model 0x119 or 0x4119 might get a blue display screen (BSOD) after updating to the newest Home windows Updates. These updates are listed under:

• Microsoft* Home windows* 11 22H2 (OS Construct 22621.2215): KB5029351
• Microsoft* Home windows* 11 21H2 (OS Construct 22000.2360): KB5029332
• Microsoft* Home windows* 10 22H2 (OS Construct 19045.3393): KB5029331

Intel additionally states that whereas the short-term workaround resolves the difficulty and results in no additional BSODs, the corporate will nonetheless be getting ready a brand new microcode to completely eradicate the difficulty. These newest microcode variations can be 0x11D and 0x411D and will likely be launched for the affected thirteenth Gen Raptor Lake CPUs. If you wish to use the newest Microsoft Home windows replace, then Intel makes issues clear to replace your PC to the newest microcode model. Motherboard makers can even roll out the BIOS updates with the newest CPU microcode very quickly.