Summary Tables of Changes

11th Generation Intel® Core™ Processor

Specification Update

ID	Date	Version	Classification
631123	03/01/2026		Intel Confidential

The following tables indicate the Specification Changes, Errata, Specification Clarifications or Documentation Changes, which apply to the listed processor stepping. Intel^® intends to fix some of the errata in a future stepping of the component, and to account for the other outstanding issues through documentation or Specification Changes as noted. These tables use the following notations:

Codes Used in Summary Table

Stepping	Description
(No mark) or (Blank Box)	This erratum is fixed in listed stepping or specification change does not apply to listed stepping.

Status	Description
Doc	Document change or update that is implemented.
Planned Fix	This erratum may be fixed in a future stepping of the product.
Fixed	This erratum has been previously fixed in Intel^® hardware, firmware, or software.
No Fix	There are no plans to fix this erratum.

Errata Summary Table

Erratum ID	Processor Line/Stepping							Title
Erratum ID	UP3	IOT UP3	UP4	H35	H81	UP3-Refresh	H35-Refresh	Title
TGL001	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	X87 FDP Value May be Saved Incorrectly In Real-Address Mode or Virtual-8086 Mode
TGL002	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Debug Exceptions May be Lost or Misreported When MOV SS or POP SS Instruction is Not Followed by a Write to SP
TGL003	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	CPUID L2 Cache Information May be Inaccurate
TGL004	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Placing Posted-Interrupt Descriptors Within the PRMRR May Result In a Processor Hang
TGL005	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Intel^® PT CBR Packet May be Delayed or Dropped
TGL006	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Intel^® PT TIP or FUP Packets May be Dropped Without OVF Packet
TGL007	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Overflow Flag in IA32_MC0_STATUS MSR May be Incorrectly Set
TGL008	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	An Exception During a 32-bit Mode Task Switch With CET Enabled May Lead to an Incorrect TSS Busy Flag Value
TGL009	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Exit Qualification For EPT Violations Incorrectly Indicate On Instruction Fetches That the Guest-Physical Address Was Writeable
TGL010	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Processor May Generate Spurious Page Faults On Shadow Stack Pages
TGL011	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	HDMI 1.4 Inter-Pair Skew Test May Fail
TGL012	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Intel^® PT ToPA Tables Read From Non-Cacheable Memory During an Intel^® TSX Transaction May Lead to Processor Hang
TGL013	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Performing an XACQUIRE to an Intel^® PT ToPA Table May Lead to Processor Hang
TGL014	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	PECI Frequency Limited to 3.2Kbps-1Mbps
TGL015	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	PCIe* Gen4 JTOL – Jitter Tolerance Compliance Test May Fail
TGL016	Fixed	Fixed	N/A	N/A	N/A	N/A	N/A	System May Fail To Exit Warm Reset or S3
TGL017	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Unable to Transmit Modified Compliance Test Pattern At 2.5 GT/S or 5.0 GT/s Link Speeds
TGL018	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	MSR IA32_THERM_STATUS CURRENT_LIMIT_STATUS May Report Incorrect Value
TGL019	Fixed	Fixed	N/A	N/A	N/A	N/A	N/A	System May Hang During Package-C10 Exit
TGL020	Fixed	Fixed	N/A	N/A	N/A	N/A	N/A	Processor May Hang When PROCHOT# is Active
TGL021	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Processor May Hang if Warm Reset Triggers During BIOS Initialization
TGL022	Fixed	Fixed	Fixed	Fixed	N/A	N/A	N/A	PCIe* Link_Down May Occur After Exiting From Package C10 Cycle
TGL023	No Fix	No Fix	N/A	N/A	N/A	N/A	N/A	Reported Package Power May Not be Accurate
TGL024	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	USB TD.6.5 Polling.LFPS Duration Test Fail on Direct Port
TGL025	Fixed	Fixed	Fixed	N/A	N/A	N/A	N/A	Cache Configuration May be Incorrectly Initialized During Boot
TGL026	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A. Erratum has been removed.
TGL027	No Fix	No Fix	No Fix	N/A	N/A	N/A	N/A	Processor PCIe* Reference Clock May be Unavailable if CLKREQ# is Asserted During L1.2 Entry
TGL028	Fixed	Fixed	Fixed	N/A	N/A	N/A	N/A	Processor PCIe* May Hang Following PKG-C10
TGL029	N/A	N/A	N/A	N/A	No Fix	N/A	N/A	PCIe* Width Change Transition May Fail
TGL030	Fixed	Fixed	N/A	Fixed	Fixed	Fixed	Fixed	DDR4 1Rx16 DIMMs Cannot Achieve Optimal Memory Configuration
TGL031	Fixed	Fixed	Fixed	Fixed	N/A	N/A	N/A	Incorrect Core Operating Voltage May Lead To Unpredictable System Behavior
TGL032	Fixed	Fixed	Fixed	Fixed	N/A	N/A	N/A	Processor May Hang on PKG C9 or Deeper Exit
TGL033	Fixed	Fixed	Fixed	Fixed	N/A	N/A	N/A	Processor May Hang on Pkg C10 Exit
TGL034	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Executing an XSAVE or VZEROALL Instruction After SYSENTER May Result in Unexpected SSE/AVX Register Values
TGL035	Fixed	Fixed	Fixed	Fixed	N/A	N/A	N/A	Processor May Fail to Resume From Package C10
TGL036	Fixed	Fixed	Fixed	Fixed	N/A	Fixed	Fixed	PkgC7 or Deeper Exits May Lead to Display Flicker
TGL037	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	VCVTPS2PH To Memory May Update MXCSR in The Case of a Fault on the Store
TGL038	Fixed	Fixed	Fixed	N/A	N/A	N/A	N/A	Memory Contents May Not be Accessible After a Warm Reset
TGL039	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Processor May Generate Malformed TLP
TGL040	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	System May Experience an Internal Timeout Error When Directing Intel^® PT to a Small, Uncacheable, Single-Range Output Buffer
TGL041	N/A	N/A	N/A	N/A	N/A	N/A	N/A	N/A. Erratum has been removed.
TGL042	N/A	N/A	N/A	N/A	Fixed	N/A	N/A	Spurious FIVR OCP Event May Occur During Boot
TGL043	N/A	N/A	N/A	N/A	Fixed	N/A	N/A	Embedded Display Flicker May be Observed During Idle Scenarios
TGL044	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	False MC1 Error Reported in The Shadow of an Internal Timer Error
TGL045	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	PCIe* Link May Fail to Train Upon Exit From L1.2
TGL046	N/A	N/A	N/A	N/A	Fixed	N/A	N/A	DMI Link Failure During L1 Exit
TGL047	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Setting MISC_FEATURE_CONTROL.DISABLE_THREE_STRIKE_CNT Does Not Prevent The Three-strike Counter From Incrementing
TGL048	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Intel^® PT TIP.PGD May Not Have Target IP Payload
TGL049	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Intel^® Processor Trace PSB+ Packets May Contain Unexpected Packets
TGL050	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Intel^® PT Trace May Drop Second Byte of CYC Packet
TGL051	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	VM Entry That Clears TraceEn May Generate a FUP
TGL052	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Intel^® PT Trace May Contain Incorrect Data When Configured With Single Range Output Larger Than 4KB
TGL053	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	On Instructions Longer Than 15 Bytes, #GP Exception is Prioritized And Delivered Over #CP Exception
TGL054	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Mismatch on DR6 Value When Breakpoint Match is on Bitmap Address
TGL055	Fixed	Fixed	Fixed	Fixed	N/A	N/A	N/A	Unaligned CET-SS Stack Token Does Not Signal #GP
TGL056	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	USB 3.0 Device May Not be Detected or May Down Train to USB 2.0 Speed
TGL057	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Call Instruction Wrapping Around The 32-bit Address Boundary May Return to Incorrect Address
TGL058	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	USB 3.2 Gen 1x1 Port Does Not Send 16 Polling LFPS Burst
TGL059	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Incorrect MCACOD For L2 Prefetch MCE
TGL060	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Crashlog and Telemetry BAR May Not Function Correctly
TGL061	N/A	N/A	N/A	N/A	Fixed	Fixed	Fixed	LFENCE Instruction May Not Prevent FSFP Forwarding
TGL062	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	GPU Hang When Async Compute is Enabled
TGL063	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	Branch Predictor May Produce Incorrect Instruction Pointer
TGL064	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Processor May Encrypt TME Exclude Range if Mapped to Remap Range
TGL065	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	xHCI Force Header Command Incorrect Return Code
TGL066	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	USB Type-C Monitor Removal May Result In System Hang
TGL067	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	USB 3.2 DbC Sublink Speed Attribute ID (SSID) Value
TGL068	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	Processor May Hang During a Microcode Update
TGL069	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	xHCI Out of Order ACK Due to LCRD1
TGL070	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	xHCI Controller Hang With Zero-Length Data Packet
TGL071	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Intel® PT Incorrect CR3-Filtering
TGL072	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Incorrect Last Branch From Value in BTS Branch Record During a Task Switch
TGL073	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	No Fix	Certain VMCS Fields May be Incorrect During STM to VMX Transitions
TGL074	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	Fixed	MPX_FUSE_OVERRIDE Register May Trigger General Protection Fault

Specification Changes

No.	Specification Changes
001	HDCP 2.2 not supported in certain modes for DP1.4a interface.
002	DP-in support of both LTTPR transparent and non-transparent modes.

Specification Clarifications

No.	Specification Clarifications
	None for this revision of this specification update.

Documentation Changes

No.	Documentation Changes
	None for this revision of this specification update.