Hi everyone,
I’m having an issue with the option “Ignore vendor programmed fuses that limit max. DRAM frequency”. When I enable said option my laptop will turn on but the screen stays black and “nothing” happens. The only option to recover the laptop is to install a 1600MHz stick, that will limit the other 2133MHz stick to 1600MHz and to reflash a coreboot build with above mentioned option turned off.
My laptop is a Lenovo Thinkpad T430 without a dGPU (i.e. only Intel HD4000 iGPU). As far as I can recall the memory worked at its maximum frequency (2133MHz) fine when using the Lenovo OEM BIOS.
I’m using coreboot v4.12 with SeaBIOS v1.13.0 and use libgfxinit. I also tried using the VGA option ROM but to no avail.
I've appended the output of /dmidecode -t memory/ and /dmidecode -t processor/ and /uname -r/ below.
Does anyone else has this issue?
How do I debug this issue?
Evgeny Zinoviev pointed me some time ago to the optional use of the mrc.bin for the X220 [1] and someone trying to use the mrc.bin for the T430 [2]. Could I somehow use the mrc.bin approach for the X220 in [2] in conjunction with [1] and [3] to allow the optional use of the mrc.bin for the T430?
Kind regards
lhochstetter
[1] https://review.coreboot.org/c/coreboot/+/37153 [2] https://review.coreboot.org/c/coreboot/+/23489 [3] https://review.coreboot.org/c/coreboot/+/32500
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/uname -r:
/4.19.0-11-amd64 (Debian 4.19.146-1) // Here is the output of /dmidecode -t memory/ and /dmidecode -t processor/:
# dmidecode 3.2 Getting SMBIOS data from sysfs. SMBIOS 2.8 present.
Handle 0x000A, DMI type 17, 40 bytes Memory Device Array Handle: 0x0000 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: SODIMM Set: None Locator: Channel-0-DIMM-0 Bank Locator: BANK 0 Type: DDR3 Type Detail: Synchronous Speed: 800 MT/s Manufacturer: Kingston Serial Number: 4a2d6e3a Asset Tag: Not Specified Part Number: KHX2133C11S3L/8G Rank: 2 Configured Memory Speed: 800 MT/s Minimum Voltage: Unknown Maximum Voltage: Unknown Configured Voltage: Unknown
Handle 0x000B, DMI type 17, 40 bytes Memory Device Array Handle: 0x0000 Error Information Handle: Not Provided Total Width: 64 bits Data Width: 64 bits Size: 8192 MB Form Factor: SODIMM Set: None Locator: Channel-1-DIMM-0 Bank Locator: BANK 0 Type: DDR3 Type Detail: Synchronous Speed: 800 MT/s Manufacturer: Kingston Serial Number: 4b2d703a Asset Tag: Not Specified Part Number: KHX2133C11S3L/8G Rank: 2 Configured Memory Speed: 800 MT/s Minimum Voltage: Unknown Maximum Voltage: Unknown Configured Voltage: Unknown
Handle 0x0004, DMI type 4, 42 bytes Processor Information Socket Designation: Not Specified Type: Central Processor Family: Pentium Pro Manufacturer: GenuineIntel ID: A9 06 03 00 FF FB EB BF Signature: Type 0, Family 6, Model 58, Stepping 9 Flags: FPU (Floating-point unit on-chip) VME (Virtual mode extension) DE (Debugging extension) PSE (Page size extension) TSC (Time stamp counter) MSR (Model specific registers) PAE (Physical address extension) MCE (Machine check exception) CX8 (CMPXCHG8 instruction supported) APIC (On-chip APIC hardware supported) SEP (Fast system call) MTRR (Memory type range registers) PGE (Page global enable) MCA (Machine check architecture) CMOV (Conditional move instruction supported) PAT (Page attribute table) PSE-36 (36-bit page size extension) CLFSH (CLFLUSH instruction supported) DS (Debug store) ACPI (ACPI supported) MMX (MMX technology supported) FXSR (FXSAVE and FXSTOR instructions supported) SSE (Streaming SIMD extensions) SSE2 (Streaming SIMD extensions 2) SS (Self-snoop) HTT (Multi-threading) TM (Thermal monitor supported) PBE (Pending break enabled) Version: Intel(R) Core(TM) i7-3840QM CPU @ 2.80GHz Voltage: Unknown External Clock: Unknown Max Speed: Unknown Current Speed: Unknown Status: Unpopulated Upgrade: Unknown L1 Cache Handle: 0x0006 L2 Cache Handle: 0x0007 L3 Cache Handle: 0x0008 Serial Number: Not Specified Asset Tag: Not Specified Part Number: Not Specified Core Count: 4 Core Enabled: 4 Characteristics: None