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  1. Hello I have skylake c236 motherboard + xeon processor + ECC UDIMM memory I run "best practices analyzer" scan on hyper-v role on windows server 2012r2 And got error Title:Use RAM that provides error correction Severity Error Problem: The RAM in use on this computer is not error-correcting (ECC) RAM. Impact:Microsoft does not support on computers without error-correcting RAM. Then I tryed AIDA latest beta (from this topic https://forums.aida64.com/topic/3404-fixed-ecc-supported-but-disabled-skylake-imc/) DMI [ Memory Arrays / System Memory ] Memory Array Properties: Location Motherboard Memory Array Function System Memory Error Correction Single-bit ECC Max. Memory Capacity 64 GB Memory Devices 4 [ Memory Devices / DIMM_A1 ] Memory Device Properties: Form Factor DIMM Type DDR4 Type Detail Synchronous Size 16 GB Max. Clock Speed 2133 MHz Current Clock Speed 2133 MHz Total Width 64-bit (my note, this value must be 72-bit for ECC module) Data Width 64-bit Ranks 2 SPD [ DIMM1: Samsung M391A2K43BB1-CPB ] Memory Module Properties: Module Name Samsung M391A2K43BB1-CPB Serial Number 322136A0h (2687902002) Manufacture Date Week 15 / 2016 Module Size 16 GB (2 ranks, 16 banks) Module Type Unbuffered DIMM Memory Type DDR4 SDRAM Memory Speed DDR4-2133 (1066 MHz) Module Width 72 bit Module Voltage 1.2 V Error Detection Method ECC DRAM Manufacturer Samsung DRAM Stepping 00h SDRAM Die Count 1 Chipset [ North Bridge: Intel Skylake-S WS IMC ] Error Correction: ECC Supported, Enabled ChipKill ECC Not Supported RAID Not Supported ECC Scrubbing Not Supported Please answer, ECC is full enabled? Why windows server thinks it is not enabled?
  2. Hi guys, I put together a system with ECC memory but AIDA64 is showing ECC as supported but disabled. CPU: Xeon E3-1275V5 Motherboard: ASRock E3V5 WS (latest BIOS: 1.40) Memory: Crucial CT2K16G4WFD824A 2x16GB DDR4-2400 ECC UDIMM I have a CPU that supports ECC, ECC memory and a motherboard with a chipset that claims ECC support but doesn't mention ECC anywhere in the BIOS. So, is AIDA64 wrong and is ECC actually turned on? Or did ASrock screw up in the BIOS somewhere? Any other ways to check if ECC is enabled? I disabled the BIOS startup screen to watch it bootup but that didn't give any info on the memory detected. I attached the hardware report from AIDA64 if you guys want to take a look. Report.htm
  3. Hello, My system: Motherboard: Gigabyte GA-MA770T-UD3P (revision 1.1) CPU: Phenom II X4 925, RB-C2 stepping Memory: Kingston KVR1333D3E9SK4/16G (kit of four unbuffered ECC DDR3-1333 modules, 16 GB total, dual rank modules, each module has eighteen 256M x 8-bit FBGA) I manually underclocked the memory to 1066 MHz in BIOS. I left the timings as SPD auto-detected values for the 1066 MHz profile. Other values I set in the BIOS: DCTs Mode: Ganged DRAM ECC enable: Enabled DRAM MCE enable: Enabled Chip-Kill mode enable: Enabled DRAM ECC Redirection: Enabled DRAM background scrubber: 163.8us L2 cache background scrubb: 1.31ms DCache background scrubber: 5.24ms ... ... Bank Interleaving: Enabled Channel Interleave: Enabled Side-note: BIOS has no option for L3 cache background scrubbing. AIDA64 Extrene Edition 2.70.2200 prints: [ Memory Controller ] Memory Controller Properties: Error Detection Method: 64-bit ECC Error Correction: None Supported Memory Interleave: 1-Way Current Memory Interleave: 1-Way Supported Memory Speeds: 70ns, 60ns Supported Memory Types: SPM, EDO Supported Memory Voltages: 3.3V Maximum Memory Module Size: 1024 MB Memory Slots: 4 ...and somewhere under [ North Bridge: AMD K10 IMC ], it prints... Error Correction: ECC: Supported, Enabled ChipKill ECC: Supported, Enabled RAID: Not Supported DRAM Scrub Rate: 163.8 us L1 Data Cache Scrub Rate: 5.24 ms L2 Cache Scrub Rate: 1.31 ms L3 Cache Scrub Rate: Disabled Because the North Bridge report section says "ECC Supported: Enabled" but the Memory Controller report section prints "Error Correction: None", I am confused. Are my modules running in ECC mode? Another side-note...I underclocked to 1066 MHz because: with stock 1333 MHz (A) it will take several minutes just to POST in "Ganged Mode" if "Channel Interleave" is enabled and "Bank Interleaving" is disabled, and ( B ) my board won't POST in "Ganged Mode" if both "Bank Interleaving" and "Channel Interleave" is enabled. It POSTs fine at stock 1333 MHz in "Unganged Mode" with both "Bank Interleaving" and "Channel Interleave" enabled, but in that Unganged case, AIDA64 will print "ChipKill ECC: Supported, Disabled", regardless of whether I enable Chip-Kill in the BIOS. Thanks, Consumer
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