Hmm, this is a question for some of the other home server and pro server members on here - I don't know the answer - but I did always have an expectation when building my X10SDV system that the core reason was so I could detect and correct errors, however, I always did have the impression that the OS and processor required this multi directional ECC support to perform some kind of "magic" and ensure that bits didn't flip as they were corrected and also reported to the OS.This is interesting since the same command only gives me “5” on 2 other systems that should be 100% ECC enabled (X10SLM with Xeon and C246 board with Xeon). Also the C246 system shows ECC “enabled” according to Memtest.
I was under the impression all ECC was only capable of correcting single bit errors and that multi bit referred to OS reporting of uncorrectable errors (extraordinarily rare).
You've got me curious too, but from other things I have read, I should have been expecting a "6" from WMIC, at least from my own computing experience and my rationale for ensuring I ECC this system to maintain what I have with my X10SDV system.
Anyone else reading the thread have insights on the Multi-bit aspect? I am going to go off and do some more reading, because I am curious.
Edit: are those Xeons that fit into X10SLMs supporting the same type of ECC as the Xeon D would (My Xeon D system uses ECC RDIMMs - is that the difference? I am thinking it is now) I guess I ask myself a question - are all Xeon's the same when it comes to ECC support? now off to do some reading, because I'm curious about this ECC stuff ..
Edit2: I also tried out another command on my X10SDV - which I have read elsewhere that needs to report back the following values as a validation that ECC is in fact running:
wmic MEMORYCHIP get DataWidth,TotalWidth
DataWidth TotalWidth
64 72
64 72
Interestingly enough, this is similar to what Kingston reports as the case for their ServerPremier (WS680 ACE/IPMI compatible modules) in their spec sheet.
DESCRIPTION SPECIFICATIONS KSM48E40BD8KM-32HM 32GB 2Rx8 4G x 72-Bit PC5-4800 CL40 288-Pin DIMM
Continued >> FEATURES Kingston's KSM48E40BD8KM-32HM is a 4G x 72-bit (32GB) DDR5-4800 CL40 SDRAM (Synchronous DRAM), 2Rx8, ECC, memory module, based on twenty 2G x 8-bit FBGA components.
On-Die ECC • x72 ECC (x36, 2 independent I/O sub channels) • 32 internal banks • Hard/Soft Post Package Repair • Sideband access with I3C/I2C • PCB: Height 1.23” (31.25mm) • RoHS Compliant and Halogen-Free
Unlike last time I did check Kingston - as I think stated by someone else here earlier it is now listed as compatible with the board - Memory for a ASUS - Pro WS W680-ACE / IPMI Motherboard - Kingston Technology
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