Questions tagged [ecc]

Error-correcting code, as in a type of memory that can correct single-bit errors. ECC memory is typically found on servers and workstations, where maximum reliability is required.

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Archive data over multiple DVDs with Error correction and Encryption

My hard drive crashed and I almost lost 2 years worth data. Backup lesson revisited!! That being said, I managed to rebuild a collection of some 15GB of data I'd like to keep safe. It took me a while ...
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amd64_edac_mod.ko(Error Detection and Correction driver) not loading with the latest kernel to check RAS

I am trying to enable ECC to confirm RAS feature in ubuntu-18.04 Its GIGABYTE BIOS mode, I have checked ECC option, but it is not present. and details of server is: :~$ lscpu Architecture: ...
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Do 32GB DDR4 SO-DIMM ECC memory modules exist?

I'd like to buy a couple modules for a laptop, but I can't seem to find any when I search on Google. For example, I tried searching for things like "32gb" "pcie" "nvme" "ecc" "sdd" and "32gb" "m.2" "...
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what is the size of public key for ecdsa spec256r1

I tried to generate pair key for ecdsa using openssl. Why the public key length is 65 bytes and not 64? Create private key openssl ecparam -genkey -name secp256r1 -noout -out private.pem Generate ...
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Is this samsung memory ECC or not

i have question about memory name, everywhere in shops, i could find module like this: https://www.amazon.com/Samsung-1866MHzCL13-RegECC-Internal-M393B2G70DB0-CMA/dp/B00T3CJ6OW You could see in name "...
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Does ECC RAM with a Coffee Lake CPU need specific motherboard support?

I'm preparing to build a new computer, and I'd like to use ECC RAM if possible. In the past, that required a motherboard with ECC support, but these days it's unclear whether that's still true. The ...
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Nginx server return duplicate intermediate cert when enable both ECC and RSA cert in Nginx

I have configured Nginx to support both ECC and RSA cert in a hybrid mode. After enabling, used below cmd to get the full chain cert from my server: openssl s_client -showcerts -connect server:443 -...
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How come bit flips aren't destroying my computer?

Tech YouTuber ThioJoe made a video about ECC memory, in which he explained how bits in memory can randomly change and can lead to data corruption if you don't have ECC memory. Here's what an article ...
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How to change cipher & elliptical curve priority/order in Firefox?

Bugzilla.mozilla.org dev's suggest this was added a couple of years ago (references below) however I see no information anywhere or any options under about:config to accomplish this... I only see ...
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Dell poweredge T310 memory upgrade issue

I have a Dell PowerEdge T310. It's specs state it supports 6 x 4GB RAM. I wanted to upgrade my ram, from 8GB to 24GB. Since it has two 4GB 1333 registered ecc sticks I bought four more sticks with ...
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Hardware protection against bit-flips during I/O between storage and DRAM?

If a motherboard supports ECC DRAM, then it has a 72 bit bus between the DRAM slot and the memory controller. 64 data bits + 8 parity bits for SECDED. Nowadays, most CPUs have the memory controller ...
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Home NAS RAM questions

Just trying to build a Home NAS system with the Ryzen 3 2200G CPU and ASROCK AB350 Gaming-ITX/ac board. Since I'm going to use ZFS, I guess the ECC memory is a must-have. As I'm quite new to building ...
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Memory Error to Serial Number

My server recently rebooted, and the error logs show that there was a multi-bit ECC error. Apparently this has been happening for a while now, so I will be replacing the memory stick. Is there a way ...
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487 views

Is registered ram the same as ECC ram?

Registered (often referred to as "buffered") memory uses a technology that is often paired with, but not directly related to, ECC RAM. Registered memory has a "register" that resides between the RAM ...
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ECC alternative for real time RAM error checking/handling?

I had 2 days of labor lost when compiling and getting errors. I finally ran memtest and found that one of my 6 year old stick of GSKILL ram had errors(by the way... they never replied to the RMA ...
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When consumer motherboards state they “support ECC”, do they mean “as fully as server boards”, or only somewhat?

A number of modern consumer boards state they "support ECC" when used with RDIMMs + Xeon, for example, this ASROCK X99 board. But the documentation never seems to say (for any brand, not just this ...
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How do channels and rank interact if using pair-matched RDIMMs?

So, my Supermicro X10 R3 board has a single CPU with 8 DDR4 DIMM slots. When fully loaded it has 2 DIMM pairs in each channel x 4 channels (I think). I always use only matched pairs of DIMMs. The ...
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348 views

OpenSSL Handshake failed, point is not on curve

When I try to connect a SSL/TLS client (OpenSSL 1.0.0d) to an SSL/TLS server (OpenSSL 1.0.2), sometimes the handshake fails and errors with point is not on curve, and decryption failed or bad record ...
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453 views

Can a DDR3 ECC module be used in a slot without ECC?

I have tried for a while to use a DDR3 SODIMM module with ECC on the VC709. While I can get the memory that ships with it (Single Rank, 204 PIN, 64 Data Lines) to work easy enough, I cannot get a ...
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7k views

Memory types - PC3L-12800R vs PC3L-12800E

I'm trying to determine if a specific memory module (which I have not yet acquired) will work with my server. My server is an Acer Altos T310 P3 server, and currently has a single 8GIG DIMM in it. ...
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How to get ECSDA with p-256 and SHA256 in openSSL?

Apple requests to its APNS must use JWT (JSON Web Token) signed using a Elliptic Curve Digital Signature Algorithm aka ECSDA using a p-256 curve and a SHA256 hash. How can you sign with such params in ...
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888 views

Does ECC RAM help in a home-use NAS?

Do i need to use ECC RAM if i'm only going to use a 100TB Server for video file storing, organizing and copying files on and off of it ? The build will be Asrock X370 Taichi + Ryzen 3 + Windows 10 ...
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What exactly is the cause of RAM incompatibility?

I'm looking at rather short QVL lists from manufacturers, and I'm wondering what is the underlying cause of RAM incompatibility aside from the obvious: Obvious Reasons for Incompatibility RAM ...
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DDR4 RAM vs. DDR3 and EEC vs. Non-EEC

I am about to upgrade my DELL XPS 8900 and add 64GB memory to it, I have found that the montherboard of DELL XPS 8900 does support that kind of capacity. However I have a hard time picking up the ...
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582 views

Does non-ECC RAM work in a ECC motherboard?

I have HP Workstation xw4600 (datasheet) with two ECC RAM modules in it. I want buy more RAM modules, specifically two regular non-ECC DDR2 800 MHz. Will these non-ECC RAMs work with this ECC ...
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Why EDAC sbridge: ECC is disabled. Aborting

I have a server with 4 x ECC memory and I installed CentOS 7+ I got EDAC sbridge: ECC is disabled. Aborting when boot up but if I use memtest86 test I can see my memory is ECC memory and enable, the ...
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How to test whether ECC is working properly?

According to AMD Ryzen supports ECC memory, but they did not validate it, so we don't know whether this feature works properly. Is there a way to test whether ECC is working properly? Afaik. memtest86+...
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73 views

RAM for a Dell PowerEdge server

I need to order RAM for a Dell PowerEdge server. It came with 4GB RAM. Specs: 4 UDIMM slots, support up to 32GB 1600MT/s DDR3 Error Correction Code (ECC) memory I would like to add 8 or 16GB RAM. ...
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Server 2003 system config file corrupt, which is run inside of VMWare. How to fix?

I'm using ecc 6.0 software in Server 2003 through VMWare, suddenly system32 config system file corrupt of Server 2003. Is there any process to fix this without uninstalling or change data of ecc6.0? ...
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How to tell if my server REQUIRES ECC RAM?

I know ECC is recommended for servers, but do certain pieces of hardware REQUIRE you to have it? If so, which component? e.g: CPU, motherboard
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How is it possible that WinRar can repair any volume with any single one of .rev files?

There is already a similar question(and 2 solid answers), but mine is a little bit different. Suppose you create a 5-volume archive + 3 recovery volumes(.rev files). This is supposed to reconstruct ...
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Can someone advise on DL380 G5 RAM, what is the difference between these DIMMs?

I have 3x DL380 G5 servers that were second hand retired ones. One of the servers, I populated with 4x 4GB DIMMs, and 4x 1GB DIMMs. Everything was working away merrily, and I decided to purchase some ...
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236 views

RAM for Lenovo Thinkserver TS 440

I am setting up a new Lenovo Thinkserver TS440 in my home as a workstation and as a test server. Here is the system I purchased: http://www.tigerdirect.com/applications/SearchTools/item-details.asp?...
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GA-H170N-WIFI motherboard compatible memory

I bought GA-H170N-WIFI and since it can handle 32GB of DDR4 I want to buy two 16GB modules but can't find them. I found some cheap 16GB modules selling at my location but they are marked Buffered (or ...
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2k views

ECC ram memory in MSI X99S

I bought motherboard MSI X99S Krait Edition and I found 1x16 GB RAM DDR4 with ECC. Can I run motherboard with this RAM? I don't know if it supports ECC. Where I can find? Can I use ECC memory on non-...
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What is more likely? storage bit rot (e.g.URE) or ram memory bit rot?

The background to the question is that on most computersystems data can corrupted at several places. The questions asks about the relative problems connceted with two places of such data-rot/data-...
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L3 data cache ECC error

I happened to have a terminal window open in Linux (Debian) and, as I was browsing the web, I heard a beep so I looked to see what happened and I found the following message in the terminal window: ...
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How to force a server to use a specific elliptic curve at the beginning of the handshake via openssl?

Is there a possibility or command in openssl to force a server to use a specific elliptic curve that I am requesting with a certificate or key? Can I "ask" the process the curves it is able to use?
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get x and y components of ec public key using openssl

I am generating a KeyPair for ECC from curve 'secp128r1' using openssl Steps I followed : first I generated a private key using the command openssl ecparam -genkey -name secp128r1 -noout -out ...
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How do I tell if my Memory is ECC or Non-ECC?

I need to replace the memory in my system and I'm not quite sure how to determine if the memory is ECC or Non-ECC. How do I determine this?
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Fully-Buffered RAM on a SuperMicro board?

My home server has a SuperMicro X7SBi board. Currently, I have 4GB ECC RAM (4x 1GB) installed. According to the spec page on SuperMicro's site, the board takes unbuffered RAM. A friend has a large ...
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883 views

Specific board/module ECC Ram compatibility

I purchased a bunch of hardware for two different file servers. Previously I had never bought any server equipment, and therefore had not known that motherboards accept only certain types of ECC Ram. ...
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ECC errors, no Mem Test Errors

I recently purchased an HP XW6400 workstation (Dual CPU, Quad memory channels) Along with the computer I purchased 2 sticks of RAM that are the same brand and look, but not matching (numbers and ...
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Theoretical behaviour of RAM if single read/write error

The topic is not a broken RAM. A good RAM can also have occasionally errors when reading/writing; non-ECC RAMs more than ECC RAMs, but errors are possible with both types. My question is, when ...
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Is there a benefit to having NAS with ECC memory and ZFS filesystem when I work on systems with neither?

Recently I've read some alarming stats on corruption rates in systems with non-ECC RAM and typical filesystems. From what I can Google, having a system with ECC RAM running ZFS is probably the best ...
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Why am I seeing Zero errors in non-ECC RAM? [closed]

According to sources, memory errors are a very probable event: Some say the probability of a DRAM error is 95% in just 3 days of operation of a computer with just 4 GB of RAM, others say 32% of ...
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Is ECC mandatory in SSD technology?

While shopping for an SSD I have noticed that some manufacturers promote their "Pro" models as the ones sporting ECC data protection. Those manufacturers do not mention ECC in their budget models ...
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Can I use Unbuffered ECC memory with a non-ECC CPU?

I recently purchased the Supermicro X9SCL-F with a Core i5-3350P. I realize that the 3350P does not support ECC, and the motherboard requires unbuffered ECC memory. I do not need ECC. Will unbuffered ...
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2k views

ECC on harddisks

I have completely re-written my post here as I noticed I was a bit unclear before. In an older post the user sawdust explained very well that there is an SRAM buffer on the HDD controller which uses ...
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ECC memory on 2nd Gen Intel i3

I'm in the process of collecting components for a NAS build. I've gone with an UNAS NSC-800 case and an Intel Server Board 1200KPR. I have an i3-2130 thats lying around that Id love to use instead of ...