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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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ECC RAM prevents POST

I have an Asus M4A79XTD EVO. The manual says it supports 4x4GB unbuffered ECC. However, it won't POST (not even a beep) with any of the 4 sticks I've tried (works fine with non-ECC). The RAM I'm ...
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ECC RDIMM memory in MSI X99A Raider

A hardware noob here. I have a MSI X99A Raider motherboard which specification says the following: Support eight DDR4 DIMMs 2133/2200(OC)/2400(OC)/2600(OC)/2666(OC)/2750(OC)/3000(OC)/3110(OC)/3333(OC)...
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What is on-die ECC?

According to Crucial, Designed with on-die ECC (ODECC)8 at the component level for long-term stability, Crucial DDR5 is engineered to maintain the same reliability as the previous generation, even ...
Evan Carroll's user avatar
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What does "Supports ECC UDIMM memory (non-ECC mode)" mean?

According to MSI, the motherboard I'm looking at Supports ECC UDIMM memory (non-ECC mode) What does this mean even?
Evan Carroll's user avatar
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How to tell if a laptop is utilizing LPDDR5 Link-ECC functionality?

JEDEC introduces two kinds of ECC to LPDDR5, that's inline ECC and link ECC. [1] However, link ECC, which is used to protect data through transmitting, is optional.[2]. My question is, how could we ...
march_happy's user avatar
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Do I need match pairs for ECC DDR4 RAM in workstation / server?

I'm looking to upgrade the ECC DDR4 RAM in my workstation. It is a Dell Precision 3650 Tower with a Xeon W1350. It can take up to 4x32GB 2933Hz ECC or 2X32 3200Hz ECC. I'm having trouble finding a ...
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ECC ram for long term storage, is it relevant?

I've been a musician composer for over 15 years, and I have to manage a growing body of works, in .wav format, and I would like to be able to find the best way to archive them while still being able ...
gtmanure's user avatar
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Proxmox Linux DDR3 ECC RAM not being used, but seen by the system and BIOS

I have a problem with my dell precision T7500 workstation/server. Bought 5 sticks of 16GB DDR3 ECC memory in hope to upgrade total capacity of memory available in my system. No errors, bios sees it, ...
Kujonello's user avatar
2 votes
0 answers
150 views

Does "transparently" error correcting RAM exist, requiring no host support? [closed]

As currently standardized, both the motherboard and CPU must support ECC RAM, and annoyingly, Intel (and to a lesser extent AMD) use ECC support to segment the market. But obviously you could make RAM ...
NotSoSuperUser's user avatar
1 vote
1 answer
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Is server RAM any different than consumer RAM with consumer chipsets supporting DIMM & ECC? [duplicate]

After looking at Micron Server DRAM and seeing how massively expensive it is, I went to look for the differences. This 11 year old post states that there are differences in reliability, ECC support, ...
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ECC RAM Data Width showing 72

I have installed ECC RAM and I would like to know why Data Width is showing 72 instead of 64? I have googled but can't find any related answer at all. Thank you in advance. Microsoft Windows [Version ...
Alvin Lim's user avatar
2 votes
1 answer
488 views

Why is there no “Toggle the encrypt capability” when generating master key using ECC vs RSA?

Evaluating switching from RSA to ECC when provisioning YubiKeys. Noticed that when I run gpg --expert --full-generate-key and select “ECC (set your own capabilities)”, the “Toggle the encrypt ...
sunknudsen's user avatar
65 votes
6 answers
14k views

What happened to ECC RAM?

A decade or two ago I could buy ECC (Error Correction Code) RAM for PCs I assembled. ECC RAM provided SEC-DED, I guess from bit flips caused by ionizing radiation (I don't know what else could cause ...
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Will i3 9100F support my ECC unbuffered RAM?

I read from the intel website that i3 9100f supports ECC ram, and when I am buying the ECC RAM, the guy said that the i3 9100F won't run with unbuffered RAM. Can anyone confirm this? My motherboard is ...
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Changing the RAM of lenovo workstaion from 8GB stick to 32GB [duplicate]

I have Lenevo P700 It supports this memory . This is ram which is currently inside https://postimg.cc/Ny2WQR8w THis is what i find from google it supports 32GB https://www.compuram.biz/memory/lenovo/...
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How to start memory scrubbing manually

ECC memory scrubbing is usually a passive process that happens in the background. But I was wondering if I can start it by hand and monitor its progress and maybe test specific address ranges? Regards
Oliver R.'s user avatar
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1 answer
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Does DDR4 RAM with ECC give a significant advantage over regular DDR4 RAM with its CRC?

Standard DIMMs before DDR4 had no error checking and the common practice for HA servers or workstations with increased RAM was the use of DIMMs with ECC. The DDR4 standard introduced CRC checking for ...
lmoly's user avatar
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What exactly is the difference between “Max“ and “Super“ setting in ECC BIOS setting of Asus M5A78L-M/USB3 motherboard?

The manual says only: ECC Configuration ECC Mode [Disabled] Enables or disables the DRAM ECC that allows the hardware to report and correct memory errors automatically. Configuration options: [...
zuza's user avatar
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Does HDD firmware write back corrected sector when reading bad but correctable sector?

I understand what is error correction and how it works, what I want to know is that when the firmware of the drive is reading data and chances upon a damaged sector that contains enough information to ...
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6 answers
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Why there is no ECC RAM type device invented to bypass bad sectors in HDD?

ECC RAM for reducing corruption errors on servers. Why there is no ECC RAM type device invented to bypass bad sectors in HDD?
Tom Cobalt's user avatar
3 votes
1 answer
3k views

Does Windows Server 2019 require ECC memory?

I am planning to upgrade a system running Windows Server to Windows Server 2019. The CPU (Intel i7-950), motherboard, and RAM do not support ECC. This is a physical deployment, not a virtual ...
kgcode's user avatar
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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: ...
Murali's user avatar
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2 answers
1k views

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" "ssd"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 ...
yes's user avatar
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1 answer
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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 "...
Wizzard's user avatar
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3 answers
4k views

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 ...
Wyzard's user avatar
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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 -...
adiggo's user avatar
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15 votes
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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 ...
clickbait's user avatar
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1 answer
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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 ...
Tyler's user avatar
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1 answer
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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 ...
Mrwut's user avatar
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1 answer
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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 ...
HappyBambi's user avatar
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438 views

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 ...
user's user avatar
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2 votes
2 answers
6k 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 ...
babybabi's user avatar
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518 views

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 ...
dman's user avatar
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1 vote
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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 ...
Stilez's user avatar
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2 votes
0 answers
340 views

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 ...
Stilez's user avatar
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2 votes
1 answer
1k 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 ...
E.A's user avatar
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1 vote
1 answer
2k 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 ...
ted's user avatar
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4 votes
1 answer
31k 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. ...
davidgo's user avatar
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19 votes
1 answer
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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 ...
Nicolas Manzini's user avatar
2 votes
1 answer
7k 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 ...
doc's user avatar
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17 votes
5 answers
28k views

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 ...
Ehryk's user avatar
  • 300
1 vote
1 answer
11k views

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 ...
J.E.Y's user avatar
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1 vote
1 answer
1k 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 ...
noone's user avatar
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2 votes
0 answers
1k views

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 ...
ben's user avatar
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3 votes
2 answers
6k views

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+...
inf3rno's user avatar
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0 votes
1 answer
321 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. ...
SPRBRN's user avatar
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-2 votes
1 answer
460 views

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? ...
user407381's user avatar
-1 votes
1 answer
187 views

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
noscrodamus's user avatar
0 votes
1 answer
266 views

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 ...
Kemal's user avatar
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