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Questions tagged [ecc]

Error Correcting Code (ECC memory) is used in most computers where data corruption cannot be tolerated under any circumstances.

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20 views

How to validation ECC DDR memory controller periodic control scrub?

Using ARM not x86, how do I validated DDR periodic patrol scrubs? The controller is enabled per the hardware spec, nothing in the hardware spec on how to validate periodic patrol scrub for the ...
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1answer
127 views

Does fully buffered memory have a different notch position?

I'm working on a server and ordered replacement ECC memory and found that the fully buffered DDR2 to have the notch in a different positions. I wasn't aware what buffered vs unbuffered memory has a ...
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1answer
49 views

Sync ECC archive with non-ECC backup/archive server

For archiving and backup, I created the following strategy: Server 1 (Local Network in Office) running 24/7, Linux Ubuntu NAS on DIY Odroid XU4 with Cloudshell 2 and Raid-1 (2x 8TB) this is my ...
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1answer
620 views

Non-ECC RAM for virtualization?

I'm on a quest of building a virtualization server. However, I was asking myself a question: should I stick with non-ECC RAM for this server or not? This because I found a Xeon CPU that falls in the ...
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2answers
483 views

Does ECC RAM help in a home-use NAS? [closed]

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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3answers
668 views

What to do in response to repeat DRAM ECC error notifications for the same memory location?

I woke up this morning to what's a first for me; one of my systems had logged DRAM ECC error notifications. Three of them, in fact, for as far as I can tell the exact same memory location (obviously, ...
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0answers
129 views

i7 edac: ecc error - which module?

I'm running a Xeon X3450 on a Supermicro X8SIE-F mainboard. Currently there are 4 reg. ECC DIMMs installed (each 4GB in size; installed as DIMM A-Channel1, DIMM A-Channel2, DIMM B-Channel1, DIMM B-...
2
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1answer
2k views

Do Kaby Lake Pentiums support ECC?

Looking at setting up a SOHO server with a C236 Chipset and ECC RAM and wondering about the CPU to use. Skylake Pentiums (e.g., the G4400) support ECC, but prior to Kaby Lake's release, news outlets ...
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1answer
187 views

Where to find report about ECC DDR single bit failure rates on Windows?

We have a windows server 2012 with ECC DDR3 installed. Recently the Dell admin software that came with it started reporting single-bit correction warnings on one of the modules: My question is, is ...
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0answers
756 views

R610 Mixed Memory configuration

The configuration for this question is as follows: We have two dell R10 servers. Each R610 is has 2 X E5504 cpus, (The E5504 is 4 core X 2.0 GHz). I ordered 12 sticks of 8GB ECC DDR3 ram (Hynix ...
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4answers
11k views

How to check if RAM is running in ECC mode?

I updated this post since I replaced the processor, but the core of my question (and unfortunately the results as well) are the same. I built my first FreeNAS box and wanted to use ECC RAM since I ...
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2answers
2k views

Can I mix ECC RDIMMs with different rank?

I have an Intel S5520SC motherboard with two Intel Xeon E5620 CPUs installed. It currently has six KVR13R9D4/8I DIMMS - I want to add another six DIMMs (48GB of RAM) to upgrade this workstation to ...
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1answer
1k views

Fujitsu server memory modules - registered ECC, but still won't POST

I have a Fujitsu TX150 S7, for which I want to upgrade the memory. I thought that would be simple enough, but apparently that is not so. The manual for that server states the following: Memory slots:...
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0answers
94 views

Does Rabbitmq support Elliptic Curve Encryption?

I am using rabbitmq for chat. I have already installed the ssl on machine, which work fine for Android platform, but iOS broker not able to establish connection with machine and always show SSL ...
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2answers
663 views

dmidecode weird total/data width

I am getting strange outputs from my workstation, which has ECC RAM. Supposedly, from what I read, the data width should be at 64 bits and the total width at 72. But... data width shows as 64 and ...
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1answer
114 views

Using DDR4 SDRAM in a Supermicro X10SRL-F Mobo that wants DDR4 ECC SDRAM?

Hey so I got my hands on a Supermicro X10SRL-F motherboard, and bought myself a Xeon off ebay, but I neglected to get any ram, (money reasons). I figured however, that I might be able to pick ...
7
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2answers
2k views

What does ECC RAM failure look like

For Non-ECC memory I have a decent idea of what a failure looks like; certain random things start going wrong (e.g. PNG checksums fail validation once and then not the next time), that sort of thing. ...
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1answer
819 views

How to force ECC error [closed]

I'm looking for a way to force an ECC error in a DRAM DIMM to test some code associated with recovering from these errors. I believe Intel makes a test jig for several thousand dollars, but I'm ...
1
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4answers
784 views

Advice on DL380 G5 RAM, and why the DIMMS I have aren't supported

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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4answers
455 views

Is it safe to use not ECC RAM for cold backup server?

I need home computer for simple backup task (just cronjob on Linux, it will run once per day): Download file from my production server (in datacenter, it's good server with Xeons & ECC RAM etc.) ...
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1answer
131 views

Mid Range Server Motherboard Recommendation (linux) [closed]

I am looking for a mid price range motherboard for a Linux Server. It should have support for ECC memory. On all other aspects I am pretty open minded! Any suggestions or recommendations?
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3answers
11k views

ECC memory errors causing random server reboots

I'm running ubuntu server 14.04 on Supermicro X10SLM-F / Xeon E3-1271 v3 Memory: SuperTalent 32GB DDR3 1600 ECC About every 4 days, the logs on Ubuntu will show this: {1}[Hardware Error]: Hardware ...
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0answers
134 views

Are 2Rx4 DDR2 ECC memories compatible with Intel Xeon on socket LGA771?

For my Intel Xeon L5420 (LGA771) I bought 24GB of DDR2 ECC Reg, 2Rx8, knowing that 2Rx4 are specific to AMD chipsets or, at least, the non-ECC ones are. However, this slick seller instead sent me ...
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1answer
118 views

Skimp on CPU or skimp on RAM? [duplicate]

I'm upgrading to a dedicated server, and I've decided between two servers, but I don't know which to choose. The differences between the two configurations are: Server 1: Intel Xeon W3520(4 cores/ 8 ...
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3answers
1k views

See ECC correction count

I'm curious as to whether or not there's some performance counter that will log the number of ECC corrections required, that could perhaps be tracked as an early indicator of memory failure. I imagine ...
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2answers
1k views

What is the Rowhammer DRAM bug and how should I treat it?

DRAM chips are very tightly packed. Research has shown that neighboring bits can be flipped at random. What is the probability of the bug triggering at random in a server-grade DRAM chip with ECC (...
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1answer
2k views

Which browsers and OSes supports ECC based SSL certificates?

We are evaluating whether to buy a RSA based certificate or a ECC based certificate. RSA is older and is supported by all browsers. ECC is newer, they state it is faster due requiring smaller key ...
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1answer
732 views

Why is the use of ZFS without ECC RAM “not recommended”? [duplicate]

I've been reading up on FreeNAS and RAID Z, and one of the things people kept mentioning is that you shouldn't use ZFS (or more specifically, RAID Z) on a machine without ECC RAM. I'm wondering what ...
4
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2answers
1k views

Is an ECC ram enabled GPU necessary for a server, or will a normal gpu work fine in a server?

Is it a requirement for a server to use ECC ram on a GPU while the normal CPU ram is ECC? Im thinking that instead of using a Quadro k6000 or AMD Firepro, we could use a GTX 980 or AMD r9 290...if ...
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2answers
1k views

Alternative file system/volume manager for ZFS w/ non-ECC RAM?

It's not recommended to use ZFS for a computer without ECC RAM. So, what's a good alternative then? Or is the risk the same, so it doesn't matter what manager I use, it'll be the same problem if a bit ...
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3answers
18k views

How do I get notified of ECC errors in Linux?

How do I get notified, when a Linux machine equipped with ECC memory recognizes a memory failure? I'm interested in both correctable and uncorrectable errors. if a message is written to dmesg/the ...
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1answer
92 views

Is there such a thing as unbuffered registered DIMM memory?

I thought the two (registered and buffered, and the same for the negations) are synonymous. Are there any ECC unbuffered but registered modules out there?
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1answer
776 views

Uncorrectable ECC memory error [closed]

I was running simulations on a virtual machine of Ubuntu on Windows 7 OS and nothing was wrong. I decided to wipe Windows 7 off, and install Linux (Ubuntu 14.04). I started getting this error after ...
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1answer
445 views

Where are the ECC memory error counters stored?

Where are the ECC memory error counters stored: on the DIMM itself, the motherboard, or the host's disk? I'm using memtest86+, but it seems that it doesn't recognize ECC on my system, so if ...
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3answers
4k views

Evaluating uncorrectable ECC errors and fallback methods

I run a server which has just experienced an error I've not encountered before. It emitted a few beeps, rebooted, and got stuck at the startup screen (the part where the bios shows its logo and begins ...
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1answer
1k views

What happens to a random bit error in the cache on an Intel CPU?

I have a system with ECC RAM and a Xeon E3 CPU. My understanding is that ECC circuits on the RAM will detect corruption from random bit errors in the RAM chips. But what happens to random bit errors ...
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2answers
4k views

What RAM options do I need to know before buying Server RAM?

This is a proposed Canonical Question about Server Memory. I have to buy a Dell R420 server and there are various combinations (1600 and 1333 MHz RDIMMS and UDIMMS) and Performance Optimized vs. ...
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2answers
3k views

ECC CE (Correctable Error) occuring every 5 minutes exactly

On one of our computing nodes I am getting ECC CE (correctable errors). What is a little bit peculiar about is is that errors are not massive, just a single occurrence exactly every 5 minutes. ...
4
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2answers
14k views

What does “single-bit ECC errors were detected on the RAID controller” mean?

I have a Dell T7600 with a Perc H710P RAID controller and 4 attached 3TB drives. Over the past few months the RAID controller has been intermittently reporting errors on boot: "no boot device found", ...
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2answers
2k views

How I know if I have ECC RAM or not installed?

I have rent a server with: 8 GB DDR3-RAM ECC On startup the log files print something like this: EDAC amd64: This node reports that Memory ECC is currently disabled, set F3x44[22] (0000:00:18.3). ...
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2answers
3k views

HP Proliant DL320 G5 Memory Registered or Unregistered?

I have an old HP Proliant DL320 G5 with 2x 1GB of RAM. I would like to swap out the old ram and install 4x 2GB of RAM to bring it to the max capacity. The manual calls for PC2-5300 unbuffered modules. ...
5
votes
3answers
505 views

Is there any such error logged by CentOS somewhere that can conclusively reveal “it is now time to pay for ECC”

I have a 32GB non-ECC RAM dedicated server with CentOS. Once for day it randomly crashes without any error in /var/log/kern.log, /var/log/messages, mysql, apache. CPU/RAM/IO are not particularly ...
2
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1answer
936 views

FBDIMM Thermal/TDP Issue

I've got a 2U dual Xeon server with 8x 2GB DDR2 FBdim/ECC ram, on an intel s5000PSL board. It's stable, the ram memtests clean and both CPUs are running cool (35C). Half of the sticks run ~60-65C, ...
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1answer
160 views

Is ECC memory recommended for memcache? [duplicate]

I'm planning to buy new server for memcache/couchbase. Would you recommend using ECC memory for a memcache server, why/why not?
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3answers
8k views

Non-ECC memory with ZFS: a stupid idea?

I have a new server and am planning to upgrade the paltry 2 GB of memory to the maximum of 16 GB. (Theoretically 8 GB is the limit, but empirically 16 GB has been shown to work.) Some guides advise ...
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2answers
9k views

ECC errors in L3 cache - critical or not?

On a linux server (8x Quad-Core AMD 8378), I'm getting the following errors: [Hardware Error]: MC4_STATUS[-|CE|MiscV|-|AddrV|CECC]: 0x9c294c00001d018b [Hardware Error]: Northbridge Error (node 4): ...
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1answer
2k views

Turn ECC off in HP Proliant ML350 G4

I have got an HP Proliant ML350 generation 4. I want to upgrade the memory but I only have non-ECC memory. How can i disable ECC in the bios settings to let the non-ECC ram work?
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3answers
3k views

ECC vs Non-ECC memory

I am looking for memory for SUPERMICRO MBD-X8DAH+-F-O Dual LGA 1366 (http://www.supermicro.com/products/motherboard/qpi/5500/x8dah_-f.cfm). Basically, I am looking for the difference between ECC and ...
14
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1answer
34k views

Should I use bios “Advanced ECC” in Dell PowerEdge R710 Bios with ECC DIMMs?

I have a Dell PowerEdge R710 with dual Intel Xeon E5503 CPUs. It has 96GB(12x8GB) of ECC DIMMs. In its BIOS, memory is configured for "Advanced ECC". My question is if my DIMMs are already ECC, does ...
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3answers
22k views

What and how to check when determining if a memory stick will be compatible with a particular server?

We recently needed to add more RAM to our vCenter Server (Dell PowerEdge 860 server). We checked from the Kingston memory search what kind of memory the server accepted. Then we found a listing of 4x ...