ram

Random-access memory (RAM ) is a form of computer data storage that stores data and machine code currently being used. A random-access memory device allows data items to be read or written in almost the same amount of time irrespective of the physical location of data inside the memory. In contrast, with other direct-access data storage media such as hard disks, CD-RWs, DVD-RWs and the older magnetic tapes and drum memory, the time required to read and write data items varies significantly depending on their physical locations on the recording medium, due to mechanical limitations such as media rotation speeds and arm movement.
RAM contains multiplexing and demultiplexing circuitry, to connect the data lines to the addressed storage for reading or writing the entry. Usually more than one bit of storage is accessed by the same address, and RAM devices often have multiple data lines and are said to be "8-bit" or "16-bit", etc. devices.
In today's technology, random-access memory takes the form of integrated circuits. RAM is normally associated with volatile types of memory (such as DRAM modules), where stored information is lost if power is removed, although non-volatile RAM has also been developed. Other types of non-volatile memories exist that allow random access for read operations, but either do not allow write operations or have other kinds of limitations on them. These include most types of ROM and a type of flash memory called NOR-Flash.
Integrated-circuit RAM chips came into the market in the early 1970s, with the first commercially available DRAM chip, the Intel 1103, introduced in October 1970.

View More On Wikipedia.org
  1. L

    Help ! DS920+ RAM UPGRADE NOT WORKING

    I added Crucial CT16G4SFD266 into ds920+ and it cannot boot up, just blinking blue light. Can anyone give me some advice or solution?
  2. A

    RAM use and SSD cache - a Hindrance or boost for a home user?

    So I have a leftover NVMe M.2 drive sitting in a drawer because I replaced a 512 Western digital in my laptop with a Samsung 970 EVO plus 1TB. In other words...its "free" and currently useless. I am waiting for a 920+ to be delivered, with my use case Synology Photos, Family Files storage...
  3. marco

    RAM upgrade

    Hello! I have 4GB RAM on a DS1819+, and the usage is always around 40%. The NAS is mainly used for streaming, but without real time transcoding. Since I don't see the NAS using more RAM than 40%, I'm correct that increasing the RAM will not do any difference? I think that more RAM are mainly...
  4. D

    RAM upgrade for DS1621+

    Hi, guys and gals! I want to bring a small contribution to this forum, for all of you looking to ugrade that paltry 4Gb of RAM. It's already almost a year I've been using this without any error, the NAS sees it as original. Got it from amazon Germany, PHS-memory 16GB RAM Memory for Synology...
  5. Jan Janowski

    Ram for 720+

    I did not expect this; Thanks for your email and interest in Crucial products. We are sorry to inform you that we crucial currently do not have a compatible RAM upgrade for your system Synology DS720+ NAS DISKSTATION. However our parent company Micron does manufacture them.
  6. EAZ1964

    The merger of ram, ssd and flash is within a few years reach? Ultraram

    Will the next step after optane, mean a full integration of ram, ssd and flash, making hardware even simpler and storage cheaper? Developments from the UK university of Lancaster: https://www.tomshardware.com/news/ultraram-implemented-in-silicon-for-first-time...
  7. Robbie

    Synology RAM Vendor Lock DS1621+, DS1821+, RS1221+ and RS1221RP with AMD CPUs

    Timetec DDR4-2666 16GB Replacement for Synology D4ECSO-2666-16G DDR4 ECC Unbuffered SODIMM 2666MHz CL19 Dual Rank I tested the Timetec ECC RAM that claims to defeat the Synology RAM Vendor Lock in the same manner as the Arch branded memory listed elsewhere. This RAM is available in the US but...
  8. ric0ric

    Cache or RAM first?

    I am awaiting the arrival of a 1621+ and would value advice on which upgrades would be most useful; 2x cache or extra RAM. I have a UPS. The NAS is going to be almost entirely used by just myself. Apart from storage and viewing of media (videos and images files) I shall be using it with...
  9. Sly870

    DS920+ RAM upgrade

    Good morning all :) Looking to upgrade the RAM on my new 920+. I see Synology has a 4GB stick for £80ish (OUCH!) and the Crucial is about £18. Is there an issue going with Crucial? Really finding it hard to justify that extra cost for a sticker? Looking for advice for those who have upgraded...
  10. R

    Installed RAM memory test confusion

    Hi there, I just installed 4GB ram into my DS218+ and I can see my total RAM has now gone up from 2GB to 6GB. I wanted to carry out a memory test as advised to do after installing new RAM. I followed the instructions here: Tutorial - Performing the Synology Memory Test and Extracting the...
  11. F

    3rd party RAM - RS18017XS+

    G'day, Searched for D4RD-2666-32G and RS18017xs+ and got no hits, so first post! I'm trying to upgrade the stock 16GB RAM on my RS18017XS+ as I need to add another couple of VMs. It's a lovely bit of kit but I'm running at 86% RAM capacity and another 2GB RAM allocated to a VM will break it...
  12. WST16

    DS220+ upgrade to 18GB.

    After my initial upgrade to 6GB with a 4GB Crucial memory that lasted for more than 7 months with no problems, I've gone mad and upgraded the 220+ to 18GB 😁 It's been about a week now and no problems so far. I've never received any warnings even during the first boot after installation, it was...
  13. J

    RAM upgrade seen but not used? DS218+

    Hi everyone! I upgraded my DS218+ with an 8GB Crucial stick (after having checked compatibility on NAScompares at the time). DSM correctly sees the 10 GB, but after using 2GB (big task) does not use the other 8GB free physical memory (still displays them as free) and instead starts swapping to...
  14. I

    1621+ Performance increase from RAM?

    So I’m expecting my new 1621+ in a couple days and I blew my budget in the NAS and the drives… I can’t really afford a RAM upgrade and plan to get more next month (I’m addition to NVME drives for cache). My question is, I have 8TB from my old synology to transfer to this one and I’m dreading how...
  15. A

    Synology RAM upgrade. Useful or not?

    Hi everyone :) I am currently using a Synology DS1819+ as a file server and to host a wiki (~20 users). The device comes equipped with 4GB of DDR4 and so far RAM usage has remained below 20% (usually around 15%). I guess this means that 1GB of RAM would be enough for what my DS does, right? I...
  16. DeadVoivod

    NAS change

    Hello, At the moment I'm using a DS2413+ with 12x4TB disks running in RAID6, and I have 4GB of RAM installed, maximum for the 2413+. Lately I found that operations on the NAS take very long, I'm doing a lot of archiving (rar, zip, 7z...) with loads of files, and I thought it might be due to...
  17. N

    DS1821+ max RAM

    Synology indicates that the maximum RAM support for the DS1821+ is 32Gb. Various sites indicates that the AMP processor supports 32Gb max, such as for example: AMD Ryzen Embedded V1500B - YE1500C4T4MFB But there are plenty of sites and people having installed 64Gb (2x32Gb) with success: the DSM...
  18. L

    Ram upgrade for DS1621XS+ anyone have 64gb? (what ram)

    Does anyone currently have 64gb ram in their DS1621xs+? If so, what ram did you use? Thanks in advance.
  19. Robbie

    Info RS1221+ ECC RAM Upgrade

    I wasn't really planning on this upgrade but stumbled on a new 'Synology' branded ECC SODIMM for regular DDR4 money. I need more RAM than this but for now it does, at least, double my RAM and brings me into dual-channel mode. My search for a bigger and better memory configuration that escapes...
  20. NAS Newbie

    Another RAM upgrade post - my RS1219+ is getting low

    So my RS1219+ came with 2GB ram, and I am always using over 50% of it and quite often maxing it out. Looking at other ram posts, Crucial was a commonly recommended company, but according to their website they apparently don't have anything that is compatible with the RS1219+? Memory RAM & SSD...
Top