RAM (random access memory), either RAM hardware or software and operating system use of RAM.

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Memory heirarchies and kernel boot options

I'm booting a Ubuntu 14.04.3 LTS server on a Core-i5 T5200U machine with kernel boot options agp=off ipv6.disable=1 intremap=no_x2apic_optout biosdevname=0 audit=0. When I inspect dmesg, I see the ...
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1answer
31 views

Does DDR RAM also have a minimum bandwidth?

Reading about DDR3 on Wikipedia I can see that it has a peak data transfer rate. However, I assume the peak rate to be a theoretical maximum. Can we also derive a minimum transfer rate for DDR3 RAM, ...
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100 views

RAM upgrade for ASUS Sabertooth X58 motherboard [duplicate]

I want to upgrade my home rig with more memory, but I don't know which RAM chips I should buy. I currently have 6GB, I need more to be able to run VMs. I am considering buying Kingston HyperX Red ...
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1answer
92 views

big and non-coherent non paged pool despite settings

Since I upped my memory on my computer, the non-paged pool became really big (went up from 96MB with 2GB ram to 715MB with 16GB). It is not understandable as the task manager reports less than 1MB ...
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36 views

What am I missing with these RAM chips?

I have 2 RAM chips - one that works, and I thought I understood what i'd need to match it, but the new one I've bought does not work -- what am I missing?? So I have a Acer Revo 3700 (currently seem ...
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18 views

What does atop 'cache' output really mean?

The atop man page says: An occupation percentage of 90% is considered 'critical'. Notice that this occupation percentage is the accumulated memory consumption of the kernel (including slab) ...
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1answer
241 views

Windows 7 PC stuck in boot loop after RAM upgrade

I just upgraded a Dell Optiplex 980 desktop PC (with a Core i5-650 CPU) from its previous 2x2GB (4GB total) of RAM to a new 4x4GB (16GB total). This is the maximum it should support, according to the ...
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2answers
105 views

Which RAM stick to pick? [closed]

Please don't confuse this question with a 2x2GB or 4GB. I have 2 RAM sticks that are shown side by side in the two photos. Both are from different manufacturers, but both have the same capacity ...
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34 views

Is it possible to run a 2GB RAM on Asrock G31M-VS?

I just want to know if I can stick another 2GB RAM on my Computer. System Hardware: Motherboard: ASRock G31M-VS (FSB1333 DDR2 800 Dual Channel). CPU: Pentium Dual-Core 2.5GHz. RAM: DDR2 800 Memory: ...
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23 views

Memory not being properly detected

I purchased a Crucial 4GBx2 kit and recently installed the two sticks. One stick was detected, while the other was not. I tried reseating and moving the stick, however, the stick was still not ...
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33 views

Don't understand these RAM specs

I was reading the RAM specifications for my motherboard, an Intel DH61CR, here: http://www.intel.com/content/www/us/en/support/boards-and-kits/desktop-boards/000006781.html I don't really understand ...
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47 views

How much ram does my pc has?

I want to turn this old pc into a home server. When I bought it (few USD) I was told it has 4 GB ram but I only see 3072MB The SPD says slot0 2048 and slot1 2048 but DIMM says 2048 and 1024. So ...
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68 views

PrimoCache - How to use my ram to cache “frequent read data” for ssd

How to use RAM to cache frequently read data for SSD (instead of using the SSD to cache like the HDD does)? Example : Everyday I turn on computer and open Firefox, bla bla. This is my "frequent ...
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86 views

In CMD.exe, “start sh.exe” creates a conhost process which takes 700 MB memory

Git bash (sh.exe) otherwise takes little memory, but when started with CMD's start sh.exe command, it creates a conhost.exe process that takes 3-700 MB memory. Interestingly start cmd /k sh.exe ...
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369 views

FAT32 vs. NTFS microSD card

UPDATE: OK, so in response to the suggestions below, I formatted to exFAT. Transferred a movie on to it. Put it in the tablet. Guess what? It won't read it. Says the card is blank and needs to be ...
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1answer
31 views

Trying to figure out if my processor supported RAM I just brought [duplicate]

I just brought G. Skill RipJaws and this is my first time buying RAM to update my computer. When it arrived today it said on the package it was compatible with Intel Core i7, Core i5, Core i3 and ...
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1answer
91 views

My RAM is defective, should I reinstall my OS?

My stick of RAM is defective, and has been behind numerous errors on my PC in the past few months since I built it. After I confirmed that the RAM was the culprit with MemTest86, I've purchased a new ...
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1answer
39 views

Running matlab on Windows through Mac

I need to do some work on matlab which must be through windows. Unfortunately I have a 2014 mid retina (8gb ram, core i5). Would one think I would be able to run it through parallel? I need to do some ...
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3k views

16 GB of my 32 GB of memory is unusable, marked as “hardware reserved” [duplicate]

So I've googled around and tried a lot of stuff to fix this and none of it has worked. Half my RAM is hardware reserved, and I do some image processing of large collections of images, so I need that ...
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67 views

Is there a way to Tweak Windows 10 memory management (compression store)?

Is there a way to Tweak Windows 10 memory management (compression store) ? if YES how can i do it (i am willing to try registry or .DLL hack) Details on how windows 10 memory management works
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74 views

How to load entire process memory from swap quickly (linux)?

I run a bunch of CPU-hungry processes in parallel, they normally use a few GB of memory each. From time to time they allocate large amount of memory too (say 150-250GB). Usually at most one of the ...
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1answer
2k views

What is 'System and compressed memory' and why is it using so much memory? [duplicate]

On Windows 10, There is a process System and compressed memory. What is it and why is it using so much memory?
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1answer
101 views

Windows 7 uses 800 MB RAM right after clean startup

I have Windows 7 installed on the computer with 2 GB RAM. Recently I've been running out of memory quite often while running all the same tasks; the windows would display warnings and so on. However ...
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2answers
231 views

Reducing Windows 10 x64 memory footprint – can I tune the system's automatic memory compression?

Having recently migrated to Windows 10 from a Windows 7 and Linux (Ubuntu/Kali/Redhat) along with extensive usage of virtual OS's Finding it difficult to reduce memory footprint of windows 10 OS on a ...
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47 views

Program crashing due to low RAM

Hi We have a machine that is controlled by a Windows 7 proffesional 32 bit machine. The machine is controlled by a software application that requires a machine with 4 GB ram. Sometimes the ...
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90 views

dm-cache doesn't seem to work - no performance difference

I'm creating dm-cache device using my script: http://pastebin.com/KTSzL6EA Effectively it's running those commands: dmsetup create suse-cache-metadata --table 0 15872 linear /dev/mapper/suse-cache 0 ...
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1answer
87 views

Using RAM stick with different voltage?

I would like to upgrade the RAM of my laptop. its a Toshiba Satellite L850 - 13D, Windows 10 , 64 bits, it has 2 slots for RAM, the one I have is 4gb, I don't know if I can add another one, but ...
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56 views

R memory leak issue loading large dataset

I all, I have an issue with memory usage in R. I do not really undertand how R manage the memory. As long as the datasets were small it was not a problem but with a 1 GB file loaded in the RAM a leak ...
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2answers
68 views

How to find max RAM speed supported

I'm intending to add some RAM into my current laptop. I have tried and read articles about RAM (memory and speed). I understand that laptop uses specific RAM (SODIMM). I'm trying to find out what is ...
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86 views

Windows 10 Memory

Every time I'm just using my laptop for a few hours, then all of the sudden my laptop is using 15,6 GB of my RAM. When looking into taskmanager, I can't find the memory back. Adding all of the memory ...
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26 views

New Ram works with Win7 32bit and gives BSOD with Win764bit during Splash Screen

I have a strange issue with my system. I have RV509-A0GIN laptop. Initialy it came with 2GB ram so i upgraded it by buying 4+4GB Rams. I tried to reinstall windows 7 32bit from USB but it start to ...
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58 views

How to share RAM memory with Graphic Memory

My specs :- 1) Dell inspiron 15 3542 2) Video/Graphic memory is not dedicated 3) 4 GB RAM 4) Windows 8 Pro. I want to share my RAM memory with video/graphic memory.. Mean, I want to use 3 GB of ...
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42 views

Dual Channel Mode(RAM)

My existing Build has 2 * 4GB RAM G.SKILL Ripjaws Series 8GB (2 x 4GB) Processor : i5-4690 Motherboard : ASRock H97M Pro4 Currently my memory run's in Dual Channel mode. Am planning to upgrade my ...
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58 views

Is the Windows paging file safe in the encrypted partition?

I came across this setting called ClearPageFileAtShutdown. The setting is described here and says: If you are truly worried about security, boot Windows off a fully-encrypted drive. Then you ...
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49 views

What is the difference between DDR3 and GDDR5? [duplicate]

As I said, Before I begin, this is not a duplicate of What is the different between DDR3 and GDDR3, so idk why it has been marked as a duplicate this is an entirely different question. What im talking ...
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1answer
34 views

Can we find the address in the RAM knowing the data that is stored?

Let's say we created an object with some programming language a = "This is my text and it is very precious" and then close the terminal. As I understand it, the memory space that contain the ...
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60 views

G-Skill F4-2133C15D-32GRS - Is it true DDR4?

I bought the following memory kit on newegg for my Dell Precision 5510 with Xeon. 1 x G.SKILL Ripjaws Series 32GB (2 x 16G) 260-Pin DDR4 SO-DIMM DDR4 2133 (PC4 17000) Laptop Memory Model ...
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15 views

Diagnosing Dead MoBo/Other PC Component

basically I have this HP G60-445DX Notebook that is showing some odd signs. These signs are atypical to what I've normally seen in fried mobos. In short, no graphics, no POST beeps, HDD light ...
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22 views

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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1answer
36 views

If my motherboard only supports minimum DDR3 1066MHz ram and I have 639.9 MHz ram, will it work?

I'm going to upgrade my PC to a newer MB, but not my RAM. One allows the following frequencies: DDR3 1066/1333/1600/1866*/2000*/2133*/2200*/2400*/2600*/2666*/2800*/3000*/3100*/3200*/3300*(*OC) MHz, ...
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48 views

PC Doesnt boot past the screen with the flikkering underscore

First of all, i've been searching to find possible solutions on the internet, i tried quite a bunch of them nothing really worked. So where did the problem start? A few days ago i found out my RAM ...
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2answers
51 views

Is data from a usb device stored in ram while getting same ( etc explorer listing items )?

Does it go first in ram then to software? Or does some programs like Windows explorer have "VIP" permission cause they are child of OS, for direct access? EDIT Does it possible to make kernel, to ...
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33 views

Curious about RAM upgrade on HP p6520y

I have an HP p6520y desktop I was putting new ram into. The specs for this board can be found here http://support.hp.com/us-en/document/c02179806. The board is an H-RS880-uATX (Aloe) with an AMD ...
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1answer
182 views

How much memory should svchost.exe(netsvcs) use normally? [duplicate]

I'm using windows 7 and when I look at the processes' memory usage I see that the process svchost.exe(netsvcs) is taking 1.2 GB of the physical memory. Is this normal? Note: when I start windows the ...
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64 views

Optiplex 380 - Memory module 1Rx16 not compatible with 1Rx8 type?

Tried to do memory upgrade a Dell Optiplex 380 which had a single 2 GB memory module (1Rx8 PC3-10600U-9-11-A1 from hynix). 1Rx8 should mean it's single rank with 8-bit wide data bus for each DRAM ...
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48 views

Which RAM slot is being used when I run a program in Windows?

Suppose that I have two ram slots and 1GB at each. I wonder what is the priority order for RAM slots in Windows. When I run a program, does Windows full a RAM slot and then use the second one or use ...
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72 views

How to delete insanely large folder in linux

we have a cache folder, that accidentally grow large enough that it break the server. We have 8 GB RAM on server, and when I run simple rm command to delete all files within it consume all of RAM and ...
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112 views

How to see real ram usage for each program in windows 7

when i press ctrl-alt-del and open Task manager I see that Memory is used at 80% (Performance tab), but if I add all the memory usage values for each program from the Processes tabs there's no way ...
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RAM backed File I/O

I have an HP laptop which parks its hard drive at the slightest bump, presumably detected by accelerometers. I'm glad it does this. I don't want horribly corrupted data. However, I have some pieces of ...
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85 views

Computer won't boot, UEFI beeps

It has been a couple days by now and I am still trying to find out what the problem of my PC is. I have made a short video of what is happening when I run my PC on and in this video you might notice I ...