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

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Low Memory Performance

I am currently benchmarking some of my code to see where the bottleneck is. My memory is DDR3 1066MHz DualChannel Mode This should result in 17GB/s peak memory performance. With my code I am ...
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77 views

Is it possible to install 8GB sticks in a P7P55D Deluxe motherboard?

I've bought a stick of 8GB of RAM and I'm trying to install it on my P7P55D Deluxe, but until now, I've got no success. The manual of the board shows some models of compatible RAM sticks and most of ...
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56 views

Asus motherboard / FreeBSD memory issue

We have a FreeNAS server, Asus P7P55D-E LX motherboard, 6GB of RAM. We want to upgrade it to 16GB. We installed 2 x 8GB RAM from Amazon: Crucial Ballistix Sport 16GB Kit (8GBx2) DDR3 1600 MT/s ...
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63 views

Is this ram compatible with my motherboard?

Corsair Vengeance Pro DDR3 2400MHz 16GB 2x8GB CL11 XMP 1,65V ASUS Sabertooth Z77 socket ATX,Z77, DDR3 I am currently using: Corsair Vengeance DDR3 1600MHz 8GB CL8 Kit w/2x 4GB XMS3 ...
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46 views

Choosing between RAM frequency and timings [duplicate]

I have 2 sets of SAMSUNG 2GB DDR3 RAM 1: 2 x 2GB 2Rx8 PC3-8500S-07-10-F2 2: 2 x 2GB 2Rx8 PC3-10600S-09-10-F2 There 2 main differences: (8500S vs 10600S) and (07 vs 09) Which set is better to ...
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70 views

RAM Part Numbers - Meaning?

I hope this is the appropriate stackexchange to post this question. EDIT: I'm attempting to replace faulty ram and am trying to understand the meanings of the label to make correct decision. I have ...
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37 views

why is my sort slower with more ram?

System specs below. I recently purchased 2X4 RAM: Corsair XMS3 8 GB (2 x 4GB) 1333 MHz PC3-10666 240-Pin DDR3 Memory Kit CMX8GX3M2A1333C9 I already had 2X2 in there for a total of 12GB: Corsair ...
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43 views

More than 3.4 GB in windows 7? [duplicate]

I have windows 7 in 32 bit mode and apparently it doesn't know how to use more than 3.4 GB of RAM, but I have 8. I read about the PAE thing, and it is enabled on my system but it still limited to 3.4 ...
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21 views

Xen E820 memory map for domU kernels

How does xen handle E820 memory map for domU kernels? In my specific problem I am trying to map Non-Volatile RAM to domU kernels. The dom0 memory map returns the following relevant parts. ...
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35 views

Virtual Machines: What components should I upgrade to improve running virtual machines?

at work I need to have one or sometimes two instances of a vmware virtual Windows 7 machine running on my real Windows 7 machine. The computer I'm using is Dell Precision 490 from 2009 I believe, ...
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67 views

How do I know my video card is good enough for running bluestacks

I run bluestacks and I keep seeing initializing. Some says that bluestacks require high end video card. My video card is: NVIDIA GeForce 210 according to belarc advisor. Should I buy better video ...
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Computer crashes twice/thrice before booting into windows [closed]

I need help. i built a PC, and it behaves very strangely. When i press the power button, the lights come on, fan maxes out, HDD spins, bios shows up etc and then it immediately crashes (powers down) ...
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20 views

Rail's FileStore with Linux Disk Caching or RAMdisk?

I have a Ruby on Rails application that stores it's catched files on the filesystem (Rails file-system cache). I was thinking about changing to memcached Store, but a short test shows it isn't a big ...
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328 views

Increase maximum locked memory for unprivileged user

I am trying to configure Ardour3 for Ubuntu Trusty 64. I get the following error: I have tried: root ulimit editing limits.conf This is my /etc/security/limits.conf: # ...
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3answers
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Mix RAM with different clock rates

I have two PC3200U modules and two PC2700 DDR modules. My mainboard supports both types and has 4 slots which are each color coded. So if I put each pair in the slots of the same color I'm good right? ...
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3answers
59 views

What is the swap file for?

I don't get it why is that the more RAM memory you have, the larger the swap file is. Shouldn't it be the other way around? I was under the impression that HDD space is used when there isn't enough ...
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Analyzing the actions of a running program

Do you know a Windows software (or several) that can analyze what a running program is doing ? For example, detecting if the program is connecting to the Internet (and to what), of sending data via ...
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4answers
47 views

Adding more ram to computer, what kind can I buy

So I've been looking to add more ram to my PC (I have 2 empty slots), and I just want to make sure I don't buy something I can't use, but at the same time want to get a good deal if possible. I read ...
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1answer
15 views

Memory for ASUS 1005 HAB

What is maximum memory I can put in an ASUS 1005 HAB laptop? It presently has 1 GB, can I go to 2 GB and what is the memory specification to order? I want to upgrade to System 7.
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28 views

Excel consuming absurd amount of memmory

I have a excel file consuming a huge amount of memmory, something ~500mb. The file contains only one sheet, no images or scripts and its size is only 719kb. I have checked all suggested solutions ...
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33 views

less maximum buffer size?

I was messing around with my system and found a novel way to use up memory, but it seems that the less command only holds a limited amount of data before stopping/killing the command. To test, run ...
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63 views

137 MB hardware reserved memory 64-bit OS with external graphics card

First of all, I have 64-bit OS, so it's not the 32-bit limitation of 3.5 GB. I have 2x2GB RAM sticks, when I was using the iGPU, I was assigning (128MB + 2MB GTT) for it but the hardware reserved ...
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55 views

Physical memory used space by process in taskmagare

I sum the value of used space memory by each process (all of them) that is showing in TaskManager and I understand that the sum of them is not really 68% of my memory card that is shown in the below! ...
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3answers
88 views

Operation System Clone from a Motherboard to Another [closed]

Lately we had an idea with my Family of building a Super Computer from Scratch. So while we were planning on building our setup, one idea came to my head that it seems possible but i want also your ...
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2answers
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Is this ram compatible with my desktop? [closed]

I want to buy this: http://www.newegg.com/Product/Product.aspx?Item=N82E16820148540&cm_re=ram--20-148-540--Product But I don't know if it's compatible with my Dell XPS 8500 which is a desktop. ...
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84 views

How to identify hardware performance bottleneck in laptop? [on hold]

Is there any tool that helps to determine the weakest link of my current laptop hardware specification? Any online guide to help me choose nice balanced configuration for the new laptop? I need to ...
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45 views

Will the SuperMicro X7DCA-L take Fully Buffered memory?

I have a lot of Fully Buffered DDR2 memory http://www.hynix.com/datasheet/spd/HYMP351F72AMP4N3_SPD.pdf My question is, would it work on SuperMicro X7DCA-L motherboard or do I have to purchase ...
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1answer
68 views

What's the difference between dd's command options bs=1024 count=1 and bs=1 count=1024

Consider the following two commands both creating a dumb 1KB file dd if=/dev/urandom of=test.file bs=1024 count=1 dd if=/dev/urandom of=test.file bs=1 count=1024 The first command uses a block ...
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1answer
42 views

“Not responding” error while CPU and Memory are free

Sometimes, while CPU and Physical memory are free, some program's status change to Not responding! Why?! For example as you see below, 80% of CPU and 25% of RAM are free! but VMware went to Not ...
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68 views

GIMP slows down my Ubuntu 14.04 over time

I have some problems with my GIMP recently. When I start GIMP it runs perfectly fine, but over time, say about 15 minutes, it's starting to slow down my Ubuntu (14.04). After checking my system ...
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65 views

Virtualbox Memory Overcommit

I need to run a VM appliance that wants access to more RAM than available on the physical host (16GB needed). I understand there are performance penalties, but I plan to run this VM as a background ...
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Linux OOM killer does not release memory immediately

We have a Ubuntu 12.04 VM on ESXi 5.1 with 4 GBs of RAM and the swap is turned off. One of our Java processes eats a lot of RAM and naturally OOM killer kills it but although the Java process is ...
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Where Is My Memory Wasted?

I have 8 GB Random Access Memory. And have no idea where the major (6 GB) part of it is disappeared (or usually disappears). Total sum of all the MBs listed in the Task Manager (I know not all of the ...
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54 views

Can RAM with significantly lowered temperature still be accessed normally?

If I significantly lower the temperature of RAM using those dust cleaners (I'm following the method outlined in this paper: ...
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1answer
122 views

Asus P7P55D-E LX motherboard — over 16GB RAM?

We have a FreeNAS server with a P7P55D-E LX motherboard. We've added a lot more disk space since building, and need to upgrade the RAM. Specs say 16GB is the max ... (4x4GB) ... but is this true ...
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2answers
66 views

What happens to the rest of my RAM if I limit Windows to a lowered amount?

I've been experiencing a little bit of system instability, so right now I'm going about limiting my CPU and RAM usage within Windows to see if I can pinpoint anything. I've found how to limit CPU ...
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1answer
74 views

A very clever virus?

This happened after I'd deleted all my system restore points to save disk space on my 60GB SSD, and run a MBAM scan the day before. Yesterday I downloaded a video file that would not play, though it ...
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101 views

Creating a RAM disk out of an existing folder on a hard drive

I know there's a lot of software that will allow you to create a RAM disk, but I have a specific situation. I'd like to put my installation of League of Legends onto a RAM disk. The issue is that ...
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How is the burned BIOS/firmware code executed from the CPU? [closed]

Let's use simple Intel and "generic PC" memory-mapping/engineered boards to get the gist of this. BIOS/firmware is hardwired to a certain address; an address from which is immediately ...
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99 views

Is RAM completely cleared when you turn off computer after pulling power? [duplicate]

Would there by some way to pull the power instead of conventional shut down, and recover the contents of ram without loading the operating system upon the next start-up? I'm trying to recover files ...
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1answer
35 views

Using a new memory ram and almost a broken memory ram together

I just bought a new memory ram(TwinMOS,2GB,DDR3,1333 MHz),I tested it using memtest and it passed the test without any error but I have another memory ram (GEIL, 2GB,DDR3, 1333MHz) which I used it ...
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71 views

Process tree CPU history usage, process tree memory usage (aggregated) on Windows 8.1

This question is general for Windows OS, but I would like to see a software for Windows 8.1, since this is what I use. I'm looking for software, that will take a process tree (e.g. Chrome.exe ...
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1answer
38 views

Picking the right ram [duplicate]

I informed myself of picking the right ram, but there are still questions. I am currently running a AMD Phenom II x4 965 (Black Edition) on an ASUS M4A87TD EVO. I'm planning to switch my core as soon ...
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Is creating page files on separate HDDs a good thing or unnecessary with lots of RAM on Win7x64?

I have set the page file to custom using the recommended mbs and noticed on my two other hdds that they were blank and was wondering if it would be necessary to set up page files on those hdds. I have ...
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2answers
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Computer doesn't start after installing new Corsair DDR2 RAM

I have a new memory stick (CORSAIR 2 GB of RAM) and I have an older set of 2 sticks of RAM that are 512MB and 256 MB. (I bought it 1GB actually but the Computer tells that it has 256MB of RAM only). ...
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250 views

Adobe photoshop “not enough ram” message opening a 60 MB TIFF file

I am working with Windows 7 x64 on a full HD monitor, Intel i5-2500K and 8 GB RAM, currently available 5,5GB. I tried to extend photoshop's memory usage and scratch disk settings as following: But ...
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My RAMs shrunk with no apparent damage. 8gb to 4gb on both rams.

My computer recently started rebooting randomly, or whenever there's a bit of shock on the table. I thought probably one of the slots are loose. And I found on my OS that my 8 x 2 = 16GB RAM was ...
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49 views

ASUS 797-AR BSOD when two DIMM channels are in use

I've run into a very strange issue. Built a new machine this past weekend and everything was running smoothly for about four days. Then I had a stick of RAM die. Exchanged them for a new pair and now ...
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even if we have enough RAM space, why OS will use SWAP memory? [duplicate]

from the above pic, you can see we have 3191 RAM free, but at the same swap is also using about 661 bytes. why it is occurring ? can any give a glance regarding this. Thanks
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RAM buffer access makes beep/screech

When I execute dd if=/dev/zero of=/dev/null bs=1G count=1, I hear a curious, very soft- screeching sound (think HD spinup but shorter, softer, and higher pitched) from where I know my RAM is located ...