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

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Windows XP + PAE + 6GB RAM: See more than 3.5GB?

Firstly let me say I've seen a number of similar questions on SuperUser, and I don't think this is a duplicate. (Most address 4GB RAM installed. I have 6GB) I have Windows XP 32-bit running on a ...
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6answers
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Windows XP seemingly out of resources but plenty of free RAM and swap available

This one has been bothering me for years and so far I couldn't find an adequate solution. The problem occurs on pretty much every XP install I've done. After opening a variety of programs or the ...
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2answers
337 views

Is it possible to retreive the content of a running bash script from ram

I have by accident overritten a very complex bash script, where I tried to implement scoping and threading in a tidy way now the same script is still running but the file is no more, question is: Is ...
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Is there a command to find out the available memory in Windows?

I am looking for a command that returns the available physical memory in Windows. I tried "systeminfo" but it takes too long and returns a lot of unnessesary information for me. If there is not any ...
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2answers
430 views

Why does my W7x64 laptop show 4091Mb of RAM instead of 4096Mb?

My laptop shows me only 4091 Mb of RAM instead of 4096Mb that it should. When I remove one piece of memory (it doesn not matter which one), it then shows 2046Mb. I do not remember when it started, ...
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Windows 7 (x64) memory usage climbs to 90%+ while system is idle?

I have windows 7 with 4GB of RAM. When the system starts from a fresh boot I start with about 33% usage. However, if I walk away with my PC idle for a few hours, or over night, my PC typically climbs ...
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What does the “Max Memory Size” on the new Intel Core i3 / i5 / i7 CPU's mean?

I just noticed in the specs of the new Intel Core i-series processors that there is a "Max Memory Size" that is usually pretty small -- anywhere from 8GB to 24GB. See here: ...
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How can I determine which RAM module is failing Memtest86?

One or many of the memory cards out of total 4GB (4x1GB) are failing. The following is memtest progress screenshot. It is always pointing to memory at 19xx MB and 50xx MB. Error bits are always ...
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RamMap “Empty standby list” drastically speeds up PC. Is there a better way to do this?

Many people are educated on how Windows Memory manager caching work by reading Microsoft white papers, etc. However, there are relatively few documents that describe real-world performance issues ...
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Why does RAM need to be installed in pairs?

Why does RAM need to be installed in pairs? What's the reason behind this?
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How can I monitor video memory usage?

How can I monitor video memory usage?
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Running Windows with defective RAM

Is it possible to run Windows (7, x64) with a defective RAM module? More precisely, is there some way to tell Windows not to allocate a known bad address or block of addresses? For Linux, there is ...
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Releasing swap space

At times the kernel seems to be intent on keeping e.g. firefox in swap, even though there is enough physical memory available and I'm using firefox: robert@rm:~> free -m total ...
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Why/how is svchost.exe using 6.5GB of memory?

What is going on here? I have almost nothing running. By almost nothing, I mean Firefox, and some background network applications that are entirely passive and would never use this much memory. ...
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10answers
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8GB RAM on XP Professional [duplicate]

I recently installed 8GB of RAM onto a quad core workstation (HP xw8600) running Windows XP Pro (32-bit). I added the /PAE switch in the boot.ini file, but the SysInfo is saying 3GB total memory ...
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2answers
417 views

On x86 architecture, why are there fewer bits for virtual address space than physical?

I was reading this article on 64 bit computing, and it mentions: For example, the AMD64 architecture as of 2011 allowed 52 bits for physical memory and 48 bits for virtual memory I would think ...
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How to get results from Memory Diagnostics Tool?

I ran the Memory Diagnostics Tool in Windows 7 64 bit. I have 16G RAM. It reported hardware problems. This is a new system with new memory. When the system rebooted I was expecting an icon in the task ...
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Why does the memory usage in “top” not add up?

I have noticed that sometimes when I run top, the memory usage of each process in the process table does not seem to add up to the total. For example, in the dump below, top says that I am using 16 ...
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How do I make Windows 7 less aggressive in caching memory?

I've noted recently that Windows 7 on my machine has been complaining about running out of memory and that I should close some programs. It would then usually point out a program I have running that ...
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4answers
567 views

Why are there different clockspeeds and timings on RAM?

I don't consider myself a novice when it comes to building computers or computer hardware in general, but I've never taken the time to fully understand RAM. Can somebody tell me why there is a need ...
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1answer
494 views

increase desktop responsiveness on linux while swapping

All GNU/Linux distributions I tested so far have the problem that whenever the ram gets filled and the system begins swapping, the whole desktop and graphical user interface becomes unresponsive as ...
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3answers
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What does fCK (RAM memory speed) stand for?

Looking at the specification of a RAM memory module from Kingston, it says: 800MHz fCK for 1600Mb/sec/pin What does "fCK" stand for?
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Windows 8 out of memory?

I thought that Windows 8 was supposed to be better with memory than Windows 7. So far, that is not my experience. When I boot up my brand new laptop (Samsung NP550P5C-S03CA Intel Core i5 3210M 8GB ...
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4answers
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Windows 7 100% Memory Usage (without any process listed as using that much memory)

When I plug my external USB 2TB hard drive into my windows 7 box, my RAM usage climbs up to all 4 Gigs (but in task manager it shows that all process are small) and the hard drive is churning like ...
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Windows 7 using exactly HALF the installed memory

I've taken this directly from system information: Installed Physical Memory (RAM) 4.00 GB Total Physical Memory 2.00 GB Available Physical Memory 434 MB Total Virtual Memory 5.10 GB Available ...
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2answers
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Why does unequal amounts of RAM in each slot decrease performance?

This page describes the RAM specifications for many of the MacBook laptops. In the section for my laptop (13" Pro Late 2011), it says: Additional Notes: For best performance, fill both memory ...
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2answers
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Will 8GB RAM stick work if my motherboard has limit of 16GB (for 4 slots)?

This one is quite tricky and I can't find any decent information source/documentation. I have Gigabyte motherboard from 2008: Gigabyte MA770T-UD3P rev. 1.0. It has 4 RAM slots and total limit of ...
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4answers
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How can I get my 64-bit computer to recognize all of my RAM

I've recently upgraded my system from 6GB of RAM to 12GB. Once I installed the new RAM, Windows 7 shows in my System Information that I have "12.0 GB installed (7.99 GB usable)". Although less common, ...
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How does Motherboard and CPU affect RAM choice?

I am seeking advice on which memory to use with my motherboard and CPU. Below are my components and some relevant information extracted from their official websites. NOTE: Although this is a very ...
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5answers
1k views

64 Bit OS and RAM

How much RAM can a 64-bit Windows 8 Ultimate Operating System use? I have read on the Microsoft website that you can place up to 512 gigabytes (GB), but to my understanding, I thought 64-bit implies ...
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6answers
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3GB RAM Installed and Detected by BIOS, Windows Vista 32bit Only Sees 2GB

I am attempting to install more RAM on a Windows Vista 32bit machine which is using a X6DAL-XG motherboard and the RAM amount reported in the BIOS is 3GB+, but Windows is only reporting 2GB installed. ...
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4answers
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Installed memory 4GB but only 1.93 GB is usable shows in system properties dialog?

In my Intel Core i5 2.80 GHz CPU , DH55HC series Intel mother board machine installed with windows 7 64 bit machine, when I right click my computer and see system properties I see that "Installed ...
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In Windows 7, is there a way to know how much memory a service is using?

In windows 7, is there a way (by using common interface or a custom utility) to know how much memory a specific windows service is using ? It seems most services are hosted by svchost.exe processes ...
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2answers
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Can I use faster DDR3 RAM than my motherboard allows?

My motherboard states it supports DDR3 1066/1333. Can I purchase DDR3 1600 and expect my system to drop it down to the highest level the motherboard supports? Will this change the Cas Latency or ...
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2answers
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What are these different kinds of memory usage in Windows 7 task manager?

In Windows 7's task manager, I can select different columns to show. There are a bunch that are related to memory and memory usage, but I'm not sure what it all means. I have a Dutch installation of ...
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2answers
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How do I interpret the specification of memory (RAM)?

When looking at memory there are a few specifications that I don't understand and was hoping to have clarification on. What do these terms mean, and how do they affect the systems performance? Feel ...
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2answers
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98-100% memory use, no process uses more than 25MB

I am having intermittent issues with my gaming computer. Sometimes, while playing Battlefield 3 (only 2 times the problem has occured), my memory usage goes to 100% of my 16GB machine. I close down ...
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3answers
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Can Linux scrub memory?

Does Linux have a mechanism to "scrub" memory? e.g. testing the memory and marking areas as dirty if they fail so that the system can continue to operate "safely" even with bad ram chips installed?!
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What is Performance Monitor telling me when my page faults / second are high?

I have a Windows 7 64-bit computer that is having performance issues. After some investigation, I have discovered that the page faults / second on it - as reported by Performance Monitor - are really ...
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how do people recover data from ram?

I'm just curious. I've read about law enforcement and what not recovering incriminating data from ram to get evidence, but how is it done? What kind of equipment would one need to recover files from a ...
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Will Mac RAM work on a PC?

I have some Mac RAM at school that is not being used. It has never been opened before, and one of the PC's needs a little extra. Will putting Mac RAM in be an issue? The RAM also is not labelled, how ...
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I've got RAM everywhere. How do I identify it?

I've pulled RAM from a bunch of old PCs and I'm ready to find the largest modules to reuse. Most of it is just SDRAM but some of it doesn't have any identifiable markings that might explain it's ...
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330 views

How to “swap in” again memory from page file to physical memory in Windows at once (like linux swap-off)

Is there a way to swap back in (to put back all the memory data that was put into the page file (or swap, whatever you prefer)) memory on a windows PC? On linux, one can easily do this with the ...
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3answers
3k views

How to findout which firefox tab is using most CPU or memory?

There are times when the firefox responds reluctantly. And it is not only when i have opened many tabs. But there are cases when i have opened as many as 20 tabs and firefox is working fine and there ...
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3answers
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Web browser memory usage

How come web browsers are so heavy in memory? I have Firefox opened with two tabs, and it takes over 800 MB of RAM, Chrome with four tabs takes over 1.2 GB! I mean, what's up with consuming ...
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1answer
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Why is the total memory usage reported by Windows Task Manager much higher than the sum of all processes' memory usage?

Task Manager shows my total memory usage at 90% of my 6 GB total, but no single process is using more than 250 MB RAM, and the sum of RAM use of all running processes is less than 2 GB. I've tried: ...
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1answer
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Is this RAM usage normal (huge non-paged pool)?

I bought an ultrabook today. It boots extremely quickly and everything, so obviously some sophisticated techniques are involved, but I'm confused because task manager shows over 80% RAM usage when I'm ...
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Just Dropped A RAM Inside Plastic Casing - Is it Dead?

I just dropped some laptop-sized RAM while it was in it's plastic wrapping onto my keyboard of my laptop. What's the chances of it failing because of this drop? If the RAM fails, would the failure ...
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6answers
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What is the relationship between CPU usage and RAM?

I have seen many times that my CPU usage is 100% and my RAM is only occupied for about 50%. What is the relationship between these two? How does one's performance affects the other?
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Windows 7 x64 - How can I test my memory?

People tell me that my computer may have some bad RAM. Is there a way to test it without special equipment?