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

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WIndows 7 64 bit reporting 3.00 gb usable memory with 4.00 gb installed [duplicate]

Possible Duplicate: How to enable 4GB in my Windows 7 64 bit? I have a computer that I have upgraded to Windows 7 Professional 64bit. It has an intel D945GB1 motherboard, Pentium D Dual core ...
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Add RAM to my desktop

I've never added RAM to my desktop PC yet. It has an Intel e5700 processor, and currently has 2GB of DDR3 RAM. Also it is 32-bit Windows 7. Am I right in thinking I can just buy some extra RAM, say ...
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Disable compressed memory in Mac OS 10.9 Mavericks?

Is there any way to disable memory compression in Mavericks? Ever since I upgraded, my Minecraft server has been using ludicrous amounts of CPU time and choking. I'd like to test without compressed ...
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Does every OS need RAM?

Is there an OS which can be used without RAM, specifically the kind I can create a bootable pendrive from and use it in the computer? This gets awkward, since booting is essentially loading OS in RAM....
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Invisible memory leak on Linux - Ubuntu Server (not disk cache/buffers!)

August 2015 Summary Please note, this is still happening. This is not related to linuxatemyram.com - the memory is not used for disk cache/buffers. This is what it looks like in NewRelic - the system ...
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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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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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How can I monitor video memory usage?

How can I monitor video memory usage?
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Why are RAM module capacities in powers of two (512 MiB, 1, 2, 4, 8 GiB)?

Newer computers usually have 2, 4, 8, etc. GiB of RAM. The older ones usually have 128, 256, 512 MiB or less but also in powers of two. What is the reason behind this? Why don't hard disks and DVD ...
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Too much memory getting used

I have been feeling this way for a while, looking at task manager mentally ballparking how much physical memory should be in use, and noticing a large disparity. I finally got around to measuring it. ...
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Upgrading laptop RAM [duplicate]

(This question was originally asked for my specific laptop: Dell XPS 15 L502X. But it seems that understanding I gained from the upgrade experience I am able help my friends to decide upgrading RAM ...
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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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CPU-Z says my PC3-10600 1333MHz RAM is actually PC3-10700 667MHz. Do I have 1333 or 667 MHz RAM?

CPU-Z says this: DDR3 4096 MBytes PC3-10700 (667 MHz) I am supposed to have PC3-10600 1333MHz. What am I not understanding? Or, is my RAM only half of what the label and seller claims it to be?
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Windows only sees 768 MB RAM out of 4 GB

I have a windows XP machine with 4 GB of memory. As expected (and discussed in a dozen or so other questions on this site) the OS could only see 3 and a bit... until yesterday. As of yesterday, the "...
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Windows 7 64bit - 16GB Ram utilizing only 4GB?

I've got 16GB ram and running Windows 7 64bit, but for some reason I think it's utilizing only 4GB? If I go into properties it says Installed memory: 16.0 GB, but if under some loads for example ...
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Why does my page table take up so much memory?

My 64-bit Windows 7 PC is very sluggish. I noticed in Task Manager that my memory usage is near 100% - however the usage reported for each process does not add up to the total 6GB (Firefox shows about ...
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Should I use an antistatic wrist strap when changing the RAM on my laptop?

I am about to upgrade my laptop's RAM and I'm concerned about using an antistatic wrist strap. Is it smart to use one or not very necessary? What are the chances I could damage my laptop?
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Does 64bit Windows 8 “low memory warning” have same limits as in Windows 7 x64? [closed]

Windows reserves some memory for it's internal use which is not normally allocated to applications. This reserve is seen most easily if you run without a page file or limit the pagefile to relatively ...
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What exactly does “(OC)” mean in products description

Note: this is not a shopping recommendation request I want to buy a nice and fast RAM and a motherboard that supports it. Lets say that I would want to take this RAM (2400MHz), and put it into this ...
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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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1answer
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How does RAM frequency and latency differ? How does it affect performance?

I have a question regarding two specifications of RAM memory, the amount of Mhz and the latency timings (example: 9-9-9-24). Which one of the two is most important for system performance and why? ...
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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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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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3answers
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MemTest is returning large numbers of errors in Test 7, no matter what ram I use

I have been having issues with this computer, and since MemTest said that there were errors on my RAM, I figured replacing it would fix them... However, after replacing the old stick of RAM, I am ...
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RAM compatibility

Is there a website where I can look up what kind of RAM my computer has, and what kind of RAM would I need to buy to ensure compatibility ?
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Why do we need multiple levels of cache memory?

In general a cache memory is useful because the speed of the processor is higher than the speed of the ram (they are both increasing in speed but the difference still remains). So reducing the number ...
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Difference between DDR3 SDRAM and DDR3 SODIMM for laptop

I have an ASUS A55VD-NS51 laptop with 6GB of RAM and I've been wanting to upgrade the memory for a while. I've finally decided to go through with it, but I am unsure as to whether to buy DDR3 SDRAM or ...
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Mac OS X using over 4 GB of memory with nothing running

My Mac seems to be using a ridiculous amount of memory when close to nothing is running. Immediately after restarting my computer, and only starting up a terminal and the activity monitor. How could ...
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Which memory is accessed by the initialization code on a PC?

CMOS, DRAM, ROM and EPROM are all types of memory found in PC systems. Explain which of these is used to contain the initialisation code and which are accessed by this code. The first answer is ...
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Making Windows XP run on 256MB of RAM

I have a Windows XP system which has only 256 MB of ram, and unfortunately upgrading the RAM is not an option (it needs DDR, a DDR2 chip didn't fit and I'm not in town long enough to order one online)....
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1answer
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Enable 4 GB RAM usage on Windows 7 32-bit [duplicate]

Possible Duplicate: Why does Windows only show about 3.5 GB of my more than 4 GB of RAM? I have 4 GB of RAM which I understand is the maximum for Windows 7 32 bit. My system recognizes ...
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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 i7-...
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How to check if two memory modules are being used with dual channel?

I have two 1333 DDR3 memory modules with different brands. I wonder if they can be used in a dual channel setup. How can I check that?
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How does hibernation work?

I'm wondering how hibernation works. Obviously it writes the contents of RAM to disk, but is there anything else? does it save/restore CPU state? cache state? anything else?
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Running Operating System from memory

Assuming SSD's are extremely prone to faliure how economical would it be to load an OS into main memory and run it from there? I can think I can deal with a few obvious drawbacks (I've survived ...
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Can I use non-ECC memory in a machine that already has some DDR2 ECC memory?

I have a developer workstation that has registered DDR2 ECC DIMMs already installed. I'm planning on getting some more RAM. Can I add memory modules that aren't ECC and/or registered? I mean, does the ...
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What's the difference between a disk and a drive?

Would this make the term 'disk drive' a slight misnomer? Also, I thought RAM was equivalent to the term 'volatile' memory, but apprently 'hard disk drives' are also RAM and not ROM... any ...
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ECC registered vs ECC unbuffered

I would like to build a storage server (based on GNU/Linux or FreeBSD) which will be on all the time. To prevent data corruption (which is unlikely to happen as I never had such a problem, but better ...
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Does more RAM on Mac really improve performance?

I'm coming from a PC, loaded with a Core 2 Quad CPU and 8GB of DDR2 RAM. I was running Premiere CS3. I'm new to Mac so I'm not sure if this will help performance: Will increasing my 21.5" Core 2 Duo ...
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How do I give a program high priority for memory and processor speed?

I use NaturallySpeaking a lot, and it's a great program, but it's very processor and memory intensive. As long as it's being used, it works fine, but if I tab away to another program for five minutes ...
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4gb single channel vs 3gb dual channel

So, I am looking into a new laptop, and I have 2 choices on RAM. There is a 3GB Dual Channel DDR3 1333 in one system, and there is a 4GB Single Channel DDR3 in another. So my question is, is it ...
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3answers
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12GB of RAM only 8GB is usable on Windows 7 64-bit

I'm running a Dell Studio XPS, with quad core processor, two threads per core, with 12GB of installed RAM. According to Windows, only 7.99GB of that RAM is usable. The really weird part is, up until ...
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What's the relationship between CPU, RAM and performance?

I have an HP EliteBook Folio 9470m with an Intel Core i5 processor at 1.9GHz and 4GB RAM. Is it useful to buy an additional 4GB RAM memory with this CPU? Or would the extra RAM be wasted from a ...
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1answer
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How to allocate more processor power to my (Ubuntu-based) Virtualbox system in Windows 7?

I have installed an 32-bit Ubuntu based Linux OS, Elementary, on a VirtualBox installed in Windows 7 (32 bit) , on a 64-bit laptop which has a 2-core Intel i3-2330 CPU @2.20Ghz, and 4GB RAM (2.45 ...
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2answers
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Can I install 1333 MHz memory onto a laptop supporting up to 1066 MHz memory?

I have a question regarding my laptop's RAM. I have 2 slots. One is empty; the other one has a Samsung SODIMM 204-pin 2GB DDR3 1333MHz SDRAM CL9, non-ECC, unbuffered module, running at 1066 (!) MHz, ...
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1answer
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Windows 8 Task Manager RAM Usage Accuracy

The new Task Manager has a great UI in windows 8, however, there are some discrepancies in the data I can not account for: Machine: 8 GB of total ram. (This is a physical machine, not a virtual) The ...
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Making full use of memory on graphic cards

Onboard graphics cards often reserve some of the system main memory for their own use. For a computer with a separate graphics card which has its own memory, is this possible that some of it be ...
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Windows 7 x64 Out of Memory Error - With over 1GB still available [duplicate]

I've been getting sporadic "Out of Memory" popups while playing games in fullscreen windowed mode lately (namely Arma 3 and BF4). I didn't get these before switching from fullscreen to fullscreen ...
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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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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 ...