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

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How can virtual machines consume so little RAM on the physical host machine?

I'm running VirtualBox on a Windows XP machine with 2GB RAM. I've created a virtual Ubuntu machine and allocated it a base memory of 750MB. Just to put it to a test, I ran 20 things at once on the ...
22
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1answer
3k views

Windows 7 RAM says only 16 GB of 24 GB of RAM is available

I have Windows 7 on a gaming PC. I have an Asus Rampage Formula 3 motherboard with 24 GB of RAM. When I go to system properties, it shows that I have 24 GB of RAM, but it says in parenthesis ...
22
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3answers
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Greasy water in laptop's DIMM slot

My wife was having dinner in front of (on top of) the laptop and she spilled some soup onto it, right above the touchpad. Almost all of the soup ended up in the upper DIMM slot which sits underneath ...
22
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1answer
3k views

Resuming Windows 7 from Hibernate after a RAM change?

I ordered a pair of new DDR3 RAMs, I will install them to the empty RAM slots once they arrive. What would happen if I hibernate my PC, then install the new RAMs, and then wake it up from ...
22
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3answers
12k views

Why PCs need much more RAM than video game consoles to run the same games? [closed]

It seems strange to me that every 7th generation console has much less memory than contemporary PCs, but games on consoles still run pretty smooth today. For example: PS3 has 256 MB memory for system ...
21
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7answers
4k views

Is it possible to use a storage disk (such as a USB drive) as RAM?

My motherboard (HP Pavilion s3000y) only supports 2GB of RAM max. Which means that I can only allocate 1GB for running VMs, and applications that use a lot of RAM are slow (such as games and Visual ...
21
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4answers
2k views

Is there a certain or measurable advantage to using ECC RAM in a desktop PC?

I fuss a lot over building stable machines -- in that I absolutely hate crashes, reboots, funny behaviour, etc. -- and so error-correcting a.k.a. ECC RAM would seem to solve a big problem: memory ...
21
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1answer
35k views

Why is the total memory usage reported by Windows Task Manager much higher than the sum of all processes' memory usage? [duplicate]

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: ...
20
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4answers
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Can I use two types of DDR3 in the same motherboard?

I have a DDR3 RAM of 1333MHz of 4GB on my motherboard (Asus H61M). I have another stick of RAM DDR3 1600 MHz of 4GB. Can I use this in the other slot along with the original to reach a combined 8GB? ...
20
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9answers
58k views

Is there way to enable more than 4 GB RAM in 32-bit Windows OS?

I upgraded my PC to 4 GB RAM and I get only 3 GB. Windows 7 32-Bit consider that I've 4 GB RAM but didn't use more than 3 GB. Someone told me that MS Windows 32-bit doesn't support RAM larger than 3 ...
20
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3answers
7k views

Which have better performance Two 2GB RAM sticks or One 4GB RAM stick? [closed]

I am planning to buy a new PC. The mainboard has 4 memory slots, The PC has Windows 7 64-bit installed. Which approach is better regarding the performance buying: Two memory sticks of 2GB? One ...
20
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2answers
49k views

How do I detect my computer's RAM configuration?

My Dell Inspiron PC running Windows 7 reports that it has 2GB of RAM installed. Is there any way I can detect how this memory is distributed short of opening the side of the machine and taking a look? ...
20
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7answers
2k views

What to do with a ton of extra memory?

I have 8gigs of RAM in this machine. I never really use more than say 4gigs (includes my virtual machines I use for dev testing). What can I do with this extra space to best improve system ...
20
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8answers
78k views

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. ...
19
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2answers
6k views

Can I add RAM sticks from an old PC to improve the performance of the new one?

After 6 good years, I think my old Vostro 410 died on me the other day (RIP). The PC won't turn on so the motherboard appears to be dead. I'm thinking of replacing it with a Lenovo M83 Pro small-form. ...
19
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5answers
15k views

Does installing larger RAM means consuming more energy?

Since every bit of a dynamic memory module needs to be refreshed to keep it's data, does that mean that if I install a module with more capacity than the current one on my laptop, more energy will be ...
19
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3answers
26k views

Why is dwm.exe using so much memory?

I've scoured the web, but I'm sick of reading "scan your computer for viruses" and "upgrade your RAM" on answers to similar questions to this. I understand that dwm.exe is for (simply put) caching ...
19
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3answers
2k views

How to tame Linux responsiveness, memory, and paging

First question on overflow =)... +100 bounty. Couldn't think of something I really cared about until now: I'm really fed up with the state of Linux desktop responsiveness, e.g. ...
18
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4answers
4k views

Why does Linux use a swap partition when the kernel supports paging/virtual memory anyway?

As far as I understand paging and swapping, they're completely different concepts. While swapping means, that a process is either completely in physical memory or on the hard drive, with paging parts ...
18
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7answers
47k views

Is it safe to use RAM sticks with different frequencies?

I have two RAM sticks: one 533 MHz and one 667 MHz. Is it safe to use both of these in the same system?
18
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3answers
10k views

Windows 10, 'System' process taking massive amounts of RAM

Since I upgraded to Windows 10, my system has been consuming RAM excessively I've been reading a bit and determined it's likely a driver leaking memory. So I got myself the Windows Driver Kit and ...
18
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5answers
55k views

svchost.exe high memory usage - wuauserv

I'm running Windows 7, and I've been experiencing high memory usage from one of my svchost.exe processes. Services under that particular process are BITS, EAPHost, IKEEXT, LanmanServer, MMCSS, ...
18
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3answers
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How do I dump physical memory in Linux?

How would one create a dump of the physical memory (RAM) in Linux? What software if any is available for this purpose? I have read that one should not write to a local disk but rather send the data ...
18
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4answers
4k 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 ...
17
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6answers
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16GB Ram - Force Windows 7 to use as much RAM as possible?

I was wondering if there is any way to configure Windows to consume MORE ram. I have a desktop PC with 16 GB of ram and only 2 is used on a normal workload. The maximum which i witnessed till now is ...
17
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6answers
6k views

Does more RAM usage cause more battery usage?

I'm using a 2 year old 15" AMD laptop running Windows 8, and its battery life is not as long as the brand new ultrabooks for sure. In the place I'm currently working I don't have access to a power ...
17
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6answers
12k views

Wipe RAM on shut down to prevent Cold Boot Attack

My system is encrypted using Full Disk Encryption, i.e. everything except /boot is encrypted using dmcrypt/luks. I am concerned about Cold Boot Attacks, where researchers demonstrated, that content ...
17
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1answer
23k views

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 ...
17
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3answers
8k views

Why is chkdsk using 90% of my RAM?

When I built my new computer, I gave my old one to my parents who were in dire need of an upgrade, after cleaning everything out of it, of course, leaving just the OS and a few programs. It worked ...
17
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4answers
42k views

How to test video card memory

I want to test the memory of my video card because there are vertical lines on my screen. I have done some basic troubleshooting and it seems that the problem is in the video card. I want to validate ...
17
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3answers
39k views

How can I make my computer use more RAM?

I'm running Windows 7 64-bit with 8GB of RAM. The problem is, I very rarely use all of it. I do some video editing from time to time and it definitely comes in handy then, but for everyday use, I'm ...
16
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5answers
12k views

Windows 7 unreasonable ram usage

I have a fresh install of windows 7, and my ram in normal startup goes up to 2.5 GB. I looked at task manager, and there's at least 1.5 GB missing from there and in resource monitor as well. No ...
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4answers
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Is killing a process still considered bad for memory management?

So I am having a little discussion with my boss about memory management. I've been told that killing a process does not allow it to deallocate memory. Is that still the case, or was that years ago? ...
16
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6answers
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Why are RAM module capacities in powers of two (512 MB, 1, 2, 4, 8 GB)?

Newer computers usually have 2, 4, 8, etc. GB of RAM. The older ones usually have 128, 256, 512 MB or less but also in powers of two. What is the reason behind this? Why don't hard disks and DVD ...
16
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3answers
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Commit charge is 100% full but physical memory is just 60% when using no page file

I have disabled the page file in my system (hard disk is too slow, cannot buy a new one right away, cannot move page file to another partition). When I see into Resource Monitor, using memory ...
15
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2answers
4k views

What do the memory timings and RAM mean?

On every piece of RAM you'll see the timings like: "2-2-2-5". What is this all about? What should I buy?
15
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2answers
31k views

1.35 V RAM in a 1.5 V system - Will it fry or overclock?

The general question is: When installing low voltage RAM in a board that outputs a higher voltage to the memory module, will this fry the RAM or will it be like overclocking it? My specific case is: ...
15
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2answers
3k views

What does 'Max allocated RAM size' mean on this mobo?

I see in multiple webshops that this MSI Z87 G41 PC Mate mobo has an attribute called Max Allocated RAM Size: 1760 MB What does this mean? Can the motherbord handle maximum 1760MB memory in total, ...
15
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2answers
474 views

Are 64-bit processors “faster” than 32-bit ones, simply because they are 64-bits? [duplicate]

I have pondered that some say "32-bit is old news" because you are limited in RAM without cutting around, such as with PAE. Assuming first that the following factors weigh in on the processor's speed ...
15
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4answers
8k views

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 ...
15
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2answers
9k views

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 ...
14
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6answers
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My RAM / memory sticks got wet, can I still use them?

I had a small pile of accumulated, salvaged desktop RAM / memory sticks sitting on my desk. I made the apparently unwise decision to drink my triple-extra-large sody-pop near them, and to my demise, ...
14
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8answers
112k views

Why is all my extra RAM marked as “hardware reserved” in Windows 7?

I have a new HP Z800 Workstation, running Windows 7 Enterprise 64 bit. Z800 Specs are here. The machine has 4GB of RAM -- windows reported 1.99GB available, 2GB was "hardware reserved". I added ...
14
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6answers
1k views

How does a free-up RAM utility free up RAM?

Does it discard the RAM away that was used by programs or transfer it to a page file on the hard disk? Or does it just clean up the unaddressed RAM?
14
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3answers
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What do motherboard RAM slot colors mean?

I have always seen that the motherboard RAM slots are colored in pairs, but never knew what it meant. I just put the 2 RAM in, and after a few tries it always worked. But after I tried to install a ...
14
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9answers
10k views

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 ...
14
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4answers
57k views

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 ...
14
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12answers
21k views

Is putting the swapfile & temp folder to ramdisk a good idea in Windows 7 64 bit with lots of RAM?

I want my Windows to run as fast as possible. If I have 12GB RAM in Windows 7 64bit, quad core CPU, and all apps fit in memory, will the swap file ever be used for anything? The question is about if ...
14
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4answers
10k views

Is there an equivalent of Memtest86 for CPUs?

I need an easy way to do system stability tests. I have come to rely on Prime95 which does a fantastic job of proving stability (or instability) very quickly; but it requires an OS installed. I would ...
14
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3answers
11k views

What's using my swap (Ubuntu)?

I have an Ubuntu 8.04 server which is running a database and a bunch of Java application servers. Its memory configuration and usage is: total used free shared buffers ...