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

learn more… | top users | synonyms (1)

21
votes
3answers
10k 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 ...
20
votes
9answers
57k 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
votes
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
votes
4answers
55k views

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? ...
20
votes
3answers
6k views

What limits a motherboard from supporting more memory?

My specific question is with the ASUS M3N78-VM motherboard that my home server uses. I currently have 4x2GB installed for a total of 8GB but I was hoping to upgrade to say 16GB (4x4GB). The official ...
19
votes
2answers
4k 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
votes
5answers
14k 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
votes
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 ...
19
votes
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 ...
19
votes
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
votes
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
votes
2answers
43k 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? ...
17
votes
6answers
67k views

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
votes
3answers
38k views

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 ...
17
votes
1answer
19k views

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: ...
17
votes
4answers
38k 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 ...
16
votes
5answers
9k 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 ...
16
votes
5answers
28k views

Why not use SSD space as RAM?

I am new to the hardware side of things. I run a few machines which have 400GB+ SSD's and 32GB RAM. I have been thinking about going up to 64GB RAM, however, I was thinking, since SSD's are ...
16
votes
6answers
5k 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 ...
16
votes
4answers
1k views

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
votes
6answers
18k views

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
votes
3answers
6k 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 ...
16
votes
3answers
22k 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 ...
16
votes
3answers
31k 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 ...
15
votes
7answers
36k 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?
15
votes
2answers
3k 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
votes
2answers
406 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 ...
14
votes
6answers
3k views

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
votes
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
votes
6answers
46k 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. ...
14
votes
12answers
20k 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
votes
4answers
9k 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
votes
2answers
2k 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, ...
14
votes
6answers
11k 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 ...
14
votes
3answers
10k 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 ...
14
votes
1answer
2k views

What hardware device used to eat up 1.4GB of my 4GB RAM, and now suddenly after no hardware changes eats up 2.2GB?

This is more or less a continuation of What hardware device eats up 1.4GB of my 4GB RAM? While I have more or less accepted the solution there that for some mysterious reason, after a BIOS upgrade ...
13
votes
6answers
4k views

Windows XP: 4GB to 16GB RAM upgrade

I'm on a 32 bit OS Windows XP Home–will be upgrading to a 64 bit XP Pro–and I'm upgrading my RAM to 16GB. Should I see a difference? I typically compress a ton of files at one time. The 32 bit @ 4GB ...
13
votes
8answers
101k 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 ...
13
votes
3answers
16k views

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 ...
13
votes
2answers
389 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 ...
13
votes
1answer
20k 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 ...
13
votes
2answers
12k views

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 ...
13
votes
2answers
8k views

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 ...
13
votes
2answers
4k views

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 ...
13
votes
2answers
7k 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 ...
12
votes
5answers
3k views

How can a 80-bit floating point be used by a 32-bit system? [duplicate]

Since a 32bit system can't manage a 2^33 number (because the obvious 32-bit limit), how can manage a 80-bit floating point number? It should require "80-bit"...
12
votes
9answers
25k views

How to Check RAM Size without Looking at Motherboard

As far as I am aware, one can view the RAM Size in System Properties: From the above screenshot it seems that My RAM is 3.5 GB, but as far as I can tell I actually inserted 2 two GB RAM into my ...
12
votes
5answers
2k views

Increase page file or buy RAM?

I've a 10+ year old XP PC which surprisingly still works however one of the 256MB RAM finally died. Now I am left with just 256MB. As expected the PC became slower however when I tried to increase the ...
12
votes
3answers
18k views

Can you tell DDR and DDR2 apart visually?

I'm getting a few old computers to take apart for parts soon. Most of them are definitely using DDR2 RAM, but there is the possibility that one or two of them are using DDR RAM. Since these are ...
12
votes
5answers
50k views

How much memory can a 64bit machine address at a time?

If the memory is byte addressable, shouldn't it be 2^64 / (2^10 * 2^10 * 2^10) = 2^34 GB ? A general Google search says 8GB or 16GB max. How is that true? Also, how does it depend on the Operating ...