Questions tagged [memory]

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

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12
votes
9answers
30k 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 ...
0
votes
1answer
79 views

Virtualization in Linux [duplicate]

Possible Duplicate: Can I run XP as a virtual machine with this hardware spec ? Does it require too much RAM if i have to run windows on linux. Currently I have 512+128 MB DDR ram. I want to run ...
1
vote
3answers
2k views

ASUS M4A79 Deluxe Motherboard & DDR2 800/1066 Memory Compatibility/Limitation?

I am looking to buy a ASUS M4A79 Deluxe motherboard at NewEgg and under the specs there is a note regarding the memory standard for this MB. It says: Memory Standard: DDR2 1300(O.C.)/1200(O.C.)/...
11
votes
12answers
1k views

RAM, Processor, L2Cache, Etc. - What gives you the most “Bang for your buck”?

I am not a hardware person when it comes to computers so when I buy a new one I just pick the one with the biggest numbers, but I know I am most likely wasting money. If you're going to purchase a ...
9
votes
6answers
42k views

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 ...
4
votes
4answers
492 views

In winxp, I have 4GB of RAM, am using 1.77GB, but programs keep paging out to memory. Why?

All in the title. What's the point of more RAM if my programs will page out instead of using it? To be more specific, here's an example: I open 12 tabs in a browser. I look at one of them while using ...
2
votes
2answers
551 views

Ram Placement order?

This may silly but... I have a machine with 2GB if Ram and I just bought 2 more. All 4 DIMMS have the exact same specifications. I thought I'd move the older 2 to the last last 2 slots and put the ...
6
votes
7answers
16k views

Is 4GB Ram sufficient for a 64 bit OS

I am aware that 32 bit operating systems cannot make full use of a 4GB installation, however is that extra .5 GB in any way useful when using 64 bit? Doesn't the double word length of memory pointers ...
12
votes
3answers
34k views

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 ...
10
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4answers
11k views

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 ...
8
votes
5answers
9k views

Why can't Windows 7 x64 use all installed memory?

I'm running Windows 7 x64 RTM on a Dell Latitude D520 w/ 4gb memory. The system control panel reports: System type: 64-bit Operating System Installed memory: 4.00 GB (3.24 usable) Why isn't all ...
0
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1answer
113 views

Memory Latency Specs Utility?

Is there a utility that can tell me the latency of the RAM I'm using? I'm using Windows Vista.
5
votes
2answers
10k views

Rules for adding/upgrading RAM

I need to upgrade RAM on my machine. I've done this before, but it was ages ago. There were rules or guidelines then as to what could and couldn't be done (some rather obvious) : All RAM to be of ...
8
votes
2answers
14k views

How do I detect the RAM memory chip specification from within a Linux machine

I'd like to add more RAM to my Ubuntu installation ( running on a Dell Inspiron 640m ). Is there any inbuilt command or package to find out the current RAM chip specifications (manufacturer, type, ...
4
votes
2answers
234 views

How is Mac OS memory handling different from Windows?

I recently switched to a Mac, and have a laptop with 4GB of ram. When I look in the prosess explorer, I can see that almost all the memory is used, there is only a few hundred MB left. But almost 2GB ...
12
votes
12answers
37k views

Is it possible to limit the memory an application is allowed to use?

I've used tools to effectively reduce the amount of RAM available to all applications, but is there something to do the same on a per application basis? Specifically, I'm looking to limit the memory ...
1
vote
1answer
1k views

Accessing memory of Sony Ericsson k750i under Linux

I want to retrieve some photos taken with the camera on this mobile phone. But upon connection, it doesnt automount. An icon is displayed in computer:/// in Nautilus (Ubuntu/Gnome). But upon ...
5
votes
4answers
9k views

Is Mac OS X Leopard (10.5.x) 32 bit or 64 bit?

Is Mac OS X Leopard (10.5.x) 32 bit or 64 bit? Can I address more than 4GB of RAM?
30
votes
19answers
15k views

What applications, if any, benefit tangibly from more than 4GB of RAM? [closed]

I looked through here for a bit, but didn't see this question. I am questioning whether it is worth putting more than 4GB of RAM into my current desktop, and whether there are applications that will ...
57
votes
10answers
205k views

How can I tell what RAM will fit my computer?

If I want to add more RAM to my computer, how can I buy something compatible? What kinds are there? How do I determine which kind my computer will accept and how much I can add?
0
votes
2answers
723 views

PC4200 Memory in Dell Precision T3400?

Is there any way to get PC4200 (ECC) memory to work in a Dell Precision T3400? The company purchased this machine a few months ago for us for dev work, but spec'ed it with 2GB of RAM. That doesn't ...
3
votes
6answers
3k views

Why would BIOS count 3 GB and Vista show 4 GB RAM?

I upgraded my Vista computer from 2GB to 4GB of RAM. However, upon boot up, it shows only 3.072 GB of memory. Yet Vista says I have 4.00 GB of memory. In addition, the computer doesn't seem "twice ...
6
votes
1answer
631 views

What steps do you take when overclocking?

When overclocking your system? what steps do you take to get a maximum but stable overclock out of your system? I've personally just slammed up the FSB speed until my system can't run Prime95 for a ...
24
votes
4answers
2k views

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 ...
2
votes
4answers
1k views

Is DDR3 worth it? [closed]

I'm looking at some of the gaming PC's on NCIX.com and the ones that support DDR3 are at least about $400 more than the most expensive DDR2 PC's(when other factors are ignored). Is it worth upgrading ...
3
votes
7answers
253 views

Computer is dying--what should I be looking for?

Okay, I'm a bit knowledgeable with pooters and such, but i'm confused. My computer is dying slowly, and I'm not sure what part is causing this. Computer details: Vista, dell machine, intel Q6600, ...
1
vote
8answers
2k views

Given a processor specification how can I figure out what RAM it can use?

If I have a number of varying processor specifications (x86, x64, PII, P4 etc) can I accurately calculate the memory (speed, size, etc) that will work with the CPU? I appreciate that the motherboard ...
1
vote
6answers
1k views

Windows XP slowdown, what's to blame?

I run Windows XP and after a while it seems to get real sluggish. I suspect it's heavy memory consumption of Firefox, but have noticed several other programs are 'slow' to exit when I reboot. Is ...
7
votes
5answers
725 views

How do I know when to upgrade RAM in Vista?

Task Manager: XP on the left, Vista on the right. On XP, I would check to see if Peak Commit Charge was approaching Total Physical Memory. When Peak exceeded Total during normal usage, the page file ...
0
votes
8answers
14k views

4GB memory seen as 3GB in BIOS

I have a 945GCM S2L Motherboard which has 4GB memory (2x2GB) running windows vista x64. The RAM is getting reported as 3GB in the BIOS, Total Physical Memory also shows 3GB, Task manager also shows ...
3
votes
4answers
2k views

Vista: How to use all my RAM?

To make a long story short, I just upgraded my PC with an i7 920 processor and an ASUS P6T motherboard. Things worked out so that moving from 6gb of RAM to 12gb was nearly free - So I did it! Now I ...
3
votes
5answers
8k views

Why would my computer screen just say NO VIDEO INPUT after installing new RAM?

I have a asus p5b mx motherboard and just put in two 2GB pc2-5300u-555 chips. Now when I turn on my computer: keyboard lights flash normally "NO VIDEO INPUT" just floats around the screen I just hear ...
6
votes
3answers
28k views

How do I know which way my RAM chips should be facing when I click them in?

I have a asus p5b mx motherboard and just bought two 2GB pc2-5300u-555 chips. I don't remember which way the one's I took out were facing and it seems I can click these in either way. Does it matter ...
10
votes
5answers
2k views

What happens when you install > 4GB of RAM in a computer with a 32-Bit OS?

So I'm a programmer and I'm not a complete idiot so I know exactly why you can't access memory where you can't have pointers. But I've never tried this and I don't think I ever will because it seems ...
3
votes
4answers
166 views

Is it possible to purchase hardware to add Memory to a motherboard?

Is there a piece of hardware that I can buy that will allow me to use more than the two slots my machine provides for memory? If so will it run as fast on it?
18
votes
2answers
6k 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?
4
votes
4answers
342 views

Slow computer, can someone explain my task manager screenshot

Does this screen shot indicate that my computer could use some more memory? Please detail why if possible.
1
vote
3answers
861 views

Ram capacity of my computer

2 years ago I bought a Dell Dimension 9200 desktop computer as a high end gaming computer (at least, back then it was a top of the line computer). The computer was ordered with 4GB of RAM, but came in ...
2
votes
2answers
1k views

Why does the MacBook Pro show only 3GB of memory when 4GB is installed?

I've been using my MaBook Pro happily for months but only recently realized that 1 GB is missing. Is there something wrong with my MacBook? It seem to runs fine.
5
votes
6answers
12k views

Should I be worrying about Single Channel and Double Channel for my RAM?

I've got an Asus P5N-EM HDMI motherboard. When I run CPU-Z, it says my Memory is Single Channel. Currently, i have 2x2GIG Kingston DDR2 ram modules installed. These are the screenies from CPU-Z: ...
10
votes
4answers
625 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 ...
5
votes
4answers
2k views

Is there a way to compact OS X's swapfiles?

Is there a simple way to compact the /var/vm/swapfile0 etc, short of rebooting? They can get quite large if things start swap'ing, and my laptop doesn't have much free disc space..
7
votes
3answers
27k views

Can a 800Mhz memory stick be used in a 400Mhz slot?

I have a 3 years old ThinkCentre (A52, type 8381). It has 1GB of RAM in 4 256MB sticks. According to the model spec, it supports 400Mhz DDR2 memory. I would like to increase the amount of RAM I have, ...
4
votes
6answers
13k views

Memory upgrade to 8GB on unibody MacBook

I bought the 13" unibody MacBook one month prior to it's upgrade to become the new improved 13" unibody MacBook Pro (with unopenable battery compartment, extra 3 hours of battery life, more color ...
2
votes
8answers
9k views

“Install memory in pairs” How does that work for 3GB?

I just picked up a used Thinkpad X60 for the road, and am maxing out the memory on it. According to the docs, it can handle 3GB max, with a total of 2 slots. In the same breath, the docs mention "...
6
votes
6answers
900 views

Why is ram for the new macbooks so expensive?

I was pricing up a new Macbook unibody 17" and whilst following my general rule of giving a laptop as much ram as it can physically take, I fell off my chair when I saw the price. $1000 US for an ...
2
votes
3answers
1k views

How can I tell if can increase RAM from 2 to 4 GB on my ASUS P5B MX motherboard?

I have a ASUS P5B MX motherboard. I have 2 slots for memory, each filled with a 1GB chip, i.e. 2 GB total. I would like to buy two 2GB chips for 4 GB total. But searching for "ASUS P5B MX" I just ...
3
votes
5answers
591 views

What should I do with my old memory?

I just replaced the 2 1GB DIMMs in my MacBook Pro with 2 x 2GB DIMMs. What can I do with the old memory?
49
votes
5answers
7k views

How to Determine which Firefox Add-ons are Using the Most Memory

I love Firefox for its add-ons. I have a lot of them installed, which obviously increases memory use. But it seems that some add-ons are better than others in that department. Does anyone know a way ...
0
votes
2answers
3k views

iTunes memory usage

Why does iTunes use upwards of 70 megs of ram when it is minimized to my system tray playing music? Update I understand that iTunes is a resource hog :). What I'm trying to find out, is what part of ...