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

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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 ...
9
votes
2answers
3k views

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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2answers
3k views

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 ...
6
votes
2answers
12k views

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 ...
6
votes
2answers
15k views

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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1answer
11k views

Installed Memory (RAM): 8GB (4GB Useable)

I have 4X 2GB RAM sticks installed, Windows 7 Ultimate x64 shows "Installed Memory (RAM): 8GB (4GB Useable)" in the system information. The motherboard says it supports up to 16GB of memory. I had ...
4
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5answers
19k views

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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4answers
34k views

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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3answers
327 views

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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3answers
2k views

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 ...
2
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1answer
8k views

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 ...
2
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1answer
4k views

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 ...
2
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4answers
288 views

What could cause a computer to slow down over time?

I have an application/game that ran smoothly a few months ago but lately I've realized it runs more sluggish than usual (the frames per second get quite low). I thought maybe something I installed is ...
2
votes
1answer
964 views

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 ...
2
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5answers
2k views

Linux for 128 MB of memory [closed]

I need a Linux distribution which has got drivers for pendrives and could play the music. What version could you recommend for me?
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vote
1answer
201 views

Mixing rams with different frequencies and sizes

I have a computer with 2× 1 GB DDR3 1067 MHz RAM modules. Now I bought 2× 2 GB DDR3 1600 MHz modules. My questions: Should I remove the 1 GB modules and use the new ones only (2× 2 GB = 4 GB ...
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vote
2answers
5k views

Is there a technical reason why 32-bit windows is limited to 4Gb of RAM? [duplicate]

Possible Duplicate: Why does Windows only show about 3.5GB of my 4GB+ of RAM? can a 32-bit OS machine use up all 8GB RAM + 20GB page file? As you can see in this table, all versions of ...
0
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1answer
1k views

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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2answers
30k views

Windows 7 having high physical memory usage, how to reduce it?

This is a pro active question, right now I am not facing any problem, thou it may create a problem anytime which I just can't afford. I am using VMware® Workstation - version - 8.0.1 build-528992 I ...
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5answers
2k 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 ...
8
votes
3answers
6k views

Only 3.2GB of 4GB RAM detected on 64-bit Debian

I'm running Debian Squeeze (x64): # uname -srvmo Linux 2.6.32-5-amd64 #1 SMP Mon Jan 16 16:22:28 UTC 2012 x86_64 GNU/Linux I have 2 compatible 2 GB sticks of DDR2 in my G31M-S motherboard. It ...
8
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4answers
2k views

why is some of my swap space being used, when I still have unused RAM?

More of a curiosity than a problem; and, I admit, something of an embarassingly basic question: I've noticed that on many occasions, on my Linux machine I will have ~500MB of swap space in use, even ...
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votes
3answers
20k 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, ...
6
votes
4answers
477 views

Are there any benefits to using identical memory modules?

Are there any benefits from running eg. two identical 1G rams over two different, but same-clocked? The motherboard doesn’t support dual-channel operation.
6
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1answer
803 views

Is it possible to use GPU memory as more main memory?

I have a ATI Graphics Card with 1G of RAM. GPU-Z says that 143MB (dedicated) and 75MB (dynamic) is being used on the card (GPU). Is it possible to get your PC to use GPU as more RAM (main memory) for ...
6
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3answers
10k views

Can RAM with a higher speed work?

I have the memory below and I am looking at using the one below it, would it be OK to use? It appears to be a faster speed, is that OK? Also, mine says PC 4200, the new one says PC 2 5300 and the ...
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votes
1answer
8k views

Hardware error messages from syslogd

I have a 64-core AMD server running CEntOS on which I was running a long job. In the midst of the output, I see these lines. It appears to be a memory error. How severe is this and what exactly does ...
5
votes
1answer
3k views

How much of a performance hit using asymmetrical dual channel RAM?

As a follow-up to my question Can a P55 chipset support 6GB as 2GBx3?; I understand there might be a performance hit using an odd-number of sticks. My question therefore is - How much of a ...
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5answers
1k views

3GB of RAM showing up as 2GB

Last year I built a Core i7 920 system based on the ASUS P6T Deluxe motherboard. I have 3x1GB of DDR3 (triple-channel configuration), but only 2GB is being reported by: Windows XP, CPU-Z, the BIOS. Is ...
4
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1answer
3k views

Memory is being appropriated

I am having an issue with my motherboard "appropriating" memory. I have 2x2GB installed (exactly the same chips, brand new). The bios shows 4096 total with 1152 appropriated leaving 2944. When I only ...
4
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5answers
33k views

How to patch Windows 7 32bit to use more than 3.25GB of RAM [duplicate]

Possible Duplicate: Enabling PAE on Windows 7 32-bit? I heard there was some kind of patch that let's a 32bit Windows installation use more than 3.25GB of ram(which is the limit for a 32bit ...
4
votes
1answer
749 views

Matched DRAM — Why? Is it important?

Crucial's website tells me: Although the memory can be installed one module at a time, the best performance comes from using matched pairs of modules. What exactly does that imply (what exactly ...
4
votes
3answers
5k views

8 GB RAM installed, only 7.5 GB usable. Windows 7 64-bit

I just upgraded my computer's RAM, adding another 4 GB to the computer. Windows 7 acknowledges that 8 GB is installed, but says only 7.5 GB is accessible. Any idea why? I thought since I had the ...
4
votes
3answers
1k views

Are there any advantages to running a 64 bit OS on 4GB of RAM? [duplicate]

My laptop has 4 gigs of DDR2 RAM and I am currently using a 32bit windows 7 OS. Will I notice any performance difference if I upgrade to 64bit or does all the benefits of X64 start at 5GB of RAM?
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3answers
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Is 1GB + 1GB RAM better than 2GB +0.5GB?

My laptop has two slots for RAM, and currently has two 512 MB chips, for 1 GB. Windows XP is running terribly slow on it, so I want to upgrade the RAM. I could buy two 1 GB chips to replace both of ...
4
votes
4answers
430 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 ...
3
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3answers
78 views

Frequent BSODs on Windows 7 Professional after replacing Graphics Card (worked fine for ~2 weeks prior)

My computer died around 3 weeks ago due to the Graphics Card failing (Asus Direct CU II 7950, an old 1TB Samsung HDD also failed to power up after this) and just 2 weeks ago we replaced it with a new ...
3
votes
1answer
13k views

Is DDR4 RAM compatible in a DDR3 RAM slot?

I'm looking to get a RAM upgrade for my SONY VAIO VPCEH25FM. If I get DDR4, is it compatible with a DDR3 slot?
3
votes
2answers
988 views

Is “system specific” an important feature for laptop RAM?

I was looking on Newegg for some SO-DIMM DDR3 ram for my laptop and noticed Kingston has a large variety of very similar laptop ram chips with different model numbers, marketed as "System Specific" ...
3
votes
4answers
30k views

Excel ran out of resources while attempting to calculate one or more formulas

I received the error message "Excel ran out of resources while attempting to calculate one or more formulas" on ONE of my computers (Out of 2). My worksheet contains: (Inside a single worksheet, not ...
3
votes
2answers
3k views

How does copying files work with regards to RAM, and can I speed this up?

I have always wondered why my computer would copy files to an external drive at first at high speed, and then 'hang' for a while before continuing. When I upgrade RAM from 1GB to 2GB I noticed this ...
3
votes
2answers
5k views

Does ReadyBoost slow down systems with more RAM?

I have 4 GB of RAM and would like to make use of ReadyBoost to speed up hard drive access, by taking advantage of its hard drive cache method. However, as I understand the technology, ReadyBoost ...
3
votes
6answers
4k views

Screen flicker since new RAM installation

My work PC was upgraded by the tech guys (RAM only) and ever since my screen has been flickering but they do not know why this has happened and have yet to fix it. Does anyone have any ideas as to the ...
3
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6answers
7k views

How to know which RAM I can/should buy for my PC?

I have a relatively old PC (5 years or more) which has only 1GB of RAM. I'm running on Windows 7 and unfortunately it doesn't like being so senile... I have a Gigabyte mother board but I have no ...
3
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2answers
5k views

How to free memory in Mac OS X?

I have Macbook Pro running Mac OS X Leopard (10.5) with 4GB RAM. I use some applications (Parallels for Windows (1GB RAM), Firefox, mail, freemind, iTunes, Finder, Terminal and that's it), and I can ...
3
votes
2answers
6k views

Can I use laptop RAM in a desktop?

The specifications of my system say it supports 400 MHz and 533 MHz DDR2 unbuffered SDRAM. I have a 1 GB DDR2 PC2-5300 laptop RAM module. Can I use this in my desktop? If not, what exactly is the ...
2
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1answer
1k views

Show historic hardware changes in windows 7

Brief question: In Windows 7, Is there a log where I can see the ram memory of the system at different dates? Explanation: A friend of mine have detected some missing hardware (ram sticks) on some ...
2
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1answer
15k views

Window 8 : RAM usage (committed memory) [duplicate]

I have a 4 GB RAM memory. In task manager you can see tha Committed memory is 5,6/7,9 GB RAM. Why that if In use memory is just 3,1 GB ? Is Windows using the Page File ?
2
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1answer
6k views

explorer.exe eating memory like crazy

I have a Windows 7 operating system. When I boot up and do nothing, explorer.exe starts to consume memory like crazy, like around 2GBs and so. When I kill it from task manager, everything is still ...
2
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4answers
2k views

Is it alright to use 2 different DDR2 RAM modules? [duplicate]

I have an old desktop PC which has a P4M900T-M2 motherboard. It currently has one Apacer DDR2-667 memory module but the motherboard can support two DDR2 memory modules. I'm planning to upgrade it to ...