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

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14
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2answers
14k 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 ...
11
votes
2answers
326 views

Windows says RAM ran out while there is still 4 GB of physical memory available

This System Information is from Process Explorer. There is still physical memory available but the system shows nearly no RAM left. Task Manager also shows that about 74% of total RAM is used. ...
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 ...
12
votes
7answers
30k views

OSX Mavericks using way too much RAM

I recently upgraded my mid-2011 15” MacBook Pro to Mac OS X 10.9 Mavericks. Since then, my computer’s RAM usage spikes to the point of making my computer unusable. Specifically, anywhere between a ...
11
votes
2answers
4k views

Why does the memory usage in “top” not add up?

I have noticed that sometimes when I run top, the memory usage of each process in the process table does not seem to add up to the total. For example, in the dump below, top says that I am using 16 ...
4
votes
1answer
5k views

Who loads the BIOS in RAM during computer bootstrap

When the computer starts up, the code in BIOS is executed first. However, how is the code in BIOS loaded into the RAM for execution ? I have referred to this question - Is BIOS read from the BIOS ...
3
votes
4answers
13k views

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?
0
votes
2answers
9k views

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 ...
25
votes
10answers
28k views

Computer slow after installing 32GB RAM

I'm currently running very large network simulations for my PhD research, for which I need lots of RAM. I have a Core i7 2600K processor with a Gigabyte GA-Z68AP-D3 motherboard, running Windows 7 ...
22
votes
4answers
64k 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? ...
10
votes
2answers
6k views

What are these different kinds of memory usage in Windows 7 task manager?

In Windows 7's task manager, I can select different columns to show. There are a bunch that are related to memory and memory usage, but I'm not sure what it all means. I have a Dutch installation of ...
6
votes
3answers
5k views

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 ...
4
votes
3answers
3k views

“Faster” RAM at lower clock speeds?

I've been kind of interested in the mechanics (er, electronics) of computer systems lately and after a bunch of research and looking at my computer's properties, I've come across something strange. ...
3
votes
2answers
800 views

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 ...
3
votes
2answers
5k views

Upgrading laptop RAM Dell XPS 15 [duplicate]

I bought my Dell XPS 15 L502X laptop almost 18 months ago. It has 4GB RAM and am thinking to upgrade it. Processor: Intel 2nd Generation Core i7 2630QM According to processor specifications, it ...
2
votes
1answer
160 views

How do I find out if I have SATA 2 or SATA 3?

I need to upgrade a Dell Inspiron 5520 mid 12 laptop with a Samsung 850 pro SSD. How do I check whether my laptop with a 3rd gen i7 processor has SATA 2 or SATA 3?
2
votes
3answers
11k views

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 ...
11
votes
5answers
71k views

Windows 7 x64 - How can I test my memory?

People tell me that my computer may have some bad RAM. Is there a way to test it without special equipment?
9
votes
4answers
4k views

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
2k 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?
7
votes
2answers
2k 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 ...
5
votes
1answer
9k 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 ...
5
votes
3answers
4k views

How can I dump the memory of a process in Windows 7?

Are there any tools to dump the running application from memory in Windows 7?
4
votes
5answers
18k 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 ...
3
votes
3answers
305 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 ...
3
votes
2answers
7k 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 ...
3
votes
4answers
23k 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 ...
2
votes
1answer
1k views

Why do Resource Monitor and Task Manager's total RAM usage not even remotely add up to the total Physical Memory usage? [duplicate]

I have noticed this on many different Windows machine, on many different occasions: the RAM usage reported by Task Manager or Resource Monitor often seems to add up to an amount which is significantly ...
2
votes
1answer
3k 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
votes
3answers
1k 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
votes
4answers
275 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
895 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
votes
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?
1
vote
4answers
42k views

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 ...
0
votes
1answer
2k 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 ...
0
votes
1answer
615 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 ...
0
votes
2answers
24k 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 ...
11
votes
5answers
16k views

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 ...
10
votes
5answers
1k 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
5k 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 ...
7
votes
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 ...
7
votes
3answers
17k 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
1answer
7k views

What happen if we reduce the size of hiberfil.sys

I today discovered that we can set the size of the hiberfil.sys using powercfg -H -size 100% command line tool. Ignoring the hard space you will get, what else will change if we set it to powercfg -H ...
6
votes
4answers
420 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.
5
votes
1answer
6k 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
2k 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 ...
4
votes
5answers
2k views

Can I upgrade my laptop CPU

I have Lenovo Ideapad Y510 with dual core 1.6 Ghz processor, 1GB ram, 160GB HDD. I want to upgrade my current cpu with any latest one like i3, i5 or i7 to get more speed but don't know if it is ...
4
votes
1answer
33k views

Can I use 1333 MHz and 1600 MHz RAM together?

I currently have 2x1GG 1333MHz DDR3 strips. I plan to purchase a further 2x4GG 1600Mhz strips. Will I be able to use both sets of RAM in my PC together? Will they both be limited to 1333Mhz? Old ...
4
votes
0answers
715 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 ...
4
votes
5answers
32k 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 ...