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

learn more… | top users | synonyms (1)

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 ...
4
votes
3answers
2k views

How does increasing RAM effect laptop battery life on standby?

Just a simple theoretical question: Does increasing the amount of physical RAM on a laptop affect the battery life while in standby? I always thought the only real difference between hibernate and ...
3
votes
3answers
7k views

How do I free virtual memory in Ubuntu?

Current statistics affirm that: 100Mb of RAM are used out of 312Mb and 31Mb of Virtual Mem are used too. Anyway I can stop the OS from using virtual memory instead of RAM? I know that this ...
0
votes
1answer
117 views

Ram compatibility .. DIMM? [closed]

i want to increase RAM ..i will buy 512 ram ..with ddr 400 what more spec i need to match before i buy . like i dont know whats DIMM ..and where to check number of pin the ram has .. My computer ...
0
votes
2answers
78 views

System restarting without warning

I was running Windows 7 and from time to time it shutdown with no reason. I was thinking that it might be my fault, because I was using an x86 OS on a Intel Core Duo system with 4GB RAM. I just ...
3
votes
2answers
266 views

How do I know what type of RAM I have?

I've got an old computer from a friend of mine that does not use it anymore i order to use it like a test server. Now, I'd like to upgrade it, by adding to it some RAM. Wondering about how to know ...
1
vote
1answer
49 views

How large of a file can I open on my Mac?

Not technically a programming question. I want to do video editing with my Mac. I have 2GB of RAM. My helmet camera can store up to 16GB of footage. Can I open a 16GB file and edit it with just 2GB ...
1
vote
2answers
632 views

DDR3 RAM and speeds

I bought some computer parts to build my first system. The mobo was DOA and I RMAed it. They were supposed to send me a replacement but instead just refunded the money on CC. Um, ok, but I still need ...
0
votes
2answers
373 views

Remote Desktop with resource sharing

I recently removed ubuntu from my laptop and installed Windows 7 because Microsoft's DreamSpark program gave me Visual Studio Pro for free and I want to do some C# programming with it. The problem is ...
2
votes
5answers
2k views

Loading large XML files into XML Notepad

While loading a 250 MB XML file in Microsoft's XML Notepad, I get an "OutOfMemoryException". Is there any way to increase the size limit? Is there any other tool that can load large XML files?
7
votes
4answers
2k views

Windows RAM Test Program

I'm recently getting blue screen of death on my Windows XP machine. I suspect that the culprit is the RAM I've just installed. Is there any program that I can use the test whether my RAM is good or ...
2
votes
2answers
946 views

Parameters for selection of Operating system, memory and processor for embedded system?

I am developing an embedded real time system software (in C language). I have designed the s/w architecture - we know various objects required, interactions required between various objects and IPC ...
12
votes
1answer
11k views

Ballooning Mac OS X kernel_task and Wired memory usage. How to diagnose / fix?

I have a very strange issue, which I'm having a hard time diagnosing as to the root cause. I have a Mac Pro (2008, 8-core 2.8 GHz, 8800GT) with 14 GB of RAM (recently upgraded because of this ...
2
votes
5answers
2k views

Linux for 128 MB of memory

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
3answers
430 views

When do you know you need more ram?

My current system is: intel core i5-750 quad core 4gig ram 1600 600gb 7200rpm HDD running on windows 7 When I look at the performance monitor my memory rarely goes above 50% of total memory usage. ...
-1
votes
1answer
1k views

Xorg eating up too much RAM on Ubuntu 9.10 box

Xorg is eating up 444MB of 2GB total RAM on my Ubuntu 9.10 x86_64 machine with nvidia drivers installed for the nvidia G86 (GeForce 8300 GS). top shows: top - 18:21:41 up 6 days, 2:40, 9 users, ...
1
vote
1answer
227 views

Memory upgrade for Toshiba P20 S203?

I've had an offer of a 256MB PC2700 SODIMM, apparently from an iBook, to upgrade a Toshiba laptop. Is that suitable? I've seen "DDR 266 SODIMM" on sale as the official upgrade memory. How in general ...
42
votes
4answers
64k views

Is it better to have four times 2 GB or two times 4 GB of RAM?

I'm building a Core i7-860 system which supports dual-channel memory (up to 16 GB in four DIMMs), my target is 8 GB. From the performance perspective, is it better to have two times ...
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 ...
6
votes
1answer
2k views

whats the difference between ganged and unganged memory on AMD Phenom?

I recently upgraded a machine from an AMD X2 CPU to an AMD Phenom X4 and notice options for toggling ganged vs unganged for the DDR2 memory on that machine. Can someone explain what the difference ...
11
votes
2answers
5k views

Why does RAM need to be installed in pairs?

Why does RAM need to be installed in pairs? What's the reason behind this?
0
votes
1answer
2k views

DDR3 1066 CL7 or 1333 CL9?

My eshop offers either 1066 memory with CL 7 or 1333 with CL9 (those are 4GB DDR3 modules). In this exact case, would you prefer frequency or latency?
2
votes
3answers
5k views

Can I mix DDR2 533 with DDR2 800 ram in the same system?

i have a M2N-E motherboard from ASUS, can I install ram that run at different clock speeds?
3
votes
5answers
624 views

Is it worth upgrading RAM on a Vista/Windows 7 64bit system with 1GB of PC2-4300

How much is enough? with 1GB my system seems quite sluggish, but I don't want to put alot of money into my system. How much ram does windows really need to run smoothly? My system: AMD Athlon 64 ...
1
vote
3answers
2k views

Do I need to upgrade DDR2 Ram in pairs?

I'm running Vista64 on a AMD64 dual core, with only 1GB of ram. Do I need to install DDR2 ram in pairs? My Motherboard: Manufacturer ASUSTeK Computer INC. Model M2N-E SLI Version 1.XX Serial ...
1
vote
6answers
362 views

What's the memory cap for 64-bit systems

You know how on 32-bit systems it can only use like 3gb of RAM? How much is that cap for 64-bit systems?
5
votes
1answer
2k views

How does top calculate the memory figures on Linux?

I'm a bit confused on how the memory figures add up in top. If I've understood correctly, the amount of "really" used memory is total - free - buffers - cached. In the example below that would be ...
0
votes
3answers
271 views

Learning about BIOS memory, instructions and code origins

I'm learning about the BIOS and have a few questions. What is meant by, "This is the last 16 bytes of memory at the end of the first megabyte of memory"? The first instruction of BIOS is jump, which ...
3
votes
2answers
323 views

What's more important with RAM memory: fast timings or higher clockspeeds?

I do a lot of gaming on my machine, and have the option of running PC6400 (800mhz) with 4-4-4-12 timings OR PC8000 (1000mhz) with 5-5-5-15 timings. Which memory configuration will benefit ...
2
votes
1answer
2k views

Does Failed Data Bus Stress Test mean bad RAM stick or motherboard?

I have encountered an error when running a memory test. Does a failed "Data Bus Stress Test" mean a problem with the RAM stick, or with the motherboard/chipset? Or could it be either? (ie: is the ...
1
vote
3answers
913 views

Only getting 4 gigs of 8 gigs installed RAM ddr3 64-bit windows 7

I am running windows 7 64 bit with an EVGA 055 motherboard and an i5 Intel processor; I have 2 4gig DDR3 ram kits installed, and windows only sees 4 gigs. Resource manager is informing me that i ...
2
votes
1answer
81 views

RAM use drops after running MS Virtual PC

I start my computer (Windows XP) and I'm using roughly 35% RAM. This goes up to about 50%++ after I start my daily applications (browser, messenger and such). When I run Virtual PC, the RAM does not ...
3
votes
2answers
2k 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 ...
0
votes
2answers
1k views

Bad Intel DQ965GF motherboard? Fails memtest, but memory is good

I've got a machine with a DQ965GF motherboard. Two days ago it started locking up hard. Ran memtest 3.3, 1.7, and TestMem 4. TestMem just freezes, memtest failed on moving 8 bit inversions. ...
1
vote
2answers
261 views

Over-Upgrading MacBook (Core Duo White) RAM to 4GB

I’m using a Core Duo MacBook White (not core 2 duo) for a while and have it upgraded to the maximum 2 GB of RAM. What happens if I just put two 2GB RAM modules in there? Has anyone experience ...
0
votes
2answers
123 views

Windows 7 recognizing 100% of my RAM some places, not others

Before you go blaming it on a 32-bit OS, I'm running Windows 7 64-bit. I have 4x 1GB sticks of RAM installed. I recently RMA'd one stick and installed the replacement. It would seem that parts of my ...
0
votes
2answers
489 views

Fedora 9 (64bit) won't recognize 8G of RAM

This is really a question about whether or not it is absolutely necessary for me to upgrade my Fedora. I just upgraded my computer with a couple more sticks of RAM and have it up to 8G now. I duel ...
2
votes
5answers
8k views

Does the Dell Inspiron 1501 handle more than 4 Gb of RAM?

After the following comment on my last question, I'm thinking about upgrading my RAM: I got a 160 GB Scorpio Blue a couple months ago for my 1501. It's nice. That + 2 GB Crucial RAM have ...
1
vote
2answers
895 views

What's the maximum RAM a single slot can take in my Sony Vaio?

I have a Sony VAIO laptop (VGN-SZ1HP/B) that unfortunately has only one memory slot working (see my previous problem here), and it's very annoying as I'm limited to 1GB of RAM. According to Crucial, ...
4
votes
2answers
101 views

OS State persistence on power loss?

Is there a way to use persistent memory instead of the volatile ram so that the state is resumed on a power loss without resorting to a UPS? Alternatively, can RAM be battery backed so that you don't ...
2
votes
2answers
117 views

Long Term Storage of a Notebook HardDrive and RAM

I had an old laptop which failed; I've removed the hard drive and RAM and disposed of the laptop (it was kind of old, anyway). While I realize the RAM may only be "useful" for a period of time, the ...
1
vote
3answers
3k views

Max Usable Memory - Windows 7 Pro 64-bit

Specs beforehand (Upgraded HP m8530f): AMD Phenom X4 9550 @ 2.20 GHz / HIS 256MB Radeon HD4350 GDDR2 PCI-E / 6.0 GB PC2-6400 DDR2 RAM / 750GB SATA Seagate Barracuda HDD / ASUS M2N78-LA / CoolerMaster ...
0
votes
2answers
563 views

What's the REAL memory requirements of OSX 10.6?

I'm running a 3 year old Mac Mini with 2G and Snow Leopard. I'm currently finding that after a couple of days, the machine grinds to a halt with thrashing to VM. I'm running a lot of programs, but I ...
2
votes
3answers
2k views

Laptop won't boot with both memory slots used

I'm currently trying to upgrade my old Sony VAIO VGN-SZ1HP/B to 2GB of RAM. It already had 1GB of Crucial RAM in one of its slots, and one empty. I checked on Crucial.com and it confirms that each ...
4
votes
3answers
7k views

Determining the maximum RAM I can upgrade my PC to and what type

Im having a little trouble determining what memory to buy and what the maximum I can upgrade to. I currently have 2GB and wish to upgrade to 3 or 4GB. I know with 32bit Vista I will only achieve max ...
4
votes
5answers
2k views

Task Manager: VM Size smaller than Mem usage?

The windows XP tasks manager can show two different columns regarding the memory usage of the processes. One is called Mem Usage and the other is VM Size (not on by default, you need to activate it) ...
1
vote
1answer
1k views

how to increase RAM allocation for Maya in Mac OSX

Having a bitmap displayed as a blueprint and doing poly modeling gets slow in Maya 2010. Any options to feed it more RAM? Any performance tips?
2
votes
5answers
4k views

Allocating More Than 4 GB Of Memory

I am facing an issue with memory allocation. I have: Host OS: Microsoft Windows XP - Professional x64 Edition - Version 2003 - Service Pack 2. Host Physical Memory: 8 GB Guest OS: Red Hat ...
0
votes
2answers
1k views

System says memory controller not available and doesn't boot?

Recently I have had a MainBoard-problem. I've send my mainboard to service and today I got it back from the company. It is a Foxconn 520a mainboard. Now I have installed my exchanged mainboard. But ...
2
votes
0answers
217 views

Asus P4B SDRAM Upgrade

I have to fix a PC for a friend - and - bought RAM because 256 MB SDRAM PC133 is not enough for WinXP. I bought 2x 512 MB SDRAM PC133. If I insert one stick, it doesn't matter which one, the PC won't ...