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Geek Culture / Where is my RAM?

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Mr X
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Posted: 21st Aug 2007 08:39
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Hi all.

FOr some time ago I had RAM trouble. I had 512 mb RAM, but shared some with the grafics card, so I only had 448 or something like that. Then I upgraded with an 2048 mb RAM card, so I should get about 2496 mb RAM. But when I sheck the stystem properties page (right click on 'this computer', or what ever it's called in english where you get to the hd's and everything, and press properties) it said to me I 'only' have 2,37 gb RAM. And then, if I check my Everest Home Edition, it said to me I got 2431 mb RAM . Why don't they show the same thing, and where is my missing RAM?

Take care,
Mr X.
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indi
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Location: Earth, Brisbane, Australia
Posted: 21st Aug 2007 08:55
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because its a turd OS that cant even detect the ram used.

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Van B
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Posted: 21st Aug 2007 09:10
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1gb=1024mb?

We're going down... in a spiral to the ground...
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Darth Vader
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Location: Adelaide SA, I am the only DB user here!
Posted: 21st Aug 2007 09:17
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Quote: "because its a turd OS that cant even detect the ram used."

Not fair, but in some ways true!


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Digital Awakening
AGK Developer
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Posted: 21st Aug 2007 12:55
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As Van stated 1 GB is not 1000 MB but 1024 MB. Thus writing in GB will look smaler then writing in MB.

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Mr X
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Posted: 21st Aug 2007 14:38
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I know that. It will write 1 GB if it's 1024 GB. But would it really say 2,37, if I have 2496 GB RAM? I meen, it should display 2,49 or 2,5 or something. Or is some part of it taken by the graphics card (that part won't show up when you look it up in windows xp)?
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Silvester
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Location: Netherlands
Posted: 21st Aug 2007 14:43
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a RAM card does have a capacity,But not all is useable by your PC.Your PC only see's what is useable for it.


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Fallout
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Posted: 21st Aug 2007 14:45
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Quote: "if I have 2496 GB RAM?"




....... uuuuuuber.


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Digital Awakening
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Posted: 21st Aug 2007 15:30
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I ran it through the calculator:

2431 / 1024 = 2.37

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Manic
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Posted: 21st Aug 2007 15:34
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i thought this was more of a problem with 32bit computing than a specific OS problem?

I think you've reached the hardware limits

I don't have a sig, live with it.
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Unlordly
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Posted: 21st Aug 2007 17:04
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The hardware limits for 32 bit computers is 4GB of RAM.
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Mr X
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Posted: 21st Aug 2007 21:21
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Quote: "I ran it through the calculator:

2431 / 1024 = 2.37"


I see. So the computer devides it with 1024 when it should devide with 1000. Why does it do that?

Quote: "The hardware limits for 32 bit computers is 4GB of RAM."


Someone once told me that the maximum RAM limit of windows xp was 4 GB. So in a kind of way it was true, for the 32 bit version of xp. But it was never limited to xp, but to all 32 bit version os.
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empty
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Location: 3 boats down from the candy
Posted: 21st Aug 2007 21:54
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Quote: "I see. So the computer devides it with 1024 when it should devide with 1000. Why does it do that?"

Because

Quote: "1gb=1024mb"




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Digital Awakening
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Posted: 21st Aug 2007 22:54 Edited at: 21st Aug 2007 22:56
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1024 is the closest thing to 1000 in binary (2,4,8,16,32,64,128,256,512,1024,2048...). You bascally can't get a RAM chip containing 1000 bytes so you get one with 1024 bytes and call that 1 kB, and on it goes from there.


Oh and this comes into mind:
"There are only 10 kinds of people in this world. Those who understand binary and those who does not."

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Raven
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Posted: 22nd Aug 2007 01:26
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Quote: "Someone once told me that the maximum RAM limit of windows xp was 4 GB. So in a kind of way it was true, for the 32 bit version of xp. But it was never limited to xp, but to all 32 bit version os. "


Actually the limit in both Vista and XP 32-bit versions is 16GB (same as the 64-bit versions) although technially 32-bit systems should only be capable of 4GB.

There's a reason behind why they sorted it to allow more, but given unless you manually set it up it'll default to 4GB doesn't matter. Especially given while most boards support more through the chipset usually only have 2x Memory slots. Given the largest Memory block you can get is 2GB sticks generally is what limits things unless you get a PCI-Ramboard; that said these are fairly pointless as these don't technically extend your system memory unless your chipset supports them natively. Usually they're loaded as Expanded Memory, and are seperate (which is why 32-bit Windows are capable of larger sets)

I can't wait until processors finally reach 512bit like current GPUs are.

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GatorHex
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Posted: 22nd Aug 2007 02:02 Edited at: 22nd Aug 2007 02:19
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Quote: "I can't wait until processors finally reach 512bit like current GPUs are."


It's here.. 2 x Quad motherboard dubbed V8 (8x64 = 512)

I can here Lee now, "You will need this spec for FPSC XI"

http://www.pcmag.com/article2/0,1895,2080511,00.asp



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empty
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Posted: 22nd Aug 2007 02:21
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Quote: "Someone once told me that the maximum RAM limit of windows xp was 4 GB. So in a kind of way it was true, for the 32 bit version of xp. But it was never limited to xp, but to all 32 bit version os."

That's true, XP the maximum amount of RAM supported by XP is 4GB. There are editions of the Windows Server 2003 that support more than that (via PAE: Physical Address Extension).
Not sure about Vista 32 bit.

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Digital Awakening
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Posted: 22nd Aug 2007 03:03
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It's not like you need more then 4 GB RAM for many things today. Of course a server could benefit from more and perhaps stuff like video and 3D rendering. You probably need a decent CPU to take advantage of all that memory as well.

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Keo C
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Posted: 22nd Aug 2007 06:24
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Quote: "Where is my RAM?"

Probably at the petting zoo where it belongs.

Uhhhhhhh.... I forgot
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Mr X
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Posted: 22nd Aug 2007 09:14 Edited at: 22nd Aug 2007 09:15
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Quote: "It's not like you need more then 4 GB RAM for many things today. Of course a server could benefit from more and perhaps stuff like video and 3D rendering. You probably need a decent CPU to take advantage of all that memory as well."


I have a friend who needed 4 GB. But he worked with graphical stuff and things like that.

Quote: "Probably at the petting zoo where it belongs."


Ok, I'll take a look there.

After visiting the zoo: I couldn't find it. They told me it escaped. Have you any idea where it has gone to?
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Lost in Thought
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Posted: 22nd Aug 2007 12:52
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Maybe a dingo ate your ram.

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David R
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Location: 3.14
Posted: 22nd Aug 2007 13:51 Edited at: 22nd Aug 2007 13:53
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Quote: "because its a turd OS that cant even detect the ram used."


And the turd of a Mac OS user can't count, preventing him from realizing that this is nothing to do with the OS at all.... (and there's nothing actually wrong).

You've really got to stop with the whole "IM A GRUMPY MAC OS USER! GRUMBLE! GRUMBLE!" Fair enough you have an issue with other people using their computers and the OS of their choice, but seeing every thread regarding Windows with a random "bash" from you inside of it is extremely irritating.


09-f9-11-02-9d-74-e3-5b-d8-41-56-c5-63-56-88-c0
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Phaelax
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Posted: 23rd Aug 2007 01:21
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XP might "natively" support only 4GB, but it can be tweaked to support 16GB I believe. 2003 server and XP 64bit should be able to support up to 128GB.


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IanM
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Posted: 23rd Aug 2007 01:41
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Nah, XP can only use between 2.5 and 3.5GB at a time, depending on BIOS, memory mapped devices etc. This is probably why the OP thinks his memory has disappeared.

2003 can use more than 4GB of RAM overall, but individual programs are still limited to 4GB addressable memory because they are 32 bit programs.

In addition, unless your programs have been compiled to use more than 2GB of RAM, and you have set the OS to load at the 3GB point instead of the 2GB point, the programs won't use the extra anyway.

Utility plugins collection and
http://www.matrix1.demon.co.uk for older plug-ins and example code
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Keo C
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Posted: 23rd Aug 2007 02:08
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Quote: "Have you any idea where it has gone to?"

I stole it for cheap lawn care.

Uhhhhhhh.... I forgot
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Jeku
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Posted: 23rd Aug 2007 03:01
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The 4GB limit is because of the hardware architecture of a 32-bit CPU. The bus width is 2^32 = 4GB, so it has nothing to do with the OS. A 64-bit bus would have an astronomical limit. Of course, I haven't studied CPU architecture in years so I could have my facts mixed up.

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Dr Schnitzengruber
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Posted: 24th Aug 2007 21:33
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Quote: "A 64-bit bus would have an astronomical limit."


theres your astronomical limit

2^64=
18,446,744,073,709,551,616 bytes
18,014,398,509,481,984 kilobytes
17,592,186,044,416 megabytes
17,179,869,184 gigabytes
16,777,216 terabytes
16,384 petabytes
16 exabytes

then again, I don't think that much memory exists on earth. It's far over the inforamtion of:

a text file with all the words ever written
a sound file with all human speech for a person
DNA information for around 16 millon people

From the office of... Dr. Schnitzengruber
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