Jump to content


 


Register a free account to unlock additional features at BleepingComputer.com
Welcome to BleepingComputer, a free community where people like yourself come together to discuss and learn how to use their computers. Using the site is easy and fun. As a guest, you can browse and view the various discussions in the forums, but can not create a new topic or reply to an existing one unless you are logged in. Other benefits of registering an account are subscribing to topics and forums, creating a blog, and having no ads shown anywhere on the site.


Click here to Register a free account now! or read our Welcome Guide to learn how to use this site.

Photo

Only 2.5 GB usable of 4 total in windows 7?


  • Please log in to reply
21 replies to this topic

#1 frank11111

frank11111

  • Members
  • 61 posts
  • OFFLINE
  •  
  • Local time:10:56 AM

Posted 11 October 2011 - 03:28 AM

I included a picture of my specs

Under my Windows 7 performance information it is listed that I have 2.5 Gigs of usable RAM even though I have 4 installed. I think this is because I have 1.5 GB of graphics memory but I don't fully understand what that is. I also don't understand the difference between the listed "dedicated graphics memory(512MB)" and the "shared system memory" that I guess make up the 1.5 GB I'm "missing".

I was thinking of installing a 64 bit version of my OS to take full advantage of my installed memory and I think my system is fully capable. I just need to have the right processor and enough memory to make it worth it correct? I assume my motherboard is capable if it is using a capable processor... Is there anything I'm missing?

Attached Files



BC AdBot (Login to Remove)

 


#2 coxchris

coxchris

  • Members
  • 1,151 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Atwater
  • Local time:07:56 AM

Posted 11 October 2011 - 06:12 AM

Limitations of OS


32 bit OS is 2.5GB you can use
64 bit OS is 128GB

Dedicated graphical memory is Preinstalled RAM on the Video Chip it will only use the memory on the chip
Shared video memory is using the system Ram as video memory so if your 2.5GB-512 or 256 video memory it would be 2.5-(video memory value)=System Memory available
any cpu 3-6 ( 8 now) cores can handle 64-bit but that processor can support 64 bit OS but you have to check the CPU if it 64 bit support.


Limitation of OS you can buy Windows 7 x64 bit and you have full access to your ram

AA in Computer Networking Technology

BS in Information Technology 

Comptia A+, Project+, L+

Renewable:  N+,S+

CIW Web Design Specialist, JavaScript Specialist,  Database Design Specialist 

LPIC-1, SUSE 


#3 frank11111

frank11111
  • Topic Starter

  • Members
  • 61 posts
  • OFFLINE
  •  
  • Local time:10:56 AM

Posted 11 October 2011 - 08:44 AM

Sorry but I am having difficulty understanding your reply. I understand the dedicated memory but not the shared. Shared RAM is just my regular RAM being diverted as use as video ram when it is available? if there is 2.5 gigs usable RAM after you subtract 512 Mb from the graphics card and 1 gig shared (which is really just my RAM) then isn't my OS addressing a total of 4 gigs of RAM in the end? I still have a gig and a half that goes to waste unless I upgrade to a 64 bi

If I want to upgrade to a 64 bit OS, is my CPU(aren't all quads 64 bit capable?) the only thing I have to make sure is capable? I heard somewhere that you also have to check to motherboard, is that true?

#4 computerxpds

computerxpds

    Bleepin' Comp


  • Moderator
  • 4,493 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:USA
  • Local time:10:56 AM

Posted 11 October 2011 - 08:50 AM

Simple answer you can install windows 7 64 bit on this system as it stands now. Nothing needs to be changed. Windows as it is now on your system is only able to use 2 gb of ram period that includes shared video ram if I rightly remember. So no you are not using all 4th right now that is impossible because the os cannot access it. When you install 64 bit windows os you will be able to access all 4th of ram.
sigcomp.png 
If I have replied to a topic and you reply and I haven't gotten back to you within 48 hours (2 days) then send me a P.M.
Some important links: BC Forum Rules | Misplaced Malware Logs | BC Tutorials | BC Downloads |
Follow BleepingComputer on: Facebook! | Twitter! | Google+| Come join us on the BleepingComputer Live Chat on Discord too! |

#5 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:56 PM

Posted 11 October 2011 - 09:08 AM

Have a read here:

Memory Limits for Windows Releases you will get a better understanding.

#6 frank11111

frank11111
  • Topic Starter

  • Members
  • 61 posts
  • OFFLINE
  •  
  • Local time:10:56 AM

Posted 11 October 2011 - 09:38 AM

Have a read here:

Memory Limits for Windows Releases you will get a better understanding.




Thank you for the response. The link you posted said 32 bit can support 4 gigs of ram so I'm still a little confused. Are you saying it can only use 2.5 because the shared ram is used only for video and there is 512Mb on the GPU?

#7 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:56 PM

Posted 11 October 2011 - 10:11 AM

It can use and allocate up to 4Gigs, but the devices and other go into consideration. Consider this You currently have 4 Gigs installed, out of that you have 512Megs of Video RAM, that will take it down to 3.5Gigs of Physical RAM, there there other devices like sound cards, network cards, and what not that also need memory. After that the physical memory of the machine is reduced.

#8 frank11111

frank11111
  • Topic Starter

  • Members
  • 61 posts
  • OFFLINE
  •  
  • Local time:10:56 AM

Posted 11 October 2011 - 11:01 AM

But all those other components don't have their own memory (except the graphics card) so they are taking it from the 4 gigs. Over all i'm left with only 2.5 left for other other tasks. so if I install 64 bit OS i'm really only gaining an extra 512 mb that the GPU is currently using. Or in other words my computer will be able to utilize the four gigs(minus what ever is allocated to other components like you said) , plus the 512mb of the GPU

If that is correct, is that small gain worth installing 64 bit OS? it would only cost me about 30 bucks to switch to 7 Pro 64bit with a student discount, but will I notice a difference at all if I use my computer for gaming and general multi tasking. I could also install more ram but I wont be able to for a while anyway..

Thank you for your patience by the way.

Edited by frank11111, 11 October 2011 - 11:06 AM.


#9 Allan

Allan

  • BC Advisor
  • 8,630 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:New Jersey
  • Local time:10:56 AM

Posted 11 October 2011 - 11:21 AM

The problem with a 32 bit OS is how much of the installed ram is reserved for other devices. This blog may be a bit technical in spots, but it should be understandable for most of us:
http://blogs.technet.com/b/markrussinovich/archive/2008/07/21/3092070.aspx

you can scroll down to the relevant area for your question:32-bit Client Effective Memory Limits

#10 frank11111

frank11111
  • Topic Starter

  • Members
  • 61 posts
  • OFFLINE
  •  
  • Local time:10:56 AM

Posted 11 October 2011 - 12:06 PM

So other components of my computer actually have their own memory as well, not just my GPU.

They are not taking from the 4 gig pool. So if I upgrade to a 64 bit I will then utilize all four gigs of RAM, plus the 512Mb from the graphics card, plus whatever amount is installed in other components?

That would be a big jump from 2.5 to 4 and seems well worth it.

#11 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:56 PM

Posted 11 October 2011 - 12:14 PM

I would recommend the 64bit jump not just because of the extra ram it can support, but as time moves on 32bit applications will start to disappear and will run in a 32bit mode under 64bit.

#12 frank11111

frank11111
  • Topic Starter

  • Members
  • 61 posts
  • OFFLINE
  •  
  • Local time:10:56 AM

Posted 11 October 2011 - 12:19 PM

Really I'm more interested in learning more than confirming that I should switch. Am I to assume that you are confirming my last statement about memory usage?

#13 cryptodan

cryptodan

    Bleepin Madman


  • Members
  • 21,868 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:Catonsville, Md
  • Local time:02:56 PM

Posted 11 October 2011 - 12:40 PM

Yes, I am confirming and highly recommend you upgrade to 64bit Windows.

#14 Allan

Allan

  • BC Advisor
  • 8,630 posts
  • OFFLINE
  •  
  • Gender:Male
  • Location:New Jersey
  • Local time:10:56 AM

Posted 11 October 2011 - 12:42 PM

Sorry, but as far as I'm concerned, unless you have a specific need to use a 64 bit OS you should stick with 32 bit.

#15 frank11111

frank11111
  • Topic Starter

  • Members
  • 61 posts
  • OFFLINE
  •  
  • Local time:10:56 AM

Posted 11 October 2011 - 12:57 PM

Sorry, but as far as I'm concerned, unless you have a specific need to use a 64 bit OS you should stick with 32 bit.

I would be upgrading because I have hardware that seems to be going to waste without it and the upgrade will only cost me 30 dollars. Also I use my computer for gaming which always seems to max out my ram on higher end games. I have done some digging and Windows 7 64bit doesn't seem to have the same issues and incompatibility problems that plagued XP for example.

I am definitely open to more advice though if you still think it is not worth it




0 user(s) are reading this topic

0 members, 0 guests, 0 anonymous users