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What is the RAM limitation on a 64-bit operation system. Cuz like, 32-bit operating systems only run like 3.2 gbs max.

asked Sep 05 '11 at 02:30

avrgboy's gravatar image

avrgboy
1.6k143154184

32bit is 4GB not 3.2 :P

(Sep 05 '11 at 02:59) Jackster1337 Jackster1337's gravatar image
1

@Jackster1337 with 32Bit you have a max of 3,2Gb on anything. 32Bit's can't go higher than that.

(Sep 05 '11 at 04:27) nitrocrime nitrocrime's gravatar image

Well my 4GB laptop on XP 32bit shows 3.9GB......

(Sep 05 '11 at 04:28) Jackster1337 Jackster1337's gravatar image

But how many of it is usable?

(Sep 05 '11 at 04:29) nitrocrime nitrocrime's gravatar image

All. I run VMs and MineeCraft off it and it is 100%

(Sep 05 '11 at 04:42) Jackster1337 Jackster1337's gravatar image
1

windows 32 bit on average will detect 3328MB memory if you install 4GB

If you can do the kernel mod you can easily use well over 8GB memory on a 32 bit copy of windows. The 32 bit kernel mod allows windows to address up to 64GB memory but it does not go past the 2.5GB limit where a 32 bit app can only address a max of 2.5GB memory, even if you have 64GB installed.

(Sep 05 '11 at 15:14) Razor512 Razor512's gravatar image
1

jackster you only have 3.25 gigs usable at max. it may show you in brackets 3.9, but right next to that is does say 3.25 usable.

(Sep 05 '11 at 16:00) Chuckys Child Chuckys%20Child's gravatar image
showing 5 of 7 show all

Max by 64bit. 16 Exabytes

The operating system is what stops the amount of ram you can use.

Windows 7 = 192GB Windows Server 2008 = 2TB

answered Sep 05 '11 at 02:51

Jackster1337's gravatar image

Jackster1337
8.5k185218303

edited Sep 05 '11 at 03:03

Often the motherboard will limit the amount, even if it didn't, the OS does, Windows 7 Ultimate and Professional can use up to 192 GB, Windows 7 Home Premium can only use up to 16 GB, and Home Basic and Starter limit you to 8...

answered Sep 05 '11 at 11:49

Zane%20Harnish's gravatar image

Zane Harnish
246101220

6

Starter is 32bit only I think...

(Sep 05 '11 at 12:32) Jackster1337 Jackster1337's gravatar image

Starter limits you to 2GB

(Sep 05 '11 at 15:16) Tim Fontana Tim%20Fontana's gravatar image

It is important to understand what 64-bit and 32-bit actually means. When a CPU talks about "64-bit"ness, it's referring to the presense of a 64-bit type. That type might be an integer type (eg. for counting, multiplication, division, etc) or it might be an address type (for pointing to some location in memory).

The Intel Atom 330 is a 64-bit processor that will run Windows 7 64-bit, but only has 32-bit address types. A 64-bit OS is an OS that's capable of making use of that type. Again, it might be an integer type, instead of an address type. There really isn't enough information in the question to provide a good answer.

Whether the number of bits in an address type is a significant factor in determining the maximum amount of addressable memory is correct or not is another question... If 32-bit address types limit addressable RAM to 4GB, then explain how 32-bit types on hard drives are capable of addressing quantities like 1 terabyte... ;)

answered Sep 05 '11 at 14:28

beStoN's gravatar image

beStoN
216239

edited Sep 05 '11 at 14:38

windows 32 bit on average will detect 3328MB memory if you install 4GB

If you can do the kernel mod you can easily use well over 8GB memory on a 32 bit copy of windows. The 32 bit kernel mod allows windows to address up to 64GB memory but it does not go past the 2.5GB limit where a 32 bit app can only address a max of 2.5GB memory, even if you have 64GB installed.

Most 64 bit OS will allow 192GB RAM to be installed but 64 bit can allow for much more memory than that, and applications also don't have the 2.5GB limitation (that is if the application is also 64 bit)

answered Sep 05 '11 at 15:15

Razor512's gravatar image

Razor512
16.5k3683259

A 32 bit processor can only utilize a maximum of 4Gb of RAM. A 64 bit processor can MATHEMATICALLY run 2^64 bytes (around 1 billion Gb). Now, whether your hardware/OS can handle that is another story.

answered Sep 18 '12 at 21:47

darman12's gravatar image

darman12
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Asked: Sep 05 '11 at 02:30

Seen: 10,200 times

Last updated: Sep 18 '12 at 21:47