Is there a workaround to use all 4GB of RAM?

bilzmale

bilzmale

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Thought I'd read somewhere that thwere is a tweak to let Win Home Prem 32 bit access all of the installed RAM? Or was I dreaming?
 

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the 3GB boot option allows applications to address more ram, but limits the IO to 1GB.

it does not however, expose any more ram to the system. Windows will see anywhere between 3.0 and 3.75GB's of ram depending on the hardware in the system, as each device requires physical memory due to the 2GB addressing limit under a 32bit OS.
 

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Anywhere from 2.5 to 3.5mb
Mine sees 3764 Mb with 64 bit..
 

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Thats because you have a 64bit OS.... ;)
 

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LENOVO K450 @3.0GHZ
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bilzmale, instead of trying to get things working like that on 32 bit using PAE do yourself a favor and just go 64 bit.

skyli said:
Mine sees 3764 Mb with 64 bit..
Click to expand...

Tews said:
Thats because you have a 64bit OS.... ;)
Click to expand...

And with the missing ~332 MB (odd number) probably allocated to the video chip integrated into the CPU.
 

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Win 7 Ultimate x64
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OK if I add a video card with say 1GB memory will that allow the rest of the system to access more of the 3GB it sees (hopefully giving some speed advantages in progs like Photoshop and Lightroom).
 

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Win 7 Home Premium 64 bitPhenom II X4 955 BE8GB Kingston DDR2 800Sapphire HD5670 1GB.
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Win 7 Home Premium 64 bit
CPU
Phenom II X4 955 BE
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GA-MA785GM-US2H
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8GB Kingston DDR2 800
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Sapphire HD5670 1GB.
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Asus Xonar Essence ST
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Samsung P2350
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1920x1080
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Seagate 1TB
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No. 32 bit OS with 4 GB of ram and a video card with 1 GB of vram on it, will maker it that at best the OS will see and be able to use 3 GB.
 

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Win 7 Ultimate x64FX-8350 @ 4.6 GHz so farADATA XPG V1 Series Black 8GB DDR3 1600Sapphire R9 270x Dual-X
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PC/Desktop
Computer Manufacturer/Model Number
Me
OS
Win 7 Ultimate x64
CPU
FX-8350 @ 4.6 GHz so far
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Asus M5A97 EVO
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ADATA XPG V1 Series Black 8GB DDR3 1600
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Sapphire R9 270x Dual-X
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Xonar DGX w/ Corsair Vengence 1300
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Acer S232HL Abid
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120 GB OCZ Vertex 3
500 GB Seagate 7200.12
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Antec Three Hundred
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Cooler Master 212 EVO
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^correct, in order to map the additional memory on the video card, the system will lose more system memory.
 

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Windows 7Core i7 920 D0Corsair Dominator 1600Geforce GTX 275
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Rampage II Gene
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Corsair Dominator 1600
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Geforce GTX 275
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Auzentech Prelude
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BenQ G2400WD
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1920x1200
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WD AAKS 500GB
WD 1TB
Seagate 160GB
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Corsair HX620
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NZXT Rogue
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TRUE Copper
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Logitech G15
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Anywhere from 2.5 to 3.5mb
Or was I dreaming?
Click to expand...
Yes you are dreaming. The 32bit system can only address 4GB (to be exact it is 4GB minus 1 byte) of address space and any device/function of the system that requires address space has to be mapped into these 4GB. Some of it is explained in this article, but if in addition you have a graphics card with address space requirements, that goes against the 4GB too. In a bad case you can end up with only something between 2 and 3GBs that remain for the OS.
 

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stormy13 said:
No. 32 bit OS with 4 GB of ram and a video card with 1 GB of vram on it, will maker it that at best the OS will see and be able to use 3 GB.
Click to expand...

OK I didn't make myself clear - I was comparing onboard graphics sharing system RAM with a dedicated video card.

Have done some searching and found a few things - I'd be interested in comments.

Memory Reamp in BIOS. I suspect this is a typo and should read "remap".

Patch kernel. A Russian hack.

Create a RAMDisk. A software solution.
 

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Win 7 Home Premium 64 bitPhenom II X4 955 BE8GB Kingston DDR2 800Sapphire HD5670 1GB.
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Mixture
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Win 7 Home Premium 64 bit
CPU
Phenom II X4 955 BE
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GA-MA785GM-US2H
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8GB Kingston DDR2 800
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Sapphire HD5670 1GB.
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Asus Xonar Essence ST
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Samsung P2350
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1920x1080
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Seagate 1TB
Hitachi 1TB

WD 500GB external
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Corsair VX550W
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Cooler Master Silio 500
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Noctua NH-U9B SE2
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Logitech
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Evoluent Vertimouse 3 (wireless)
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ADSL2+
whs said:
Or was I dreaming?
Click to expand...
Yes you are dreaming. The 32bit system can only address 4GB (to be exact it is 4GB minus 1 byte) of address space and any device/function of the system that requires address space has to be mapped into these 4GB. Some of it is explained in this article, but if in addition you have a graphics card with address space requirements, that goes against the 4GB too. In a bad case you can end up with only something between 2 and 3GBs that remain for the OS.
Click to expand...

So what is the usefulness of graphic card memory - is it actual additional memory or just the capability to address installed RAM.
 

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Win 7 Home Premium 64 bitPhenom II X4 955 BE8GB Kingston DDR2 800Sapphire HD5670 1GB.
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Win 7 Home Premium 64 bit
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GA-MA785GM-US2H
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8GB Kingston DDR2 800
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Sapphire HD5670 1GB.
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Samsung P2350
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Seagate 1TB
Hitachi 1TB

WD 500GB external
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Corsair VX550W
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Cooler Master Silio 500
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Noctua NH-U9B SE2
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Logitech
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Evoluent Vertimouse 3 (wireless)
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ADSL2+
Video memory may be used for storing other data as well as the screen image, such as the Z buffer, which manages the depth coordinates in 3D Graphics and compiled shader programs.
 

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I was comparing onboard graphics sharing system RAM with a dedicated video card.
Click to expand...
An on-board graphic shares real RAM. A dedicted graphics card uses address space. The effect on the usable RAM for the OS is the same.
 

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whs said:
The 32bit system can only address 4GB (to be exact it is 4GB minus 1 byte)
Click to expand...

Remember to count zero also. The addressable address space (without PAE) is 0x00000000 to 0xffffffff. 4GB exactly.
 

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PAE. But then again, this:

stormy13 said:
bilzmale, instead of trying to get things working like that on 32 bit using PAE do yourself a favor and just go 64 bit.
Click to expand...
 

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Windows 2000 5.0 Build 2195
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Intel Core i7-2630QM@2GHz(2.9GHz Turbo Boost) [Sandy Bridge]
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It's a Laptop.
I concur.
64bit for high spec machines.
32bit for anything less.
 

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Windows 7 Enterprise
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Intel Pentium Dual E2200 @2.2GHz
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Gigabyte II-G31
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4GB
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Palit GForce 9500GT 1GB
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onBoard
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WesternDigital: 250GB + 1TB + 1TB + 2TB
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Sure, a 64bit is preferable. But is it technically possible (I think the OP was fishing for this) to go beyond 4GB in a 32bit OS? Yes it is.

According to some sources only a small patch it needed to make vista/win7 do just that. Or as mentioned, some ram-disk products can build their home up there.
 

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Its not possible.

simple as that.

theres no patch available. no tweak, no config, no boot switch.
 

My Computer My Computer

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Windows 7Core i7 920 D0Corsair Dominator 1600Geforce GTX 275
OS
Windows 7
CPU
Core i7 920 D0
Motherboard
Rampage II Gene
Memory
Corsair Dominator 1600
Graphics Card(s)
Geforce GTX 275
Sound Card
Auzentech Prelude
Monitor(s) Displays
BenQ G2400WD
Screen Resolution
1920x1200
Hard Drives
WD AAKS 500GB
WD 1TB
Seagate 160GB
PSU
Corsair HX620
Case
NZXT Rogue
Cooling
TRUE Copper
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Logitech G15
Internet Speed
Anywhere from 2.5 to 3.5mb
Not long ago I d/l the "Ultimate Windows Tweaker". There are many different things to check to change up your system. One of them is "Use 4 GB of memory on a 32-bit system". I thought, "I have to try that". Just as I suspected, it doesn't work. I can't even imagine why that was put on there. Anyone had experience with that program?
 

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Windows 7 Home Premium 32-Bit - Build 7600 SP1Intel Core i3-2120 3.30GhzKingston 4 GB DDR3 1333 mhzAMD Radeon HD6670
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Custom Build
OS
Windows 7 Home Premium 32-Bit - Build 7600 SP1
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Intel Core i3-2120 3.30Ghz
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Asus P8Z68-V LX Intel Z68 Socket H2 ATX
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Kingston 4 GB DDR3 1333 mhz
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AMD Radeon HD6670
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Sound Blaster Audigy SE 24-Bit
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Asus VE228
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1440 X 900
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OCZ Vertex 3 120 GB Sata 3 SSD ==
Kingston SH103/S3 120 G Hyper X 120 GB SSD ==
Western Digital 500 GB Caviar Green 7200 RPM ==
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Corsair CX600M == 600 Watt
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Microsoft Natural 4000
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of course not, because what it suggests is impossible for the memory subsystem of a 32bit host operating system.
 

My Computer My Computer

At a glance

Windows 7Core i7 920 D0Corsair Dominator 1600Geforce GTX 275
OS
Windows 7
CPU
Core i7 920 D0
Motherboard
Rampage II Gene
Memory
Corsair Dominator 1600
Graphics Card(s)
Geforce GTX 275
Sound Card
Auzentech Prelude
Monitor(s) Displays
BenQ G2400WD
Screen Resolution
1920x1200
Hard Drives
WD AAKS 500GB
WD 1TB
Seagate 160GB
PSU
Corsair HX620
Case
NZXT Rogue
Cooling
TRUE Copper
Keyboard
Logitech G15
Internet Speed
Anywhere from 2.5 to 3.5mb
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