anyone running 4GB RAM with 32bit Win7? tia! If so, what mobo and what ram? Overclock? THANKS!!!!!!!

Gigabyte GA EP45-UD3PCorsair Dominator TWIN2X4096-8500C5DNo over clockBecause of 32 bit limitations, of course, only 3.25GB usable.

I am, on a Dell Precision 370. CPU Intel(R) Pentium(R) 4 CPU 3.40GHz Cpu Socket Socket 775 LGA 4 1GB sticks of DDR2 PC2-5300 Single bit ECC System reports 4GB, 3GB usable No overclocking No problems so far, RC1 build 7100. I plan to move to Win 7 Pro 64 bit as soon as it's available.

Gigabyte GA EP45-UD3P Corsair Dominator TWIN2X4096-8500C5D No over clock Because of 32 bit limitations, of course, only 3.25GB usable. yes, only part is actually useable but every time I tried it I would get problems with roboform, firefox, and, yes, some bsod's. I was thinking of trying some gskill instead of the OCZ to see if that would make a difference, and really wishing I could go with 4gb. I do try to OC wo 1150, or at least 1066, but at the moment I think it's running 800 - the bios rebooted a few times and I just left it there. Currently running 2x1gb ocz reaper 1150 . With my old DFI blood iron P35 board I could easily run it there, but not with this UD3P.

I am, on a Dell Precision 370. CPU Intel(R) Pentium(R) 4 CPU 3.40GHz Cpu Socket Socket 775 LGA 4 1GB sticks of DDR2 PC2-5300 Single bit ECC System reports 4GB, 3GB usable No overclocking No problems so far, RC1 build 7100. I plan to move to Win 7 Pro 64 bit as soon as it's available. thanks for your time. I don't think there is any prob with 64bit. I would go there but I would lose my HDTV and blu-ray software.

Hi, The issueis caused by Physical Memory space. It occurs on all 32 bit systems. On any 32-bit Operating System (not only Windows), we only have access to 4GB of physical address space by default. Hardware needs to allocate physical memory space to use for things like the PCI bus, BIOS, the video card and others. It allocates this from the address space presented to it, which is not necessarily the same as the amount of physical RAM installed. When you have 4GB of RAM installed, the amount of physical memory installed is the same as the address space. If you have 4GB RAM, and the hardware needs to allocate a large chunk of memory for its own use, and it does this from top to bottom, the memory that is blocked off starts at 4GB and allocates downwards. So, the final amount of RAM the OS will be able to see is the difference.For detailed instruction please refer this article.

Hi,The issueis caused by Physical Memory space. It occurs on all 32 bit systems.On any 32-bit Operating System (not only Windows), we only have access to 4GB of physical address space by default. Hardware needs to allocate physical memory space to use for things like the PCI bus, BIOS, the video card and others. It allocates this from the address space presented to it, which is not necessarily the same as the amount of physical RAM installed. When you have 4GB of RAM installed, the amount of physical memory installed is the same as the address space. If you have 4GB RAM, and the hardware needs to allocate a large chunk of memory for its own use, and it does this from top to bottom, the memory that is blocked off starts at 4GB and allocates downwards. So, the final amount of RAM the OS will be able to see is the difference.For detailed instruction please refer this article. Hi Sharon (MSFT). Maybe you can help me understand this better: Physical Address Extension (PAE) (build date 9/17/2009). This article specifically mentions 32-bit Win7. It explainsthat while any particular program would stillbe limited to 2GB user space, collectively the entire system memory can actually be utilized."Windows automatically enables PAE if DEP [Data Execution Prevention] is enabled on a computer that supports hardware-enabled DEP... When neither 4GT nor AWE are being used, the amount of physical memory that a single 32-bit process can use is limited by the size of its address space (2 GB). In this case, a PAE-enabled system can still make use of more than 4 GB of RAM to run multiple processes at the same time or to cache file data in memory."As you can see, PAE is already enabled on any modern computer with a 64-bit capable cpu. So whatever issues there once were with PAE and device-drivers, they are already solved. You can also expect the memory that is subject to PAE will be automatically remapped via BIOS, since the computer is designed to support 64-bit Windows. So the question is, when thatcomputer contains 4GB of dram and is running 32-bit Windows, is all of thatdram actually being used? Or if not, whynot?This MSDN article suggests the entire 4GB memory isaccessible, even if the 32-bit O/S license restrictsaccess to no more than that.

Hi, The issueis caused by Physical Memory space. It occurs on all 32 bit systems. On any 32-bit Operating System (not only Windows), we only have access to 4GB of physical address space by default. H ardware needs to allocate physical memory space to use for things like the PCI bus, BIOS, the video card and others. It allocates this from the address space presented to it, which is not necessarily the same as the amount of physical RAM installed. When you have 4GB of RAM installed, the amount of physical memory installed is the same as the address space. If you have 4GB RAM, and the hardware needs to allocate a large chunk of memory for its own use, and it does this from top to bottom, the memory that is blocked off starts at 4GB and allocates downwards. So, the final amount of RAM the OS will be able to see is the difference. For detailed instruction please refer this article . Thanks but this is OT - question concerns whether Win7 will run successfully on 4GB as I have had a lot of problems with it "yes, only part is actually useable but every time I tried it I would get problems with roboform, firefox, and, yes, some bsod's." For me, anyway, it is a known limit of 32 bit that it will only use part of the 4gb, and basically to avoid a complete re-design of all drivers... But my question, here, is whether it will work at all. Apparently, for some, it does, though 2 out of this whold group is a teeny sample. Thanks again.

Hi KrisM77 For me, anyway, it is a known limit of 32 bit that it will only use part of the 4gb, and basically to avoid a complete re-design of all drivers...But my question, here, is whether it will work at all. Apparently, for some, it does, though 2 out of this whold group is a teeny sample. It will work. I have 3 Dell clone systems here, that I use for testing,allrunning Windows 7 32-Bit and they all have 4GB of RAM installed. They all work great.Dell Dimension 8250, Dell Dimension 9150, and Inspiron 526.There are varying amounts of 'Availabe RAM' on these systems 2.75GB, 3.1GB, and3.5GB because of the hardware differences.Just a comment about overclocking, anytime you decide to overclock any component, CPU, RAM, Graphics, etc, you are taking a chance on causing problems with any installed OS/hardware/software. The usual scenario when overclocking is that you start out with small increases and keep going higher and higher untilthings startbreaking. I have never found the results to be worth the potential problems that it can cause.Hope this helps.Thank You for using Windows 7 Ronnie Vernon MVP

Thanks much Ronnie for that info! Yes, OCing is dicey, but I've done it for years and I think I was sleepwalking with my old DFI P35 BI mobo. My UD3P seems much more sensitive. I'll do some more playing with it, at non-OC speeds and see what happens... Thanks again!

Well, this is going to start to slide OT wrt Win7 itself, but I continue to learn something new all the time. I was reading over on Gskill (memory folks) forums about my board and one admin was saying that on this board slots 2,4 work better than the usual 1,3. So I plugged my OCZ 2x2gb into 2 and 4 and it runs easily at 1066 (it should - it's rated to something like 1150, but I was having probs before). So then I got brave and wiggled the cpu up from 333 to 400 (2.8ghz or so). solid as a rock. Yes, at some point I'll try to up the memory speed, and up the cpu speed more, but I have learned that Win7 is slid as a rock, given the right application of BIOS to hardware when OCing. System shows 3.25 available on my particular box. (my box is home brew) Rather spritely, now! UD3P, Q8200, 2x2GB, HDTV, blu-ray, etc... Thanks again, Ronnie, and all - it gave me the encouragement to try again, with new info, and voila!

Hi KrisM77I'm very glad you were able to work this out and end up with a positive result. :)Have fun.Thank You for using Windows 7 Ronnie Vernon MVP