+ 0 Votes All new systems are 64 Bit capable OH Smeg 4 years ago You can install whatever you like and you could even conceivably use a 8 or 16 Bit OS to run the hardware on. So yes you can install a 32 Bit OS on 64 Bit Hardware. Unlike M$ products the Hardware is actually backward compatible. As for finding out what is actually possible to load you need to look at the Chip Set for the M'Board and the Fitted CPU Specifications to see what it is capable of running but ever since AMD Brought out the Athlons about 6 years ago all of their CPU where 64 Bit and Intel followed shortly afterwards. Col + 0 Votes So we need Healer 4 years ago to look at the chip set and the CPU. Where do I get this bit of information to be sure? We get the info from the chip set and the CPU, then go to the Intel or AMD web site. What item of the spec do we look at?For example I look at the Intel Core 2 Duo E5200 spec on http://processorfinder.intel.com/details.aspx?sSpec=SLAY7. Nowhere can I find whether it is 32-bit or 64-bit? + 0 Votes On the Intel Web Site that you listed OH Smeg 4 years ago What do you think that this means?Intel? EM64TYes it means that it is actually a 64 Bit Processor that is capable of using older OS if required. It also means that it can address more than the 4 GIG Upper Limit that is imposed by 32 Bit OS's of all kinds.So if the M'Board can be loaded with more than 4 GIG of RAM it supports 64 Bit Processing and if the CPU has something like EM64T for Intel or AMD64 Technology for AMD that CPU is capable of running 64 Bit Processes. Col + 0 Votes What about the motherboard and chipsets? Healer 4 years ago Apology! I was blind. I thank you for your help.According to their Legal Disclaimers at the bottom of the page, apart from the operating system, device drivers and applications enabled for Intel EM64T the processor will not operate including 32-bit operation without an Intel EM64T-enabled BIOS so I presume I must have such BIOS though I have only 32-bit operating systems installed. I have had a quick look at the BIOS I couldn't see anything that would indicate it is 64-bit capable.What about the chipset? Since I have a 64-bit processor, does it mean I must have the right chipset for 64-bit as well? Or it could still be a chipset for 32-bit? I just want to make sure that my computer is capable of 64-bit before I get a 64-bit operating system.The motherboard I have with this processor is MSI G31M3 V2. According to the manual it has chipset North Bridge Intel G31 and South Bridge Intel ICH7, memory support up to 4GB Max. I look at the info on Intel G31 http://www.intel.com/Products/Desktop/Chipsets/G31/G31-overview.htm I can't tell if it supports 64-bit.Though the motherboard supports only 4GB max it still can be 64-bit capable, can't it? + 0 Votes Well if that Chip Set Supports that CPU OH Smeg 4 years ago It has what is required to work with either a 32 or 64 Bit OS. With Intel Chip Sets it's easy as they only make suitable Chip Sets for their CPU's. AMD on the other hand has only started making M'Board Chip Sets recently so some of the Chip Sets available may not make the best use of that CPU but even there it will support whatever OS you want to install onto that Hardware. If the M'Board supports that CPU it has the correct BIOS Type for that CPU end of story.You are making things difficult that simply are not. If the M'Board supports that CPU it supports it in all ways that it was designed to work so in the relatively small scope of which OS can be run you can use either type a 32 Bit or a 64 Bit.What you are looking at came from the very early days of the 64 Bit CPU's some M'Boards would support a 64 Bit CPU but not a 64 Bit OS. This has long since passed as all new hardware supports 64 Bit Computing and has done for at least 6 years now. In the event of the Dual Core Intel CPU that you listed somewhere above that is 64 Bit Capable and will run a 64 Bit OS perfectly.The only real problem with not using a 64 Bit OS is that until Windows 7 64 Bit became available there where still driver issues with some 64 Bit Drivers for some Hardware. Meaning that these drivers simply didn't exist their maker only made 32 Bit Drivers available for them. Typically things like Printers, Scanner and Web Cams fall into this category but XP Pro 64 was a nightmare to attempt to get running unless you specifically selected Hardware to run a 64 Bit OS and software. You actually needed hardware with 64 Bit Drivers which a lot of the makers didn't support.Since I have a 64-bit processor, does it mean I must have the right chipset for 64-bit as well? Or it could still be a chipset for 32-bit? I just want to make sure that my computer is capable of 64-bit before I get a 64-bit operating system.With a Intel CPU and a Intel M'Board Chip Set M'Board it means that you can run a 64 Bit OS without too many problems though here it depends on what OS you want to install XP Pro 64 may still have some issues with no drivers being made. Otherwise there are no problems. Col + 0 Votes Windows server SBS 2008 Healer 4 years ago I appreciate your patience and tolerance with me. I don't mean to make things difficult for you as I intend to add 2Gs of RAM in my system (2G only at present) so that I can install for testing Windows server SBS 2008 which only works on 64-bits with 4G RAMs minimum. Just want to make sure I spend what is necessary and what is right.I am not quite sure if I follow exactly what you meant by "somewhere above that" in "In the event of the Dual Core Intel CPU that you listed somewhere above that is 64 Bit Capable and will run a 64 Bit OS perfectly." Which processors are you referring to? I hope the one I have at present is as good as the one your are alluding to.I am only using 64bit to a minimum for testing at this stage which mean if I only have to as I share the same concerns about the driver issues. + 0 Votes The Intel CPU that you provided a link to above OH Smeg 4 years ago In this question is 64 Bit capable. I'm just not sure where that link is off the top of my head but it is 64 Bit Capable. All current Dual Core Intel and above CPU's meaning the Dual/Quad Cores, i3, i5 and i7 as well are 64 Bit capable and will run any 64 Bit OS you care to load. As 2008 Server only comes in 64 Bit there shouldn't be any issues with drivers but being a server application you have to realize that it doesn't have as wide a range of drivers available as a desktop system does. Server platforms are not expected to be used with the hardware that is made for a Desktop.So some things like Scanners, some high end sound cards maybe some little known Video cards and the like may =not have 64 Bit Drivers. However if you stick to the more common hardware you shouldn't have a problem unless you attempt to use an older not networkable Printer as that is unlikely to have 2008 Drivers.Col + 0 Votes for Intel machines .Martin. 4 years ago anything after the Pentium 4 are 64-bit compatibles, and as said by OH, since the Athlon, all AMD have been 64-bit compatible.and yes you can install a 32-bit OS on a 64-bit processor, it just won't work as well. + 0 Votes What hardware spec do we look at? Healer 4 years ago New systems since when are 64-bit capable? Are you saying all Intel systems made up since about 6 years ago as long as they are post-Pentium 4 are 64-bit capable?Without opening the case can we usually tell from the BIOS if the systems are 64-bit capable? If we can't tell for sure from the BIOS, do we only go by the processor alone? Which parts of the processor spec should we look at to determine which is which? + 0 Votes There ya go.. So he's ID'ing many systems.. cmatthews 4 years ago Throw on a monitor, kbd and boot from UBCD.http://www.ultimatebootcd.com/Run an info utility and compare to a list of known processor numbers.Here's the one from intel:http://ark.intel.com/VTList.aspx + 0 Votes Processors virtualization capable are 64bit capable? Healer 4 years ago Thanks for your help!I am downloading the ultimate boot cd. This seems like a very useful tool. By the way, I am not too sure what you meant by "Throw on a monitor, kbd ...". Did you simply mean having a computer monitor and a keyboard, not the multimedia software kbd.exe?I believe the list from Intel sets out all the processors that have virtualization technology. Are you suggesting processors that have virtualization technology are also 64-bit capable and vice versa? + 0 Votes Any CPU that supports Vitalization is a 64 Bit CPU. OH Smeg 4 years ago Intel; has not made a 32 Bit only CPU for quite a few years now. Just because the Computer runs a 32 Bit OS doesn't mean that the hardware only supports that. It just means that the 64 Bit OS has not been found to be useful or even in some cases made by the software maker.In the case of Windows they have had a 64 Bit Version of XP Pro which was not considered usable by many. There was a 64 Bit version of Vista and is a usable 64 Bit version of 7 that will run on this hardware.Both Intel and AMD where working on 128 Bit Processors and Chip Sets 5 years ago but may not have pushed ahead with development owing tot he fact that the main Software developer has proved incapable of moving to new hardware fast any more. Microsoft has become big and cumbersome and now appears incapable of pushing out new software quickly enough to make the best use of the currently available hardware. Hence they have just released a workable 64 Bit Desktop system but have yet to release any 64 Bit Applications to run on that software. Server 2008 is slightly different owing to the limitations that are imposed by a 32 Bit platform so things like Exchange had to be moved to 64 Bit to get the number and size of Mailboxes that are required for instance.But all the application software like Office and so on is still 32 Bit. Col + 0 Votes for Intel machines .Martin. 4 years ago anything after the Pentium 4 are 64-bit compatibles, and as said by OH, since the Athlon, all AMD have been 64-bit compatible.and yes you can install a 32-bit OS on a 64-bit processor, it just won't work as well.