2020. 2. 23. 02:45ㆍ카테고리 없음
I've only recently have some spare time to join forums, and I have seen forum posts that say Win XP Pro RAM can have a total of 4GB? I've seen microsoft pages on memory limits, PAE and other related topics, 32-bit vs. 64-bit.Some posts that say you can only increase the RAM to 4 GB if you have a 32-bit, but have also seen that increase can only be done if your computer is 64-bit.I think my computer is a 32-bit, and my Win XP Pro version I thought has a total limit of RAM to 1GB, so is it possible that I can have say, a 2GB, 3GB, or even 4GB RAM?Where can I find the absolute truth in this, I'm so confused with microsoft's pages, and the posts too. 32 bit OS's can see and use up to 4GB RAM.However, this includes all of the memory used by HW andvideo as well. If your video card has memory or uses it(shared) with the system, this counts against your maxRAM, but it does not get displayed as RAM. Same withother devices (both MB devices and add-in cards).I never looked into it too much, but I have read that in XP,having a max of 2 GB RAM is actually faster than having 3GB.Also, I have read that it may be suggested to keep the4GB because the system still uses it (or part of it) but it isnot available for applications useage. I am not sure if Ibeleive this, but you can test it out, is there anyperformance hit if you remove 1GB?
Great responses, thanks to all of you.When I bought this computer HP Pavilion 061, it only had 512MB RAM on it. There are only 2 memory slots inside. I thought the total limit on RAM was 1024.
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So, now, I have 2 512MB 1024MB (1GB) RAM.Computer System Info:OS Name Microsoft Windows XP ProfessionalVersion 5.1.2600 Service Pack 2 Build 2600OS Manufacturer Microsoft Corporation - 32-bit?System Name MYCOMPUTERSystem ManufacturerHP Pavilion 061System Model D7222Z-ABA A550YSystem Type X86-based PCProcessor x86 Family 15 Model 3 Stepping 3 GenuineIntel 2800 MhzProcessor x86 Family 15 Model 3 Stepping 3 GenuineIntel 2800 MhzBIOS Version/DateAmerican Megatrends Inc. 3.22, 3/19/2004SMBIOS Version 2.3Windows DirectoryC:WINDOWSSystem DirectoryC:WINDOWSsystem32Boot Device DeviceHarddiskVolume2Locale United StatesHardware AbstractionLayer Version = '5.1.2600.2180 (xpspsp2rtm.0)'User NameMYCOMPUTERAdministratorTime Zone Pacific Standard TimeTotal Physical Memory1,024.00 MBAvail Physical Memory551.27 MBTotal Virtual Memory2.00 GBAvail Virtual Memory1.96 GBPage File Space 1.65 GBPage File C:pagefile.sysIf I can increase the RAM to 2GB, I would be very happy. But how do I know that my computer will accept 2GB RAM? I don't want to purchase the two 1GB memory modules if my computer won't accept it.Any suggestions?
Trial by error? Very expensive if it doesn't work.
I used google to find the specifications of your system:And I quote from the page:Memory slots: 2 DIMMS512 MB DDR / PC3200 (1 DIMM)Maximum memory: 1 GB (HP tested and recommended), 2 GB (motherboard specified)So their recommendation is 1 GB, but they suggest you can use 2. My recommendation is to buy a name brand like Kingston Value Ram and try it. You should know how to access the BIOS, since this looks like you will have to change the settings in the BIOS somehow so it will see 2 GB - from that wording.James. With XP and even Vista, there are both hardware and software limitations.With a 32 Bit CPU, you have a practical limit of 4GB period. This 4GB includes anywhere from 500MB up to 1GB that must be reserved for system resources such as the PCI bus.So, the functional limit with a 32 Bit CPU is 3GB with either Windows XP or Vista.The published limits you see at Microsoft for different versions of Windows are based on the limits of the OS itself, and do not take into account the hardware limitations.This is not all that different from the 512MB limit for Windows 98 and Me. Except that with XP and Vista, they don't choke when you install more RAM.Also, you have the working limit.
That is, there is a magic amount of RAM where the OS performs at it's optimum. Paradoxically, adding more RAM beyond the range of optimum performance can actually make the OS run slower than when there is less RAM.As to your primary question, the amount of RAM that it is worth installing depends on what your motherboard supports.If you are running a 32 Bit CPU, I would stop at 2GB of RAM.If your motherboard supports dual channel mode, you might want to install 4GB in 2 banks of 1GB modules both in dual channel mode.Chas.