Total Physical Memory incorrect

By Tcal ยท 11 replies
Mar 24, 2006
  1. In XP, Total Physical Memory shows incorrectly in System Information. However, the amount shown in "System" from Control Panel does show correctly @256MB, but the amount from Sys Info from Accessories/System Tools/System Information does not, and shows 192MB, i.e. at exactly 75% of actual total memory on board.

    I have 2x128MB with a 3rd slot empty. The modules have been removed and reseated, just to check that, but nothing changed.

    General info: I'm running an Athlon 750 on an Asus motherboard. I just changed the HDD and went from 98SE to XP on it. The HDD is from another computer which ran on P4 system. It is partitioned x3. I reformatted only "C" where XP was installed clean. I actually do not know if this Total Phys Memory problem existed on the computer before I upgraded, as I hadn't checked it for a long time.

    Is this familiar territory? I'm lost here and don't know why this would show up in this way.
  2. howard_hopkinso

    howard_hopkinso TS Rookie Posts: 24,177   +19

    Hello and welcome to Techspot.

    Do you have onboard 64MB shared graphics?

    If you do that is where the memory is going.

    Regards Howard :wave: :wave:
  3. Tcal

    Tcal TS Rookie Topic Starter

    Thanks, Howard, for the input. I don't think I have shared graphics, but not certain. I posted a profile of the system before answering this post where you can see other info if you want. The system was built with an ATI Expert 128 16MB Vid Card. Since I pulled the old HDD when I loaded XP it might have reset things -- but I didn't think this Asus board had graphics -- not sure though.
  4. howard_hopkinso

    howard_hopkinso TS Rookie Posts: 24,177   +19

    I`ve just checked and you`re right. No onboard graphics.

    I`m afraid I don`t know what else would cause your problem.

    Maybe it`s just a Windows glitch.

    If you right click my computer and select properties, how much ram does it say you have there?

    Regards Howard :)
  5. Tcal

    Tcal TS Rookie Topic Starter

    It says I have 256MB from My Computer/Properties. It says that everywhere -- except from System Information, where it says the Total Physical Mem is 192MB.
  6. howard_hopkinso

    howard_hopkinso TS Rookie Posts: 24,177   +19

    Strange eh?

    I really don`t know why that would be.

    Regards Howard :)
  7. Tcal

    Tcal TS Rookie Topic Starter

    I also just noticed that the Available Physical Memory is only about 98MB. I'm not using that computer here and now and it isn't running any programs. That's a pretty small number out of 256, or even 192, isn't it?

    Do you suppose that having pulled the HDD from a P4 system, leaving the old Recovery and Backup Partitions for that other computer on the HDD, would somehow have something to do with it now that it's on an Athlon Motherboard? I loaded the XP on this machine with the C partition wiped clean, but... ??

    I guess I could switch the 2 modules of memory and see what happens. In a board with 3 mem slots, do they read sequentially, i.e., could I skip over the middle one and go to the 2 outside sockets, or do they have to be read in order?

  8. Mictlantecuhtli

    Mictlantecuhtli TS Evangelist Posts: 4,345   +11

    That's normal. The memory is there to be used, isn't it?


    Usually it's recommended to fill the memory slots in order, I guess the reason is that some chipsets have problems with empty slots between the modules.
  9. Tedster

    Tedster Techspot old timer..... Posts: 6,002   +15

    you need more memory... 256MB is tiny....
  10. Tcal

    Tcal TS Rookie Topic Starter

  11. Tcal

    Tcal TS Rookie Topic Starter

    You're right about that -- but I'm trying to find out what is going on here first. If the computer is actually only using 192 of 256 on board now, adding more may be adding nothing. I may have to dig up a single 256 module and see if it "sees" all of that in a single slot. Didn't think of that in my head scratchings yesterday.
  12. Tedster

    Tedster Techspot old timer..... Posts: 6,002   +15

    if you have integrated graphics, you're not going to "see" the memory your video is using.
    All the more reason to get more memory.
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