8.00 gigs 3.95 usable

Well i finally got to build the computer of my dreams and everything boots perfectly, but in the bios it only registers 4080MB ram, and in the computer properties it show 8.00(3.95 usable) i have no clue why
my specs:
AMD FX 8150 @4.1ghz on corsair H80
asus sabertooth 990FX
8 gigs (4g x2) G. Skill ares 1866mhz
Zotac GTX 670
Seagate 1tb HDD
1000watt rosewill PSU
asus wireless adapter
please help, i run alot of multitasking and 4gbs is messing me up, i bought 8 for a reason
39 answers Last reply
More about gigs usable
  1. oh, and win7 64bit
  2. check the bios rev in the bios and see if it old. there been a few bios updates for the mb for cpu code and ram.
  3. oh, i havent updated the bios on my MB yet, im guessing thats more than likely the problem?
  4. Hi there,

    Can u check and post this pis? Or if u have Hardware Reserve Memory?

  5. Should be like this.

  6. i have 4151mb reserved
  7. OK, shut down the PC, unplug the PSU and remove all RAM and place it back in different slots and make sure its sitting well.

    Start and check if it changed.
  8. I don't think a single video card would map 4GB of the memory. I would check to make sure the second module is securely installed and update that BIOS if needed like smorizio suggested. There's also a chance a BIOS option needs to be changed, but I'm not familiar with that particular motherboard and BIOS.
  9. ive done that, i had them in the wrong 2 slots at first then changed them to the correct ones still same problem
  10. jprahman said:
    I don't think a single video card would map 4GB of the memory. I would check to make sure the second module is securely installed and update that BIOS if needed like smorizio suggested. There's also a chance a BIOS option needs to be changed, but I'm not familiar with that particular motherboard and BIOS.

    That is just an ilustrated pic I grabbed on google : )

    Never mind the video drawing.
  11. OK, did u add them for the very first time all 4, or just a 2 of them?

    Never mind this.
  12. OK, i would start with BIOS.
    Can u reset the BIOS?
    Reset the CMOS memory the right way as is described in the motherboard manual using the clear CMOS link with the power cord unplugged.
    How To Clear CMOS @ http://pcsupport.about.com/od/fixtheproblem/tp/clearcmos.htm
  13. i only have 2 sticks they are in the A2 and B2 dimm slots
  14. chase66 said:
    i only have 2 sticks they are in the A2 and B2 dimm slots

    Right, I noticed that minute ago.
  15. But reset the BIOS ^.
  16. okay, reset to defaults
  17. hmm do i need to clear it or just reset to defaults
  18. With the battery out.
  19. i dont have a battery im guessing the jumpers?
  20. Just like on the video.

  21. oh, i guess i didnt look good enough, i just used the jumper
    the gpu is like hovering on it so i had to really look to see it
  22. Did u install any video driver? Sometimes re-install helps too.

    Also, try enabling Memory Remaping in BIOS, or something like this, if you manage to find it in your BIOS SETUP.
  23. remapping is enabled i got my video driver when i built it, ill check again
  24. Something may have not installed proper, and is reserving the RAM.

    Can u unplug all HW u can and restart.
  25. still up to date
  26. unplug all hardware and reinstall? including cpu?
  27. i would think its a ram not installed right because its reserving 4gb and its 4gb ram stick
  28. This happened to me once, the problem turned out to be one of the RAM slots was bad. Try using A1 and B1. Also try just one stick of RAM (check both sticks) to see if the RAM is bad.
  29. No, not the CPU.

    But try to boot with 1 stick only.

    And try different video driver version. The latest doesn't mean its the best fit.

    Especially video drivers.
  30. BTW, u don't have installed ramdisk, do u?
  31. Try this and make sure the max memory is unchecked!

  32. well, i kinda messed up, i should have seen it at first, i have 2 sticks and they both show up in bios and cpu id and all that. i decided to take out the stick in B2 it booted with one in A2. i took out the one in A2 and B2 and put the one from B2 into A2, booted up and i got the annoying motherboard speaker telling me of a hardware failure i guess the 2nd stick is bad. i hope i can rma one stick so i dont have to wait a week to get a new one
  33. chase66 said:
    well, i kinda messed up, i should have seen it at first, i have 2 sticks and they both show up in bios and cpu id and all that. i decided to take out the stick in B2 it booted with one in A2. i took out the one in A2 and B2 and put the one from B2 into A2, booted up and i got the annoying motherboard speaker telling me of a hardware failure i guess the 2nd stick is bad. i hope i can rma one stick so i dont have to wait a week to get a new one


    Yeah it happens. Unfortunately if you bought a Dual Channel Kit they want you to send both back. It will take a while (about 2 weeks). You might want to just pick up a cheap single stick so you have a computer to use. Also check the bad stick in all of the slots to make sure it's not the slot.
  34. chase66 said:
    well, i kinda messed up, i should have seen it at first, i have 2 sticks and they both show up in bios and cpu id and all that. i decided to take out the stick in B2 it booted with one in A2. i took out the one in A2 and B2 and put the one from B2 into A2, booted up and i got the annoying motherboard speaker telling me of a hardware failure i guess the 2nd stick is bad. i hope i can rma one stick so i dont have to wait a week to get a new one

    If u got them in the kit, they will need them back both.
  35. Quantity*:1/2 (Please indicate 1/2 or 1/3 if you are not returning a completed kit)

    i guess i lucked out
  36. and thank you for the help, i appreciate it
  37. No problem : ) Good luck!
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