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Windows 7 64-bit : 8GB (3.21 usable)

Hi,
I hope somebody can help me with this.
My OS recognize all the ram but tells me that just 3.21GB usable.

Here my config :
Windows 7 - 64-bit
Intel(R) Xeon(R) CPU E3-1245 V2 @ 3.40GHz - INTEL LINK
H61M-E33/W8 MSI LINK
BIOS version : 18.4

I didn't find a place in the BIOS to extend memory.

Thank for all the replies!

Full CPU-Z info

HERE, RAM INFO IN CPUZ

Quote:
DIMM # 1
SMBus address 0x50
Memory type DDR3
Module format UDIMM
Manufacturer (ID) Corsair (7F7F9E0000000000)
Size 4096 MBytes
Max bandwidth PC3-10700H (667 MHz)
Part number CMX4GX3M1A1333C9
Serial number 8F274406
Manufacturing date Week 25/Year 10
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 6.0-6-6-16-23 @ 444 MHz
JEDEC #2 8.0-8-8-22-30 @ 592 MHz
JEDEC #3 9.0-9-9-24-34 @ 666 MHz

DIMM # 2
SMBus address 0x52
Memory type DDR3
Module format UDIMM
Manufacturer (ID) Corsair (7F7F9E0000000000)
Size 4096 MBytes
Max bandwidth PC3-10700H (667 MHz)
Part number CMX4GX3M1A1333C9
Manufacturing date Week 25/Year 10
Number of banks 8
Nominal Voltage 1.50 Volts
EPP no
XMP no
AMP no
JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
JEDEC #1 6.0-6-6-16-23 @ 444 MHz
JEDEC #2 8.0-8-8-22-30 @ 592 MHz
JEDEC #3 9.0-9-9-24-34 @ 666 MHz
10 answers Last reply Best Answer
More about windows bit 8gb usable
  1. make sure your bios doesnt limit the available ram, and also make sure it isnt reserving like 4gb for itself. also, what graphics card do you have?
  2. Danbuscus25 said:
    make sure your bios doesnt limit the available ram, and also make sure it isnt reserving like 4gb for itself. also, what graphics card do you have?


    Intel® HD Graphics P4000, intel cpu integrated graphic

    BIOS seems very limited, this manual had all BIOS setting in my motherboard if you want to check by yourself.
  3. That will sort of explain it.

    When you add more ram with an on board graphics solution such as an Intel 4000.
    With windows 8 it dynamically adjusts the amount of ram given for the sole use of the 4000 for Graphics.

    To prevent this there should be an option in the bios where you can set the maximum amount of system ram the Intel HD 4000 graphics chip can use from the system memory or the 8gb you have in the system.

    It will be in the graphics section of the bios.
    Or advanced sub menu of the bios.
  4. Make sure you have the 64bit version of Windows 7 installed. ~3.25GB is the typical max usable RAM for 32bit.
  5. yeah, go to control panel, system and security, system, and there it should say either 64 bit or 32 bit.
  6. CPU-Z version : 1.68.0.x64
    Windows Version : Microsoft Windows 7 (6.1) 64-bit Service Pack 1 (Build 7601)

    Full CPU-Z info

    Tommorow, I will check in the BIOS for memory allowed to IGP and resource monitor...
  7. Go into the resource monitor and click on the memory tab to see how it's being used.
  8. cpu-z says you have 8gb ram, and cpu-z is super trust-worthy.
  9. Best answer
    Hi, I found my problem this morning.

    I changed the CPU last week from Pentium G540 to Xeon 1245.
    I found in Task Manager that it show to me just 2 cpu threads, same as CPUZ.
    I went to msconfig and # of cpu and memory was selected. So, I deselected them, reboot the system and voila, everything was there. 7.70GB and 8 threads.

    SR-71 Blackbird : for your record. 4.9GB was reserved to system.
  10. yay! glad you got it fixed :)
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