Memory

Discussion in 'Windows 7 Help and Support' started by mrpc999, Oct 25, 2009.

  1. mrpc999

    mrpc999 New Member

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    I just installed Windows 7 64 bit on a high spec computer which has 6GB of RAM installed. System under control panel says 6GB but only 3.25GB usable. How can I make the full amount usable? Many thanks for any advice.
     
  2. gavin19

    gavin19 New Member

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    Where does it actually say that only 3.25GB is usable? When I go to System I see -

    [​IMG]
     
  3. mrpc999

    mrpc999 New Member

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    It looks similar to yours (though different details) but says this -

    Installed memory (RAM): 6.00GB (3.25 GB usable)

    I guess the usable part only appears if part of the memory is not usable.
     
  4. gavin19

    gavin19 New Member

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    From reading around it seems that it may be a bios setting to do with 'Remapping memory' that's in order. It could also be a limitation of your chipset, in that if it is 32bit then you will max out at 3.25 of usable RAM, hopefully this isn't the case.

    Could you post the full spec of your PC please, especially your motherboard and RAM.
     
  5. mrpc999

    mrpc999 New Member

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    Thanks for the help

    MB is a Foxconn NL 94V-0 E253317 (this part number was on the bottom of the board in small letters)

    CPU is an Intel core 2 quad Q6600 2.4GHz

    The RAM is 2 off 1GB SiS, abd 2 off 2GB Adata, latter a matched pair, all is DDR2
     
  6. gavin19

    gavin19 New Member

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    Can't find that motherboard anywhere, it must be a serial number of some sort. Download CPU-Z and run it. Once installed click the Mainboard tab and it should give you everything you need to know, MB, chipset etc etc. Like this -

    [​IMG]
     
  7. pbcopter

    pbcopter Honorable Member

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    Select the start Orb and type msconfig into the start search box.

    Then select the boot TAB, then advanced options.

    Make sure maximum memory is not checked.
     
  8. mrpc999

    mrpc999 New Member

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    Thanks again for the help

    The msconfig was checked and max memory is unchecked. In

    task manager > performance > resource monitor > memory, it shows"hardware reserved 2818MB"

    I also noted that 2 memory sticks are PC2-5300 and 2 are PC2-6400. Could this cause a problem?

    system > device manager > computer reports it is an x64 PC

    The output from CPUZ is partially shown below -

    CPU-Z TXT Report
    -------------------------------------------------------------------------

    Binaries
    -------------------------------------------------------------------------

    CPU-Z version 1.52.2

    Processors
    -------------------------------------------------------------------------

    Number of processors 1
    Number of threads 4

    APICs
    -------------------------------------------------------------------------

    Processor 0
    -- Core 0
    -- Thread 0 0
    -- Core 1
    -- Thread 0 1
    -- Core 2
    -- Thread 0 2
    -- Core 3
    -- Thread 0 3

    Processors Information
    -------------------------------------------------------------------------

    Processor 1 ID = 0
    Number of cores 4 (max 4)
    Number of threads 4 (max 4)
    Name Intel Core 2 Quad Q6600
    Codename Kentsfield
    Specification Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz
    Package (platform ID) Socket 775 LGA (0x4)
    CPUID 6.F.B
    Extended CPUID 6.F
    Core Stepping G0
    Technology 65 nm
    Core Speed 1595.9 MHz
    Multiplier x FSB 6.0 x 266.0 MHz
    Rated Bus speed 1063.9 MHz
    Stock frequency 2400 MHz
    Instructions sets MMX, SSE, SSE2, SSE3, SSSE3, EM64T
    L1 Data cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
    L1 Instruction cache 4 x 32 KBytes, 8-way set associative, 64-byte line size
    L2 cache 2 x 4096 KBytes, 16-way set associative, 64-byte line size
    FID/VID Control yes
    FID range 6.0x - 9.0x
    Max VID 1.288 V

    Chipset
    -------------------------------------------------------------------------

    Northbridge Intel P35/G33/G31 rev. A2
    Southbridge Intel 82801IH (ICH9DH) rev. 02
    Graphic Interface PCI-Express
    PCI-E Link Width x16
    PCI-E Max Link Width x16
    Memory Type DDR2
    Memory Size 6144 MBytes
    Channels Dual, (Symmetric)
    Memory Frequency 332.5 MHz (4:5)
    CAS# latency (CL) 5.0
    RAS# to CAS# delay (tRCD) 5
    RAS# Precharge (tRP) 5
    Cycle Time (tRAS) 15
    Row Refresh Cycle Time (tRFC) 44
    Command Rate (CR) 2T
    MCHBAR I/O Base address 0x0FED14000
    MCHBAR I/O Size 4096
    MCHBAR registers

    Memory SPD
    -------------------------------------------------------------------------

    DIMM # 1
    SMBus address 0x50
    Memory type DDR2
    Module format Regular UDIMM
    Manufacturer (ID) (0000000000000000)
    Size 1024 MBytes
    Max bandwidth PC2-5300 (333 MHz)
    Part number
    Number of banks 2
    Data width 64 bits
    Correction None
    Nominal Voltage 1.80 Volts
    EPP no
    XMP no
    JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
    JEDEC #1 3.0-3-3-9-12 @ 200 MHz
    JEDEC #2 4.0-4-4-12-16 @ 266 MHz
    JEDEC #3 5.0-5-5-15-20 @ 333 MHz


    DIMM # 2
    SMBus address 0x51
    Memory type DDR2
    Module format Regular UDIMM
    Manufacturer (ID) A-Data Technology (7F7F7F7FCB000000)
    Size 2048 MBytes
    Max bandwidth PC2-6400 (400 MHz)
    Part number DQVE1B16
    Manufacturing date Week 12/Year 08
    Number of banks 2
    Data width 64 bits
    Correction None
    Nominal Voltage 1.80 Volts
    EPP no
    XMP no
    JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
    JEDEC #1 3.0-3-3-9-12 @ 200 MHz
    JEDEC #2 4.0-4-4-12-16 @ 266 MHz
    JEDEC #3 5.0-5-5-18-23 @ 400 MHz


    DIMM # 3
    SMBus address 0x52
    Memory type DDR2
    Module format Regular UDIMM
    Manufacturer (ID) (0000000000000000)
    Size 1024 MBytes
    Max bandwidth PC2-5300 (333 MHz)
    Part number
    Number of banks 2
    Data width 64 bits
    Correction None
    Nominal Voltage 1.80 Volts
    EPP no
    XMP no
    JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
    JEDEC #1 3.0-3-3-9-12 @ 200 MHz
    JEDEC #2 4.0-4-4-12-16 @ 266 MHz
    JEDEC #3 5.0-5-5-15-20 @ 333 MHz


    DIMM # 4
    SMBus address 0x53
    Memory type DDR2
    Module format Regular UDIMM
    Manufacturer (ID) A-Data Technology (7F7F7F7FCB000000)
    Size 2048 MBytes
    Max bandwidth PC2-6400 (400 MHz)
    Part number DQVE1B16
    Manufacturing date Week 12/Year 08
    Number of banks 2
    Data width 64 bits
    Correction None
    Nominal Voltage 1.80 Volts
    EPP no
    XMP no
    JEDEC timings table CL-tRCD-tRP-tRAS-tRC @ frequency
    JEDEC #1 3.0-3-3-9-12 @ 200 MHz
    JEDEC #2 4.0-4-4-12-16 @ 266 MHz
    JEDEC #3 5.0-5-5-18-23 @ 400 MHz



    Monitoring
    -------------------------------------------------------------------------

    Mainboard Model G33M05 (0x0000015F - 0x004EF6A0)

    LPCIO
    -------------------------------------------------------------------------

    LPCIO Vendor ITE
    LPCIO Model IT8718
    LPCIO Vendor ID 0x90
    LPCIO Chip ID 0x8718
    LPCIO Revision ID 0x3
    Config Mode I/O address 0x2E
    Config Mode LDN 0x4
    Config Mode registers






    Description VGA Controller
    Location bus 1 (0x01), device 0 (0x00), function 0 (0x00)
    Common header
    Vendor ID 0x10DE
    Model ID 0x0422
    Revision ID 0xA1
    PI 0x00
    SubClass 0x00
    BaseClass 0x03
    Cache Line 0x10
    Latency 0x00
    Header 0x00
    PCI header
    Address 0 (memory) 0xFA000000
    Address 1 (memory) 0xD0000000
    Address 3 (memory) 0xF8000000
    Address 5 (port) 0x0000DF00
    Subvendor ID 0x105B
    Subsystem ID 0x0F1F
    Int. Line 0x10
    Int. Pin 0x01
    PCI capability
    Caps class Power Management
    Caps offset 0x60
    Caps version 1.1
    PCI capability
    Caps class Message Signalled Interrupts
    Caps offset 0x68
    PCI capability
    Caps class PCI Express
    Caps offset 0x78
    Device type PCI-E Endpoint Device
    Port 0
    Version 1.0
    Link width 16x (max 16x)
    Extended capabilities
    Caps class Virtual Channel
    Caps offset 0x100
    Caps class Power Budgeting
    Caps offset 0x128
    Caps class Vendor Specific
    Caps offset 0x600
    Vendor ID 1
    Size 36




    DMI
    -------------------------------------------------------------------------

    DMI BIOS
    vendor Phoenix Technologies, LTD
    version 763D3.P03
    date 09/17/2007

    DMI System Information
    manufacturer DIXONSXP
    product T9610
    version OEM
    serial 910301100600G74101120
    UUID 001C2537-23212007-10120151-17000000

    DMI Baseboard
    vendor DIXONSXP
    model G33M05
    revision MP
    serial UYSA74002015

    DMI System Enclosure
    manufacturer DIXONSXP
    chassis type Desktop
    chassis serial 0

    DMI Processor
    manufacturer Intel
    model Intel(R) Core(TM)2 Quad
    clock speed 2400.0 MHz
    FSB speed 266.0 MHz
    multiplier 9.0x

    DMI Memory Controller
    correction 8-bit parity
    Max module size 2048 MBytes

    DMI Memory Module
    designation A0
    size 1024 MBytes (double bank)

    DMI Memory Module
    designation A1
    size 2048 MBytes (double bank)

    DMI Memory Module
    designation A2
    size 1024 MBytes (double bank)

    DMI Memory Module
    designation A3
    size 2048 MBytes (double bank)





    API NVIDIA NVAPI
    API NVIDIA I/O

    Display Adapters
    -------------------------------------------------------------------------

    Display adapter 0
    Manuf. API index 0
    Display name \\.\DISPLAY1
    Name NVIDIA GeForce 8400 GS
    Revision A2
    Codename G86
    Technology 80 nm
    Memory size 256 MB
    Memory type DDR2
    Memory bus width 64 bits
    PCI device bus 1 (0x1), device 0 (0x0), function 0 (0x0)
    Vendor ID 0x10DE (0x105B)
    Model ID 0x422 (0xF1F)
    Performance Level 3D Applications
    Core clock 459.0 MHz
    Shader clock 918.0 MHz
    Memory clock 400.0 MHz


    Software
    -------------------------------------------------------------------------

    Windows Version Microsoft Windows 7 (6.1) Home Premium Edition (Build 7600)
    DirectX Version 10.0
     
  9. gavin19

    gavin19 New Member

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    I would remove the 2gigs of slower RAM as they are dragging the other DIMMs down to their speed in order to operate properly, ie the 4gigs of PC-5300 are causing the other 4 gigs of PC-6400 to run at the same speed. 4gigs is plenty for W7 and you can always buy more of the same spec in the future if need be.

    You could also try updating your bios since it is pretty old. At the minute it is using the Dixons bios but this can be overwritten with the Foxconn one. You can find what you need here.
     
  10. mrpc999

    mrpc999 New Member

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    I took the 2 slower sticks out and the usable memory is still at 3.25 GB.

    I downloaded the BIOS upgrade from the Foxconn website but when I tried to install it I get an error message something like

    BIOS does not support AFUDOS

    I am wondering if the BIOS is locked in some way. The Foxconn instructions mention removing a jumper. I did try removing one but no change.

    Getting quite frustrated now as the reason I got W7 was to use additional memory but seems like I wasted my money as it seems there is no way to get usable more than 3.25.

    The system definitely is X64.

    Any further advice would be appreciated.
     
  11. confused

    confused New Member

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    that wouldn't be causing the problem. As long as both are compatible with the computer. One just performs a little better but still would give you the total memory amount.

    Some machines will only give you a maximum of memory. For example in a laptop some max out at 2 GB of memory with two slots. Thus putting in 2 2 gb totaling four GB would only show 2gb in that computer.
     
  12. gavin19

    gavin19 New Member

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    I'm stumped as CPU-Z clearly recognises the 6GB installed (at the time). I know shared Video memory can eat into your RAM but not by this much. There should be a bios setting related to 'Shared VRAM' or similar which you can turn off. Your motherboard supports up to 8GB of RAM so there is no reason for this apparent limitation. Maybe someone with a bit more technical expertise can jump in?
     
  13. mrpc999

    mrpc999 New Member

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    I have had a very good look at the BIOS adjustments possible. There are no options which might improve this problem. I believe if I could flash the BIOS with a newer version it could sort out this problem but for whatever reason it seems to be locked and won't allow me.
     
  14. confused

    confused New Member

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    I'd make sure your computer will work with that much memory. I could fill my slots up with loads of memory too but it just wouldn't be able to use it.
     

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