HP Pavilion Dm1 Memory upgrade: pc3-10600 versus pc3-8500

Hi,
After researching HP and other various sites, I recently upgraded my HP Pavilion DM1 from 3GB to 4GB RAM using 2 x 2GB PC3-10600 modules. The information I found seemed to indicate that the HP Pavilion would fully support 1333Mhz memory and I thought I could give my Netbook a little performance boost. Note: the price was the same for both the 1066 and 1333 memory modules.
My system is working OK, but I have a number of quick questions:
Although I have installed 1333 Mhz memory, it is been reported as 1066 Mhz via HP tools. Is this the maximum memory speed the Netbook supports and will utilising 1333 Mhz cause performance bottlenecks and long term damage to my system? Can I configure the system via BIOS to utilise the memory at 1333 Mhz?
As I use Windows Home Premium I understand there is a 3.5GB access limit (this is why I only upgraded the system to 4GB). Will the extra 500MB not utilised by Windows be utilised as video memory as I originally hoped or will it come out of the 3.5GB? i.e. in other words, is my 4GB upgrade in reality 3.5GB?
Thank you for your help in advance.
Kind regards,
Alex

Hi, Alex:
I don't know what exact model dm1 you have, but normally the memory runs at the max speed of the Processor's FSB in the case of Intel processors.
I am not quite sure on how AMD's processors work with regard to memory speed. Something about multipliers.
Did you consult the service manual?  Chapter 1 usually provides the processor and memory specs.
No damage will occur to your system if the memory speed is only 1066 MHz.
Nothing can be done to change the speed at which the memory runs (unless there is a BIOS update that addresses an issue--read any BIOS release notes for such a possibility, which I doubt there is).
You can check how your memory is being used in two places:
1. The Resource Monitor (in your system tools menu). In the memory section it will show system reserved, free, etc.
2. The Windows Experience Index's detailed report (Control Panel>system and security>WEI
You can see your video adapter's total memory, shared memory and dedicated memory.
Best regards,
Paul

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    APICs
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    Number of threads 4 (max 16)
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    Max efficiency ratio 9x
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    Power @ 10x 8 Watts
    Power @ 11x 9 Watts
    Power @ 12x 11 Watts
    Power @ 13x 13 Watts
    Power @ 14x 15 Watts
    Power @ 15x 18 Watts
    Power @ 16x 21 Watts
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    Graphic Interface PCI-Express
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    PCI-E Max Link Width x16
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    Channels Dual, (Symmetric)
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    CAS# latency (CL) 7.0
    RAS# to CAS# delay (tRCD) 7
    RAS# Precharge (tRP) 7
    Cycle Time (tRAS) 20
    Row Refresh Cycle Time (tRFC) 60
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    MCHBAR I/O Base address 0x0FED10000
    MCHBAR I/O Size 4096
    MCHBAR registers
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    DMI BIOS
    vendor Hewlett-Packard
    version 68AZZ Ver. F.0F
    date 02/18/2011
    ROM size 2560 KB
    DMI System Information
    manufacturer Hewlett-Packard
    product HP ProBook 4520s
    version unknown
    serial 2CE0211M4C
    UUID {1520830E-6A57-11DF-8C36-42C05900004D}
    SKU WS879EA#ABV
    family 103C_5336AN
    DMI Baseboard
    vendor Hewlett-Packard
    model 1411
    revision KBC Version 57.34
    serial 2CE0211M4C
    DMI System Enclosure
    manufacturer Hewlett-Packard
    chassis type Notebook
    chassis serial 2CE0211M4C
    DMI Processor
    manufacturer Intel(R) Corporation
    model Intel(R) Core(TM) i5 CPU M 430 @ 2.27GHz
    clock speed 2264.0 MHz
    FSB speed 133.0 MHz
    multiplier 17.0x
    DMI Extension Slot
    designation PCI SLOT1
    type PCI
    width 32 bits
    populated no
    DMI OEM Strings
    string[0] ABS 70/71 79 7A 7B 7C
    string[1] CSM v01.4A
    string[2] www.hp.com
    DMI Physical Memory Array
    location Motherboard
    usage System Memory
    correction None
    max capacity 8192 MBytes
    max# of devices 2
    DMI Memory Device
    designation Top-Slot 1(top)
    format SODIMM
    type unknown
    total width 64 bits
    data width 64 bits
    size 2048 MBytes
    DMI Memory Device
    designation Top-Slot 2(under)
    format SODIMM
    type unknown
    total width 64 bits
    data width 64 bits
    size 1024 MBytes
    Storage
    Drive 0
    Device Path \\?\scsi#disk&ven_&prod_st9320423as#4&1f4bc32b&0&0​00000#{53f56307-b6bf-11d0-94f2-00a0c91efb8b}
    Type Fixed
    Name ST9320423AS
    Capacity 298.1 GB
    SMART Support Yes
    USB Devices
    USB Device Generic USB Hub, class="0x09", subclass=0x00, vendor=0x8087, product=0x0020
    USB Device USB Composite Device, class="0xEF", subclass=0x02, vendor=0x0461, product=0x4DB6
    USB Device Generic USB Hub, class="0x09", subclass=0x00, vendor=0x8087, product=0x0020
    USB Device Microsoft Mouse and Keyboard Detection Driver (USB), class="0x00", subclass=0x00, vendor=0x045E, product=0x0745
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    Number of adapters 1
    Graphic APIs
    API ATI I/O
    Display Adapters
    Display adapter 0
    Name ATI Mobility Radeon HD 4500 Series (Microsoft Corporation - WDDM v1.1)
    Board Manufacturer 0x103C (0x1411)
    Memory size 512 MB
    PCI device bus 1 (0x1), device 0 (0x0), function 0 (0x0)
    Vendor ID 0x1002 (0x103C)
    Model ID 0x9555 (0x1411)
    Performance Level 0
    Win32_VideoController AdapterRAM = 0x20000000 (536870912)
    Win32_VideoController DriverVersion = 8.97.10.6
    Win32_VideoController DriverDate = 06/20/2012
    Software
    Windows Version Microsoft Windows 8.1 (6.3) 64-bit (Build 9600)
    DirectX Version 11.0
    This question was solved.
    View Solution.

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