eMachines D620 memory limit

Discussion in 'BIOS Mods' started by ipL, Jun 3, 2012.

  1. ipL

    ipL MDL Novice

    Nov 14, 2009
    #1 ipL, Jun 3, 2012
    Last edited by a moderator: Apr 20, 2017
    Hello there!

    I would like to know is it possible to modify bios in such a way that access above 4GiB of RAM would be available? If so, could you please explain how you do it or otherwise what i have to do?

    Map of firmware memory ranges (from int 15h function E820h)
    Address Size Type
    =================== =================== =================
    0x00000000`00000000 0x00000000`0009DC00 1 (memory)
    0x00000000`0009DC00 0x00000000`00002400 2 (reserved)
    0x00000000`000D0000 0x00000000`00030000 2 (reserved)
    0x00000000`00100000 0x00000000`AFD80000 1 (memory)
    0x00000000`AFE80000 0x00000000`0000E000 3 (ACPI Reclaim)
    0x00000000`AFE8E000 0x00000000`00002000 4 (ACPI NVS)
    0x00000000`AFE90000 0x00000000`00070000 2 (reserved)
    0x00000000`AFF00000 0x00000000`00100000 2 (reserved)
    0x00000000`B0000000 0x00000000`10000000 2 (reserved)
    0x00000000`E0000000 0x00000000`10000000 2 (reserved)
    0x00000000`FEC00000 0x00000000`00010000 2 (reserved)
    0x00000000`FEE00000 0x00000000`00001000 2 (reserved)
    0x00000000`FFF00000 0x00000000`00100000 2 (reserved)
    Summary (in MB, ignoring partial MB):
    Total memory: 2814
    Memory above 4GB: 0
    -Manufacturer: eMachines D620
    -Motherboard Model: eMachines D620
    -Bios revision: V1.03
    -Bios Type: Phoenix
    -Bios Download Link: h??p://global-download.gateway.com/GDFiles/BIOS/BIOS/BIOS_eMachines_1.03_A_D620.zip?acerid=633894478831391382&Step1=NOTEBOOK&Step2=D%20SERIES&Step3=D620&OS=ALL&LC=en&BC=EMACHINES&SC=PA_6E

    Thanks in advance.