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? Code: 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.