Memory : 0.87GB?

Hey, this machine have 1GB of ram, why 3DP Chip detects only 0.87?

HDAUDIOFUNC_01&VEN_10EC&DEV_0260&SUBSYS_103C280A&REV_1004 Realtek Realtek High Definition Audio Bus interno High Definition Audio MEDIA
USBROOT_HUB&VID1002&PID4387&REV0000 (Controller host USB standard) Hub principale USB USB
USBROOT_HUB&VID1002&PID4388&REV0000 (Controller host USB standard) Hub principale USB USB
USBROOT_HUB&VID1002&PID4389&REV0000 (Controller host USB standard) Hub principale USB USB
USBROOT_HUB&VID1002&PID438A&REV0000 (Controller host USB standard) Hub principale USB USB
USBROOT_HUB&VID1002&PID438B&REV0000 (Controller host USB standard) Hub principale USB USB
USBROOT_HUB20&VID1002&PID4386&REV0000 (Controller host USB standard) Hub principale USB USB
USBVid_13fe&Pid_1e00&Rev_0110 Periferica di archiviazione USB compatibile Periferica di archiviazione di massa USB USB DISK 2.0 USB
ACPIAuthenticAMD_-_x86_Family_15_Model_75 *AuthenticAMD_-_x86_Family_15_Model_75 ACPIAuthenticAMD_-_x86_Family_15 *AuthenticAMD_-_x86_Family_15 ACPIAuthenticAMD_-_x86 *AuthenticAMD_-_x86 Advanced Micro Devices Processore AMD K8 Processor
ACPIAuthenticAMD_-_x86_Family_15_Model_75 *AuthenticAMD_-_x86_Family_15_Model_75 ACPIAuthenticAMD_-_x86_Family_15 *AuthenticAMD_-_x86_Family_15 ACPIAuthenticAMD_-_x86 *AuthenticAMD_-_x86 Advanced Micro Devices Processore AMD K8 Processor
ACPIFixedButton *FixedButton (Periferiche standard di sistema) Pulsante caratteristica ACPI fissa System
ACPIPNP0000 *PNP0000 (Periferiche standard di sistema) Controller di interrupt programmabile (PIC) System
ACPIPNP0003 *PNP0003 (Periferiche standard di sistema) Controller di interrupt programmabile avanzato System
ACPIPNP0100 *PNP0100 (Periferiche standard di sistema) Timer di sistema System
ACPIPNP0200 *PNP0200 (Periferiche standard di sistema) Controller di accesso diretto alla memoria (DMA) System
ACPIPNP0303 *PNP0303 (Tastiere standard) Tastiera standard 101/102 tasti o Tastiera Microsoft Natural PS/2 Keyboard
ACPIPNP0401 *PNP0401 (Tipi di porte standard) Porta stampante ECP Ports
ACPIPNP0501 *PNP0501 (Tipi di porte standard) Porta di comunicazione Ports
ACPIPNP0700 *PNP0700 (Controller disco floppy standard) Controller disco floppy standard fdc
ACPIPNP0800 *PNP0800 (Periferiche standard di sistema) Altoparlante di sistema System
ACPIPNP0A08 *PNP0A08 (Periferiche standard di sistema) Bus PCI System
ACPIPNP0B00 *PNP0B00 (Periferiche standard di sistema) Orologio di sistema CMOS a tempo reale System
ACPIPNP0C01 *PNP0C01 (Periferiche standard di sistema) Scheda di sistema System
ACPIPNP0C02 *PNP0C02 (Periferiche standard di sistema) Risorse scheda madre System
ACPIPNP0C02 *PNP0C02 (Periferiche standard di sistema) Risorse scheda madre System
ACPIPNP0C04 *PNP0C04 (Periferiche standard di sistema) Coprocessore matematico System
ACPIPNP0C0C *PNP0C0C (Periferiche standard di sistema) Pulsante alimentazione ACPI System
ACPIPNP0C14 *PNP0C14 Microsoft Strumentazione gestione Microsoft Windows per ACPI System
ACPIPNP0F13 *PNP0F13 Logitech Logitech-compatible Mouse PS/2 Mouse
PCIVEN_1002&DEV_4380&SUBSYS_2812103C&REV_00&CC_01018A (Controller IDE ATA/ATAPI standard) Controller standard PCI IDE Bus PCI 0, periferica 18, funzione 0 hdc
PCIVEN_1002&DEV_4383&SUBSYS_280A103C&REV_00&CC_040300 Microsoft Driver bus UAA Microsoft per High Definition Audio Bus PCI 0, periferica 20, funzione 2 System
PCIVEN_1002&DEV_4384&SUBSYS_00000000&REV_00&CC_060401 (Periferiche standard di sistema) Adattatore PCI standard da PCI a PCI Bus PCI 0, periferica 20, funzione 4 System
PCIVEN_1002&DEV_4385&SUBSYS_280A103C&REV_13&CC_0C0500 ATI Technologies Inc ATI SMBus Bus PCI 0, periferica 20, funzione 0 System
PCIVEN_1002&DEV_4386&SUBSYS_280A103C&REV_00&CC_0C0320 (Controller host USB standard) Controller host standard avanzato da PCI a USB Bus PCI 0, periferica 19, funzione 5 USB
PCIVEN_1002&DEV_4387&SUBSYS_280A103C&REV_00&CC_0C0310 (Controller host USB standard) Controller host USB OpenHCD Standard Bus PCI 0, periferica 19, funzione 0 USB
PCIVEN_1002&DEV_4388&SUBSYS_280A103C&REV_00&CC_0C0310 (Controller host USB standard) Controller host USB OpenHCD Standard Bus PCI 0, periferica 19, funzione 1 USB
PCIVEN_1002&DEV_4389&SUBSYS_280A103C&REV_00&CC_0C0310 (Controller host USB standard) Controller host USB OpenHCD Standard Bus PCI 0, periferica 19, funzione 2 USB
PCIVEN_1002&DEV_438A&SUBSYS_280A103C&REV_00&CC_0C0310 (Controller host USB standard) Controller host USB OpenHCD Standard Bus PCI 0, periferica 19, funzione 3 USB
PCIVEN_1002&DEV_438B&SUBSYS_280A103C&REV_00&CC_0C0310 (Controller host USB standard) Controller host USB OpenHCD Standard Bus PCI 0, periferica 19, funzione 4 USB
PCIVEN_1002&DEV_438C&SUBSYS_280A103C&REV_00&CC_01018F (Controller IDE ATA/ATAPI standard) Controller standard PCI IDE Bus PCI 0, periferica 20, funzione 1 hdc
PCIVEN_1002&DEV_438D&SUBSYS_00000000&REV_00&CC_060100 (Periferiche standard di sistema) Adattatore PCI standard per bus ISA Bus PCI 0, periferica 20, funzione 3 System
PCIVEN_1002&DEV_5874&SUBSYS_280B103C&REV_00&CC_038000 ATI Technologies Inc. ATI Radeon Xpress 1150 Series Secondary Bus PCI 1, periferica 5, funzione 1 Display
PCIVEN_1002&DEV_5950&SUBSYS_00000000&REV_10&CC_060000 (Periferiche standard di sistema) Adattatore PCI standard per CPU host Bus PCI 0, periferica 0, funzione 0 System
PCIVEN_1002&DEV_5974&SUBSYS_280A103C&REV_00&CC_030000 ATI Technologies Inc. ATI Radeon Xpress 1150 Series Bus PCI 1, periferica 5, funzione 0 Display
PCIVEN_1002&DEV_5A39&SUBSYS_00000000&REV_00&CC_060400 (Periferiche standard di sistema) Adattatore PCI standard da PCI a PCI Bus PCI 0, periferica 7, funzione 0 System
PCIVEN_1002&DEV_5A3F&SUBSYS_00000000&REV_00&CC_060400 (Periferiche standard di sistema) Adattatore PCI standard da PCI a PCI Bus PCI 0, periferica 1, funzione 0 System
PCIVEN_14E4&DEV_167B&SUBSYS_280A103C&REV_02&CC_020000 Broadcom Broadcom NetXtreme Gigabit Ethernet Bus PCI 63, periferica 0, funzione 0 Net


CPU : AMD Athlon 64 X2 Dual Core 4200+ 1.3.2.0 (5-27-2006) ( 3dpchip.com/3dp/chip_13cpu.php?d=amd )
Motherboard : [HP 0A64h] AMD 480X (Xpress 1600 / 200 Rename) 11.8 (08-17-2011) ( 3dpchip.com/3dp/chip_13mb.php?d=amd )
Graphic Card : ATi Radeon Xpress 1150 8.261.4.0 (07-22-2006) ( 3dpchip.com/3dp/chip_13gc.php?d=ati_a300 )
Multimedia Card : Realtek HD Audio (ALC260) 5.10.0.5645 (06-17-2008) ( 3dpchip.com/3dp/chip_13sc.php?d=realtek_hd )
Ethernet Card : Broadcom NetXtreme BCM5755 14.6.0.6 (01-17-2011) ( 3dpchip.com/3dp/chip.php?driver=dp_net )
ETC : TouchPad : PS/2 Port 9.79.0.0 (07-11-2003) ( 3dpchip.com/3dp/chip_13etc.php?d=elan_synaptics_p34g_ps2_1 )

Memory : 0.87GB

O/S : Windows XP Professional SP3 32bit

3DP Chip (www.3dpchip.com) - Chip Ver.140623