Available vs Usabel RAM Question

Desktop

Desktop
Desktop computer Hardware and Software discussion

Available vs Usabel RAM Question

This question is not answered

Just installed Windows 7 64-bit OS on my Dell Inspiron 530S. I check my sytstem settings and it says I have 4 GB of RAM but only 3.24 GB usable. I thought installing a 64bit OS would make all 4 GB available. Is there a hardware limitation I'm not aware of or a setting I need to change to make all 4 GB useable? Thanks.

0 01323 INFORMATION..., NO ITEM
1 DU685 Processor, E6550, 2.33, 4MB Core Duo-conroe
1 WN591 INSTRUCTION..., DEVIATE L6 TO L5+, 530S
1 NT204 PLACEMAT..., GETTING STARTED..., DIMENSION..., DELL AMERICAS ORGANIZATION..., BRAZIL CUSTOMER CENTER...
1 DN133 Hard Drive, 500G, S2, 7.2K, 16M Lead Free, Samsung
1 RR268 Display, Flat Panel Display, 22 SP2208WFP, Silver, Dell AmericasOrganization
1 RN859 Card, Wierless, Wireless local Area Network Card, PC InterfaceHalf Height, DELL AMERICAS ORGANIZATION...
1 FF959 Modem, V.92, Data Fax, Low Profile, SON2, Lead Free, Dell Americas Organization
1 WX236 Assembly, DVD+/-RW..., 16X, Bare Hitachi LG Data Storage
1 NT424 Assembly, Cable, FLEX-BAY MNTW/SLTW
1 XN068 Assembly, Flash Storage Device Universal Serial Bus, Reader Enhanced, BARE, Teac
1 PN182 KIT..., Software, Works, 8.5 English
4 XG700 Dual In-Line Memory Module 1GB, 800, 128X64, 8, 240, 2RX8
1 HX425 Kit, Software, Overpack, VHP32 A01, Digital Video Disk Drive England
1 HU507 ASSEMBLY..., CHASSIS..., SLTW, 530S, NON PFC..., PWA INTEGRATED...
1 JY167 Assembly, Heatsink, Fan, Mini Tower
1 WN324 Assembly, Bracket, Flexible Bay Slim Tower

All Replies