Dell Studio 1458 (Early 2010) - Manual (Page 76)

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Specifications
This section provides information that you may need when setting up, updating drivers for, and
upgrading your computer.
NOTE: Offerings may vary by region. For more information regarding the configuration of your
computer, click Start → Help and Support and select the option to view information about
your computer.
System Model Studio 1450 Studio 1457 Studio 1458
Computer Information
System chipset Intel GM45 Intel PM55 Intel HM55
Data bus width 64 bits
Processor address
bus width
32 bits
DRAM bus width dual channel (2)
64-bit buses
dual channel (2)
64-bit buses
dual channel (2)
64-bit buses
Flash EPROM 2 MB 4 MB 4 MB