HP Compaq dx6050 MT Configuration Manual Download Page 9 | Manualshive

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HP Compaq dx6050 MT Configuration Manual Download Page 9

© 2004 Hewlett-Packard Development Company, L.P. The information
contained herein is subject to change without notice. The only warranties for
HP products and services are set forth in the express warranty statements
accompanying such products and services. Nothing herein should be construed
as constituting an additional warranty. HP shall not be liable for technical or
editorial errors or omissions contained herein.

371658-001, 06/2004

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Summary of Contents for Compaq dx6050 MT

Page 1: ...Graphics Memory for HP Business PC dx6050 Abstract 2 Introduction 2 Graphics Memory Allocation 3 Graphics Driver 3 Main Memory Configuration 4 Memory Speed 4 Summary 5 Appendix 6 Example 1 6 Example 2 7 Example 3 8 ...

Page 2: ...s white paper outlines main memory configuration issues and the performance testing and offers recommendations for optimizing the memory configuration Introduction The HP Business PC dx6050 is an AMD based business desktop from HP further broadening the range of HP business desktops available to the customer By incorporating processors chip set and integrated graphics from industry leaders AMD and...

Page 3: ... the amount of memory allocated by the Auto feature Table 1 Auto graphics memory allocation Main memory Graphics memory allocation Less than 256 MB 16 MB 256 MB 32 MB 384 MB or more 64 MB Alternatively the end user can manually specify an allocation of up to 128 MB Note If the end user specifies a graphics memory allocation that exceeds available main memory the BIOS defaults to the Auto setting H...

Page 4: ...significantly Note Performance tests carried out by HP on a HP Business PC dx6050 show the following performance gains for dual channel over single channel memory SYSmark test suites 5 6 7 6 Winstone test suites 0 4 2 9 Mad Onion 3DMark as much as 65 These test results only serve as a reference to demonstrate differences that may exist between memory configurations The results may vary with system...

Page 5: ...ory size For example a desktop with two 128MB DIMMs may out perform a system with a single 256MB DIMM because the dual channel configuration doubles memory bandwidth Again HP recommends the dual channel configuration Graphics driver HP recommends using the graphics driver supplied with the HP Business PC dx6050 Using an alternative driver may impact system performance as shown in the Appendix Summ...

Page 6: ...the specified graphics memory allocation to the top of the memory space Since memory is 128 bits wide graphics performance is optimal Note If the end user deploys an add in AGP graphics card the integrated graphics are automatically disabled the graphics memory allocation becomes available to other applications If the end user deploys a PCI graphics card the integrated graphics are likewise disabl...

Page 7: ...Figure 2 Dual channel memory with mismatched DIMMS HP graphics driver The BIOS maps upper memory to be 64 bits wide lower memory to be 128 bits wide The BIOS maps the specified graphics memory allocation to the top of the memory space the larger DIMM Since upper memory is 64 bits wide graphics performance is sub optimal ...

Page 8: ...8 bits wide The BIOS maps the specified graphics memory allocation to the top of the memory space part of the larger DIMM The allocation is 64 bits wide An alternative driver may automatically re map the graphics allocation to the faster 128 bit memory space to optimize graphics performance However the space originally allocated by the BIOS for integrated graphics is still hidden from the operatin...

Page 9: ...The only warranties for HP products and services are set forth in the express warranty statements accompanying such products and services Nothing herein should be construed as constituting an additional warranty HP shall not be liable for technical or editorial errors or omissions contained herein 371658 001 06 2004 ...

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