DIMM 1

DIMM 2

DIMM3

DIMM4

Total

 

 

 

 

 

128MB~1GB

 

128MB~1GB

 

256MB~2GB

 

 

 

 

 

 

128MB~1GB

 

128MB~1GB

256MB~2GB

 

 

 

 

 

128MB~1GB

128MB~1GB

128MB~1GB

128MB~1GB

512MB~4GB

 

 

 

 

 

The following conditions must be met:

Matched DIMM configuration in each channel

Same Density (128MB, 256MB, 512MB, etc.)

Same DRAM technology (128Mb, 256Mb, or 512Mb)

Same DRAM bus width (x8 or x16)

Both either single-sided or dual-sided

Matched in both Channel A and Channel B memory channels

Populate symmetrical memory slots (Slot 0 or Slot 1)

The following conditions do not need to be met:

Same brand

Same timing specifications

Same DDR speed

Symmetrical DIMMs must be identical for optimal performance Same DIMM density, e.g. 128MB, 256MB, 512MB, etc. Same DRAM Technology, e.g. 128M-bit, 256M-bit, etc. Same DRAM bus width, e.g. x8 or x16

Single Sided or Dual Sided

NOTE: Note: Memory interface speed will be set to lowest speed of memory populated

Memory Characteristics

Optimize performance for single or dual channel is obtained with matched DIMM population

Table below shows DIMMs with same Organization and Density, but are non-matching as bus width, technology and/or external banks are different

Mixing these DIMMs will put platform into single channel mode

Non-Matched

128MB DIMMs

Non-Matched

256MB DIMMs

Same

Same

Different Bus

Different

Same # of

Organization

Density

Width

Technology

DRAM Banks

 

 

 

 

 

Organization

Density

Composition

Technology

External

Banks

 

 

 

 

16Mx64

128MB

16Mx8 * 8 pcs

128Mb

1

 

 

 

 

 

16Mx64

128MB

16Mx16 * 4 pcs

256Mb

1

32Mx64

256MB

16Mx8 * 16 pcs

128Mb

2

32Mx64

256MB

32Mx8 * 8 pcs

256Mb

1

Same

Same

Same

Different

Different # of

Organization

Density

Bus Width

Technology

DRAM Banks

24

Chapter 1

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Image 33
Acer Veriton 5600GT/5600V, Veriton 3600GT/3600V, Veriton 7600GTR/7600GT/7600V manual Memory Characteristics, Total