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Mainboard supporting composite memory device

A memory, hybrid technology, used in the direction of measuring devices, measuring flow/mass flow, input/output to record carriers, etc.

Inactive Publication Date: 2008-05-07
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there is still no motherboard that can support DDR2 and DDR3 memory at the same time in the design of the motherboard.

Method used

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  • Mainboard supporting composite memory device

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Experimental program
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Embodiment Construction

[0009] Referring to FIG. 1 , a motherboard supporting hybrid memory includes a serial presence detect (SPD) 10 , a voltage regulation circuit 20 , a first connector 30 and a second connector 40 . The first connector 30 is used for installing DDR2 memory, and the second connector 40 is used for installing DDR3 memory. Only one type of memory can be selected to be installed on the motherboard at the same time.

[0010] The SPD10 is a group of memory configuration information, such as speed, capacity, voltage and row, column address bandwidth, etc., which are stored in an Electrically Erasable Programmable Read Only Memory (Electrically Erasable Programmable Read Only Memory) with a capacity of 256 bytes. Memory, EEPROM). The type of memory used can be determined according to the difference between DDR2 memory and DDR3 memory in any SPD Byte (byte). Table 1 lists the value corresponding to each bit (bit) in SPD Byte2 of DDR2 and DDR3 memory.

[0011] Table 1

[0012] ...

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Abstract

A motherboard supporting a hybrid memory, comprising a first connector, a second connector, a voltage regulation circuit electrically connected to the first connector and the second connector, and a voltage regulation circuit connected to the voltage regulator A circuit-connected serial presence detection unit, the first connector is used to install a first type memory, the second connector is used to install a second type memory, and the first and second type memory are selected to be installed in On the main board, the serial presence detection unit is used to determine the type of memory installed on the main board, and the voltage regulation circuit is based on the memory installed on the main board detected by the serial presence detection unit type provides the appropriate operating voltage for the memory. The motherboard supporting hybrid memory can flexibly support different types of memory to meet the needs of different users.

Description

technical field [0001] The invention relates to a computer motherboard, in particular to a motherboard that can flexibly support Double Data Rate 2 (DDR2 for short) memories and Double Data Rate 3 (DDR3 for short) memories. Background technique [0002] In addition to the central processing unit, the control chipset and the slots for installing external cards on the mainboard of a general personal computer, there are also several connectors for installing memory. Users can install different amounts of memory according to their needs. With the rapid development of memory manufacturing technology, DDR3 memory will become the main trend of dynamic random access memory in the future because of its stronger performance in terms of power consumption and speed. However, it still needs a certain transition period to switch from the currently commonly used DDR2 memory to the DDR3 memory. [0003] However, since the operating voltages of DDR2 and DDR3 memories are different, the ope...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06G06F1/26
CPCG06F1/26
Inventor 许寿国何敦逸李政宪
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD