The expanded structure of memory module slot
Technical field
The present invention relates to the expanded structure with memory module slot, relate in particular to a kind of expanded structure of memory module slot, can on motherboard, increase the memory modules group and establish quantity.
Background technology
The CPU (central processing unit) of main frame (Central Processing Unit, CPU) with random access memory (Random Access Memory, RAM) be used as region of data storage, the result of calculation of CPU (central processing unit) and programmed instruction all are positioned over random access memory, and when the program execution needs, can take the data in the storage area.
But now the function of main frame from strength to strength, for the also corresponding increase of the requirement of calculation function, thus the quantitative requirement of random access memory also with raising.Consult shown in [Figure 1A], [Figure 1B], wherein [Figure 1A] is inserted in the side view of motherboard for memory modules, and [Figure 1B] is the schematic perspective view of memory modules.Motherboard 20a (Mother Board) is provided with north bridge chips 21a (North Bridge), be adjacent to north bridge chips 21a and be provided with a plurality of memory module slot 22a, this memory module slot 22a can plant in golden finger mode (Golden Finger) for memory modules 50a, this memory modules 50a also includes printed circuit board (PCB) 51a and a plurality of internal memory 52a, and each internal memory 52a is mounted on respectively on the both ends of the surface of printed circuit board (PCB) 51a, and the transmission of the signal between north bridge chips 21a major control CPU (central processing unit) and the memory modules 50a.
Therefore under the situation that data processing speed and data volume increase day by day, when the memory modules capacity of being arranged in pairs or groups was more and more higher, correspondingly the memory module slot number was also many more, for the plant of memory modules.Memory module slot directly is located on the motherboard surface, if the desire group is established the memory modules of greater number, must on the motherboard surface, increase the number of memory module slot, the many more many areas of motherboard that just take of the number of memory module slot, establish under the area in limited motherboard group, will squeeze the group of other electron component and establish.Or the area of motherboard strengthened, establish plurality purpose memory module slot with group, but the area increase of motherboard will make the volume of main frame increase, and move towards short and small frivolous trend Divergence mutually with main frame.
In the above-mentioned prior art, when desire increases the memory modules capacity, must increase the lip-deep memory module slot of motherboard, therefore take the area of many motherboards.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of expanded structure of memory module slot, and the group that need not take too many motherboard is established area, gets final product the capacity of Extended RAM module.
According to the expanded structure of disclosed memory module slot, be applied to a motherboard, motherboard also is provided with a plurality of first memory module slots.The expanded structure of memory module slot includes a circuit switch plate and a substrate.Two ends of circuit switch plate form first splicing ear and second splicing ear of conducting each other respectively, wherein first splicing ear be electrically connected at first memory module slot one of them, and a side of substrate is provided with at least one second memory module slot, the another side is provided with a plurality of the 3rd memory module slots, wherein the 3rd memory bank is electrically connected at second memory module slot, and second splicing ear of circuit switch plate is electrically connected at second memory module slot, so as to be connected to each the 3rd memory module slot for a plurality of memory modules, electrically connect via the circuit switch plate and first memory module slot, and carry out the signal transmission with motherboard.
The expanded structure of disclosed memory module slot, its effect is, the group that need take too many motherboard is not established area, can be in limited space the Extended RAM module, decapacitation significantly reduces outside the shared motherboard surface area of memory modules, also can bring into play the maximum efficiency of memory modules, and memory modules utilizes circuit switch plate and substrate and stacking in motherboard, so the user can come the Extended RAM module according to demand.And the circuit switch plate is except can also being the connecting tube between motherboard and the substrate, and need not additional set dress connector, to reduce manufacturing cost as the support of substrate.
Description of drawings
Figure 1A is inserted in the side view of motherboard for existing memory modules;
Figure 1B is the schematic perspective view of existing memory modules;
Fig. 2 A is that the embodiment of the invention is not established memory expansion card schematic perspective view;
Fig. 2 B is that the embodiment of the invention has been established memory expansion card schematic perspective view;
Fig. 3 has established memory expansion card schematic side view for the embodiment of the invention;
Fig. 4 is inserted in the schematic top view of first memory module slot for embodiment of the invention circuit switch plate;
Fig. 5 is inserted in the schematic top view of the 3rd memory module slot for embodiment of the invention circuit switch plate;
Fig. 6 is the signal transmission synoptic diagram of embodiment of the invention north bridge chips by bus and full buffer formula memory modules.
Wherein, Reference numeral:
Prior art
20a: motherboard 21a: north bridge chips
22a: memory module slot 50a: memory modules
51a: printed circuit board (PCB) 52a: internal memory
The present invention
20: motherboard 21: north bridge chips
Memory module slot 30 in 22: the first: the circuit switch plate
32: the second splicing ears of 31: the first splicing ears
40: 42: the second memory module slots of substrate
Memory module slot 50 in 43: the three: full buffer formula memory modules
51: circuit board 52: internal memory
53: advanced memory buffer chip 60: bus
C1: first group of C2: second group
C3: the 3rd group of C4: the 4th group
Embodiment
Expanded structure according to disclosed memory module slot, and the pattern of memory modules for example has single line memory modules (Single In-line Memory Module, SIMM), DIMM (DualIn-line Memory Module, DIMM), rambus memory modules (Rambus In-line MemoryModule, RIMM) etc., but be not limited to above-mentioned memory modules, in following specific embodiments of the invention, will be used as most preferred embodiment of the present invention with DIMM.
Consult [Fig. 2 A], [Fig. 2 B] with shown in [Fig. 3], wherein [Fig. 2 A] do not establish memory expansion card schematic perspective view for the embodiment of the invention, [Fig. 2 B] establishes memory expansion card schematic perspective view for the embodiment of the invention, and [Fig. 3] establishes memory expansion card schematic side view for the embodiment of the invention.The expanded structure of this memory module slot is applied on the motherboard 20, and includes circuit switch plate 30 and substrate 40.Again, motherboard 20 is provided with CPU (central processing unit), north bridge chips 21 and other electronic component, be adjacent to north bridge chips 21 and be provided with a plurality of first memory module slots 22, this first memory module slot 22 can supply full buffer formula memory modules 50 (Fully Buffered DIMMs) to plant in the golden finger mode.Full buffer formula memory modules 50 also includes circuit board 51, a plurality of internal memory 52 and advanced memory buffer chip 53 (Advanced MemoryBuffer, AMB), and each internal memory 52 is mounted on respectively on the both ends of the surface of circuit board 51, and advanced memory buffer chip 53 also is mounted on the end face of circuit board 51.In addition, the transmission of the signal between north bridge chips 21 major control CPU (central processing unit) and the full buffer formula memory modules 50.So, CPU (central processing unit) is executable program just, and at any time storage data or from the storage area reading of data.
Circuit switch plate 30 is one to have the printed circuit board (PCB) of signal transmission line, its two end forms first splicing ear 31 and second splicing ear 32 of conducting each other respectively, wherein, first splicing ear 31 be inserted in motherboard 20 first memory module slots 22 wherein one, end extends towards the direction away from motherboard 20 in addition, in order to propping up substrate 40, and then substrate 40 is conducted in motherboard 20.The minimum number that the number of circuit switch plate 30 can satisfy on motherboard 20 firm substrate 40 is main, makes that substrate 40 is unlikely to topple over, and at this, the number of circuit switch plate 30 is two, but is not as limit.
One side of substrate 40 is provided with at least one second memory module slot 42, and the another side is provided with a plurality of the 3rd memory module slot 43, the three memory module slots 43 and is electrically connected at second memory module slot.Wherein, second memory module slot 42 of substrate 40 is corresponding to second splicing ear 32 of circuit switch plate 30, for the second splicing ear electrically connect of circuit switch plate 30, and each the 3rd memory module slot 42 is planted in the golden finger mode for each full buffer formula memory modules 50.At this, the number of second memory module slot 42 is two, but is not as limit, and each second memory module slot 42 is corresponding to one group of the 3rd memory module slot 43.
Consult Fig. 2 A, Fig. 2 B and Fig. 3, and Fig. 4, Fig. 5 and Fig. 6 are consulted in merging, wherein, Fig. 4 is inserted in the schematic top view of first memory module slot for the circuit switch plate, Fig. 5 is inserted in the schematic top view of the 3rd memory module slot for the circuit switch plate, and Fig. 6 is the signal transmission synoptic diagram of north bridge chips by bus and full buffer formula memory modules.According to above-mentioned member, when assembling, first splicing ear 31 of circuit switch plate 30 is inserted in first memory module slot 22 of motherboard 20, with support portions as substrate 40, then, second splicing ear 32 of second memory module slot, the 42 alignment circuit card extenders 30 of substrate 40, second memory module slots 42 and reach electrically connect so that second splicing ear 32 is planted, make substrate 40 parallel each other with motherboard 20, and has a spacing distance between the two, so, substrate 40 just frame repeatedly in first memory module slot, 22 tops of motherboard 20.First memory module slot 22 and the 3rd memory module slot 43 can be for assembler's full buffer formula memory modules 50 of planting.At this, the number of the full buffer formula memory modules 50 of the embodiment of the invention is eight, and totally four groups of first group of C1, second group of C2, the 3rd group of C3 and the 4th group of C4 are arranged according to its position branch, wherein, the full buffer formula memory modules that is inserted in first memory module slot 22 had two groups of C1 and C2 in 50 minutes, and the full buffer formula memory modules that is inserted in the 3rd memory module slot 43 had two groups of C3 and C4 in 50 minutes, but number is not as limit.The assembler looks the requirement of full buffer formula memory modules 50, and is inserted in first memory module slot 22 and the 3rd memory module slot 43 in the golden finger mode.
When practical application, north bridge chips 21 can send a signal to C1, C2, C3 and C4 by bus 60, and the full buffer formula memory modules 50 that also promptly is inserted in first memory module slot 22 and the 3rd memory module slot 43 can receive signal.But along with the position difference of full buffer formula memory modules 50, have nothing in common with each other in the path of signal transmission.Wherein, bus 60 to C1, C2 De Lu ? only pass through motherboard 20.And bus 60 to C3, C4 De Lu ?, through behind the motherboard 20 more respectively by two circuit switch plates, 30 to the 3rd memory module slots 43.So, be inserted in the full buffer formula memory modules 50 of the 3rd memory module slot 43, can carry out the transmission of data and signal with the north bridge chips 21 on the motherboard 20.
Be noted that, the height of circuit switch plate 40 is considered the configuration of main frame volume inside, for example when first splicing ear 31 of circuit switch plate 40 and second splicing ear 32 are inserted in first memory module slot 22 and second memory module slot 42, the spacing distance that substrate 40 and motherboard are 20, need to be inserted in height behind first memory module slot 22 greater than full buffer formula memory modules 50, in order to avoid the full buffer formula memory modules 50 of first memory module slot 22 is pressed and be positioned to substrate 40, and cause damage.
In like manner, according to above-mentioned number of assembling steps, can be in substrate 40 again towards another substrate being arranged, with demand in response to the assembler away from the direction of motherboard 20 is stacking.
In sum, the present invention adopts the mode of the storehouse that makes progress to increase the capacity of memory modules, in the off-capacity of memory modules or when desiring demand in response to the assembler, by the circuit switch plate to erect substrate on the zone that is provided with memory modules in the motherboard group, adorn more memory modules in order to increase, so, motherboard does not need to increase group again and establishes area so that memory module slot to be set, and allow memory module slot take too many motherboard area, and can reduce the area of its shared motherboard in large quantities.In addition, the assembler only needs circuit switch plate two ends are inserted in original memory module slot, just can make substrate and motherboard reach electrically connect, carrying out data transmission between the two, and need not to set up other connector with the saving cost.In addition, under the limited usable floor area of motherboard, come the Extended RAM module can bring into play its best efficiency equally towards the motherboard top.
Certainly; the present invention also can have other various embodiments; under the situation that does not deviate from spirit of the present invention and essence thereof; being familiar with those of ordinary skill in the art ought can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.