CN201152973Y

CN201152973Y - Extension card

Info

Publication number: CN201152973Y
Application number: CNU2008200426790U
Authority: CN
Inventors: 张兴全; 邱垂清
Original assignee: Mitac Computer Shunde Ltd
Current assignee: Mitac Computer Shunde Ltd; Shunda Computer Factory Co Ltd
Priority date: 2008-01-10
Filing date: 2008-01-10
Publication date: 2008-11-19
Anticipated expiration: 2018-01-10

Abstract

The utility model provides an expansion card which is applicable to a mainboard. The expansion card at least includes a first PCIE slot with larger passage width and a second PCIE slot with smaller passage width, wherein, the expansion card also includes a detecting subassembly for detecting whether an adapter card is inserted in the first or the second PCIE slot, and a switching subassembly which is electrically connected with the detecting subassembly and controls whether the passage used by the second PCIE slot can be switched for the first PCIE slot for use, and the switching subassembly is a pi2PCIE412 chip. For the expansion card provided by the utility model, the first PCIE slot with larger passage width and the second PCIE slot with smaller passage width are simultaneously arranged, two original expansion cards are replaced by one expansion card, not only the cost is saved, but also the usage is facilitated.

Description

A kind of expansion board

Technical field

The utility model relates to a kind of expansion board, relates in particular to a kind of its and is provided with the expansion board of different slots.

Background technology

PCIE (also being called PCI Express) replaces PCI so that the new I/O interface of higher frequency range to be provided.Common PCIE form has x1, x2, x4, x8 and x16 etc., every kind of form all has its special-purpose slot (slot), because the transmission speed of PCIE one-way channel can reach 250MB/s at present, almost be the twice of general PCI transmission speed, and the speed of PCIE x16 form more reaches 16GB/s.Therefore, PCIE is mainly used on the big products such as display card of frequency range requirement.

Existing expansion board can be done different designs at the slot on it, in general, the golden finger of expansion board is designed to PCIE x16, at this moment, can be designed to the slot of 2 PCIE x8 on the expansion board, or 1 PCIEx16 slot, or these 3 kinds of situations of the slot of 3 PCIE x8, if when being designed to the slot of 3 PCIE x8, this expansion board need add an extra IC, this will increase cost.

Summary of the invention

In view of the above problems, the utility model provides a kind of expansion board.

In order to achieve the above object, the utility model has adopted following technical scheme: a kind of expansion board, it is applicable on the mainboard, this expansion board comprises that at least one has the 2nd PCIE slot that has the smaller channels width than a PCIE slot and of major path width, wherein, comprise also on the described expansion board one detects the detection components whether above-mentioned first, second PCIE slot has adapter to insert, and one electrically connects with this detection components and passage that whether control used the 2nd PCIE slot switches changeover module to PCIE slot use.

Preferable, expansion board described in the utility model, wherein, first, second PCIE slot on the described expansion board is one of PCIE X1, PCIE X2, PCIE X4, PCIE X8, PCIE X12 and PCIE X16.

Preferable, expansion board described in the utility model, wherein, described changeover module is a 2:1Mux/DeMuxSwitch, is a pi2PCIE412 chip.

Compared to prior art, expansion board described in the utility model is provided with one simultaneously and has the PCIE slot of smaller channels width than a PCIE slot and of major path width on it, replace two original expansion boards with an expansion board, not only cost saving, and convenient the use.

Description of drawings

Fig. 1 is a block diagram of the present utility model

Embodiment

Please refer to shown in Figure 1ly, be synoptic diagram of the present utility model.The utility model is an expansion board 10, and described expansion board 10 comprises that mainly a detection components 101, switches the 2nd PCIE slot 104 that a PCIE slot 103 and that assembly 102, has bigger channel width has the smaller channels width.

Wherein, a described PCIE slot 103 and the 2nd PCIE slot 104 can be one of PCIE X1, PCIE X2, PCIE X4, PCIE X8, PCIE X12 and PCIE X16, in present embodiment, the one PCIE slot 103 is set to PCIE X16 slot, the 2nd PCIE slot 104 is set to PCIE X8 slot, and described expansion board 10 is one to have the expansion board of PCIE X16 golden finger.

In addition, described detection components 101 is used to detect on an above-mentioned PCIE slot 103 and the 2nd PCIE slot 104 whether be equiped with adapter, described changeover module 102 electrically connects with above-mentioned detection components 101, and according to the quantity of adapter of installing on a PCIE slot 103 and the 2nd PCIE slot 104 with limited PCIE channel allocation to a PCIE slot 103 and the 2nd PCIE slot 104, in present embodiment, described changeover module 102 can be a 2:1Mux/DeMux Switch, is a pi2PCIE412 chip.

If detection components 101 detects on the 2nd PCIE slot 104 and is equiped with an adapter, and because the 2nd PCIE slot 104 is set to PCIE X8 slot, then detection components 101 is sent one and is controlled signal to changeover module 102, to control changeover module 102 with limited PCIE channel mean allocation to a PCIE slot 103 and the 2nd PCIE slot 104, so, the one PCIE slot 103 is reduced to the usefulness of making PCIE X8 slot by PCIE X16 slot, at this moment, described expansion board 10 makes to have the expansion board usefulness of two PCIE X8 slots.

If detection components 101 detects on the PCIE slot 103 and is equiped with an adapter, and because a PCIE slot 103 is set to PCIE X16 slot, then detection components 101 is sent one and is controlled signal to changeover module 102, with control changeover module 102 limited PCIE passage all is dispensed to a PCIE slot 103, so, the one PCIE slot 103 is still as the usefulness of PCIE X16 slot, and the 2nd PCIE slot 104 is set to the not effect of PCIEX8 slot.At this moment, described expansion board 10 only has the expansion board usefulness of a PCIE X16 slot.

Claims

1. expansion board, it is applicable on the mainboard that this expansion board comprises that at least one has the 2nd PCIE slot that has the smaller channels width than a PCIE slot and of major path width, it is characterized in that, also comprises on the described expansion board:

One detects the detection components whether above-mentioned first, second PCIE slot has adapter to insert, and one electrically connects with this detection components and passage that whether control is used the 2nd PCIE slot switches changeover module to PCIE slot use.

2. expansion board according to claim 1 is characterized in that, first, second PCIE slot on the described expansion board is one of PCIE X1, PCIE X2, PCIE X4, PCIE X8, PCIE X12 and PCIE X16.

3. expansion board according to claim 1 is characterized in that, described changeover module is a 2:1Mux/DeMux Switch, is a pi2PCIE412 chip.