CN203773535U - Mainboard failure diagnostic card - Google Patents
Mainboard failure diagnostic card Download PDFInfo
- Publication number
- CN203773535U CN203773535U CN201420202653.3U CN201420202653U CN203773535U CN 203773535 U CN203773535 U CN 203773535U CN 201420202653 U CN201420202653 U CN 201420202653U CN 203773535 U CN203773535 U CN 203773535U
- Authority
- CN
- China
- Prior art keywords
- power supply
- cpld chip
- chip
- pcb
- cpld
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a mainboard failure diagnostic card, which structurally comprises a PCB (Printed Circuit Board), wherein a power supply, a CPLD (Complex Programmable Logic Device) chip and a display LED (Light Emitting Diode) are arranged on the PCB; both the power supply and the display LED are connected to the CPLD chip in a wiring manner; a golden finger is also arranged on the lower side of the PCB and connected to the CPLD chip in the wiring manner; a plurality of filter capacitors with different resistance values are also arranged between the power supply and the CPLD chip. Compared with the prior art, the mainboard failure diagnostic card disclosed by the utility model has the characteristics of being reasonable in design, smart in conception, convenient to use, low in manufacture cost, accurate in information display, flexible in power supply, high in practicability, wide in application range, liable to popularize and the like.
Description
Technical field
The utility model relates to field of computer technology, specifically a kind of practical failure diagnosis card for main board.
Background technology
Along with the arrival of information society, people are increasing to the demand of computer product, and in the time that computer product breaks down, we often need by checking that some status informations carry out failure judgement reason, trouble spot, location.But do not ring etc. cannot distinguish the phenomenon of equipment failure state time when operating system, blank screen, loudspeaker appear guiding in computer system, we have no way of doing it to phenomenon of the failure.Thereby therefore need the data message localization of faults that a diagnostic card can communication when obtaining with analysis of failure.
Post Card---POST card (PoweronSelfTest, Power-On Self-Test) just arise at the historic moment in this case, its principle of work is can not guide operating system, blank screen, loudspeaker not to ring etc. cannot distinguish equipment failure state time at PC, this card is inserted in expansion slot, according to the upper code showing of card, reason and position that contrast fault zoom table is found the represented fault of this code, but existing Post Card has the following disadvantages: Power supply exists defect, a general Power supply, the use underaction of adopting; Board Presentation Function is vulnerable to the impact of undesired signal and clutter, and diagnostic signal error is larger; Existing board is made expensive, and because the intelligent chip of installing on board is comparatively expensive, the transmission of data message is comparatively loaded down with trivial details, based on this, now provides a kind of novel failure diagnosis card for main board.
Summary of the invention
Technical assignment of the present utility model is to solve the deficiencies in the prior art, and a kind of failure diagnosis card for main board is provided.
The technical solution of the utility model realizes in the following manner, a kind of failure diagnosis card for main board, its structure comprises PCB circuit board, on this PCB circuit board, be provided with power supply, CPLD chip, show LED, described power supply, demonstration LED all connect up and connect this CPLD chip, downside at PCB circuit board is also provided with golden finger, and this golden finger wiring connects above-mentioned CPLD chip, between above-mentioned power supply and CPLD chip, is also provided with the filter capacitor that some resistances are different.By the setting of this CPLD chip, make the transmission of main board failure information more flexible, the convenient demonstration that shows LED; The golden finger of entirety arranges based on PCIE groove, easy to make, with low cost; Design filter capacitor, can unnecessary undesired signal and the clutter of elimination, ensures the accuracy of demonstration information.
As preferably, described power supply comprises two, and one is 5V power supply, and one is 3.3V power supply.This power supply the different electrical power demand that meets diagnostic card is set, practical.
The beneficial effect that the utility model compared with prior art produced is:
The features such as that a kind of failure diagnosis card for main board of the present utility model has is simple in structure, easy to use, be skillfully constructed, cost of manufacture is cheap, and demonstration information is accurate, and power supply is flexible, practical, applied widely, is easy to promote.
Brief description of the drawings
Accompanying drawing 1 is structural representation of the present utility model.
Mark in accompanying drawing represents respectively:
1, PCB circuit board, 2, CPLD chip, 3, show LED, 4, golden finger, 5, power supply, 6, filter capacitor.
Embodiment
Below in conjunction with accompanying drawing, a kind of failure diagnosis card for main board of the present utility model is described in detail below.
As shown in Figure 1, a kind of failure diagnosis card for main board is now provided, its structure comprises PCB circuit board 1, on this PCB circuit board 1, be provided with power supply 5, CPLD chip 2, show LED3, described power supply 5, demonstration LED3 all connect up and connect this CPLD chip 2, downside at PCB circuit board 1 is also provided with golden finger 4, and these golden finger 4 wirings connect above-mentioned CPLD chip 2, are also provided with the filter capacitor 6 that some resistances are different between above-mentioned power supply 5 and CPLD chip 2.
Described power supply 5 comprises two, and one is 5V power supply, and one is 3.3V power supply.
Except the technical characterictic described in instructions, be the known technology of those skilled in the art.
Claims (2)
1. a failure diagnosis card for main board, it is characterized in that: its structure comprises PCB circuit board, on this PCB circuit board, be provided with power supply, CPLD chip, show LED, described power supply, demonstration LED all connect up and connect this CPLD chip, downside at PCB circuit board is also provided with golden finger, this golden finger wiring connects above-mentioned CPLD chip, between above-mentioned power supply and CPLD chip, is also provided with the filter capacitor that some resistances are different.
2. a kind of failure diagnosis card for main board according to claim 1, is characterized in that: described power supply comprises two, and one is 5V power supply, and one is 3.3V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202653.3U CN203773535U (en) | 2014-04-24 | 2014-04-24 | Mainboard failure diagnostic card |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420202653.3U CN203773535U (en) | 2014-04-24 | 2014-04-24 | Mainboard failure diagnostic card |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203773535U true CN203773535U (en) | 2014-08-13 |
Family
ID=51290699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420202653.3U Expired - Fee Related CN203773535U (en) | 2014-04-24 | 2014-04-24 | Mainboard failure diagnostic card |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203773535U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589777A (en) * | 2015-12-28 | 2016-05-18 | 天津浩丞恒通科技有限公司 | Computer mainboard with failure diagnosis function and LPC interface mainboard failure diagnosis card |
-
2014
- 2014-04-24 CN CN201420202653.3U patent/CN203773535U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105589777A (en) * | 2015-12-28 | 2016-05-18 | 天津浩丞恒通科技有限公司 | Computer mainboard with failure diagnosis function and LPC interface mainboard failure diagnosis card |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20150424 |
|
| EXPY | Termination of patent right or utility model |