Circuit module

1. A circuit module, including:

a substrate, having a PCI-E strip, the PCI-E strip for being inserted into and electrically connected with a PCI-E slot;

at least one LED (light emitting diode), disposed at a side of the substrate opposite to the PCI-E strip, electrically connected with the PCI-E strip;

a light guide member, being pervious to light, at least corresponding to the at least one LED.

2. The circuit module of claim 1 , wherein the substrate is further provided with a processing unit, the processing unit is electrically connected with the PCI-E strip and the at least one LED, and the processing unit is configured to control the at least one LED connected or non-connected electrically with the PCI-E strip.

3. The circuit module of claim 2 , wherein the processing unit includes a frequency conversion circuit electrically connected with the at least one LED and the PCI-E strip.

4. The circuit module of claim 1 , wherein the light guide member is provided with a first recess, the substrate is at least partially received in the first recess, and the first recess covers the at least one LED.

5. The circuit module of claim 4 , wherein the light guide member is further provided with at least one second recess communicating with the first recess, and the at least one LED is at least partially received in the at least one second recess.

6. The circuit module of claim 1 , further including at least one housing, the at least one housing at least covers two corresponding sides of the substrate and the light guide member.

7. The circuit module of claim 6 , wherein respective one of the two corresponding sides of the substrate is attached with the at least one housing with an adhesive layer.

8. The circuit module of claim 6 , wherein the at least one housing is provided with at least one through hole corresponding to the light guide member.

9. The circuit module of claim 1 , further includes at least one electric device disposed on the substrate, and the electric device is electrically connected with the PCI-E strip.

10. The circuit module of claim 9 , wherein the at least one electric device includes at least one of a graphic processing module and a display processing module.

11. The circuit module of claim 1 , wherein the substrate has at least one penetrating hole, and at least one said LED is received in one of the at least one penetrating hole.

12. The circuit module of claim 1 , wherein the PCI-E strip is a PCI-E x1 strip, PCI-E x2 strip, PCI-E x4 strip, PCI-E x8 strip or PCI-E x16.

13. A circuit module, including:

a substrate, having a PCI strip, the PCI strip for being inserted into and electrically connected with a PCI slot;

at least one LED, disposed at a side of the substrate opposite to the PCI strip, electrically connected with the PCI strip;

a light guide member, being pervious to light, at least corresponding to the at least one LED.