After that, you're the computer maintenance engineer, 14th.

11th chapter compatibility or coordination of failure

An example of a definition

This type of failure is mainly due to the user additional Third-party software and hardware equipment caused by hardware and software failures.

This type of failure, in some of the previous types of failures have been partially mentioned, so some fault phenomena may be similar to the previous description of the fault diagnosis, can be referred to.

Second, possible phenomenon of failure

1, install the user's equipment or application, the system running unstable, such as: Panic or restart;

2, the user installed equipment can not work properly;

3, the application of user development can not work properly;

4, the user needs to configure the Lenovo Machine can not meet (such as the need to add large capacity memory, the need for multiple serial ports, etc.).

Iii. parts that may be involved

All possible parts or software. But the most common components that affect third-party applications should be: Motherboards, CPUs, memory, display cards, and peripherals for newer interfaces.

Iv. Points of judgement/order

1. Environmental inspection

1 Inspection of additional equipment, such as the production process of cards, for the process of rough board or equipment, it is easy to cause black screen, power does not work, the phenomenon of unstable operation;

2 Check that the appended memory is the same model as the original one. The different model one may cause the compatibility problem, causes the operation to be unstable, freezes and so on; the other is to be careful to modify the settings in the BIOS;

3 Update or additional parts, such as CPU, hard disk and other technical specifications can be compatible with the rest of the parts. Too new parts or specifications older parts will be incompatible with the original configuration. For example, older parts do not support power management so that when the system is running, using such a part will not work properly, or the entire system may not function properly.

2. Fault Judgment points

1 After the boot, you should first check the newly updated or appended parts, in the system before the start of the configuration list can appear. If not, check its installation and technical specifications;

2 If it does not show, run unstable or crash, etc., should first remove the updated or additional parts or equipment, to see whether the system back to normal working state, and carefully study the new equipment, parts of the technical manual, to understand the installation and configuration methods;

3 If the additional equipment is not properly installed, should check its technical manual to understand the correct installation methods, technical requirements, and use the latest version of the driver as much as possible. If not solved, should check the quality of the equipment and the original system work;

4 Check the new additions or updates between the part and the original part of the existence of the phenomenon of not sharing resources, that is, to adjust the resources of the corresponding components to check whether the failure disappeared, when not open, you can try to replace the installed slot location, or in the BIOS to change the allocation of resources;

5 Check if the BIOS caused a compatibility problem, this can be checked by updating the BIOS (note is not necessarily the latest version or later, you can reduce the version check);

6) To see if the jumper settings on the appended parts are appropriate and make the necessary modifications;

7 for the use of older boards or software, should pay attention to whether due to the speed mismatch and caused the work is not normal;

8 to check whether the failure disappears by changing the settings or services in the system. such as power management services, equipment parameter modification, etc.;

9 Check the original software and hardware whether there is poor performance, that is, by replacing the hardware or shielding the original program to check.