Conflicts between computer hardware resources and Solutions

A typical manifestation of hardware resource conflicts: When you add new hardware or after adding new hardware, the system often crashes and black screens for no reason; when you start, the system enters the Security Mode for no reason; the sound card and mouse cannot work normally or go on strike. When you press and hold the Alt key and double-click my computer icon to view the system properties, an exclamation point appears. The printer and the drive are not working properly. Of course, computer viruses cannot be ruled out, because some of them may have similar symptoms during attacks, so they cannot be generalized.

The main cause of hardware conflicts: When you add new hardware, the new hardware occupies the IRQ interrupt, DMA channel, I/O address, and other computer resources of the original device, there is a resource conflict between the old and new hardware. This will result in the failure of one or more hardware devices to work normally or the instability of the system.

How to check resource conflicts: press the "Alt" key and double-click "my computer/System Properties" with the mouse to view the working status of the hardware device. In general, if there is a problem with the system, there are usually three kinds of prompts: 1. After formatting the hard disk and reinstalling the system, there is a yellow "?". It indicates a hardware driver error or resource conflict. 2. When you add new hardware to your system, a blue circle "!" appears. . It means that the device can basically be used, but the system considers it problematic and can still work normally. 3. When new hardware is added to the computer system, a severe conflict occurs, and the red "X" is displayed. It means that the device cannot work or does not exist. It will often enable the system to start in "safe mode" or remind you to search for new hardware at startup.

I personally know that the hardware that causes computer hardware resource conflicts is mainly between the PCI1 slot or between the PCI slot and the mouse interface, COM1 and COM2, and between the ISA slot and the LPT1 interport of the printer. The conflict between the video card and the motherboard is good judgment. Generally, the system often starts in "safe mode" or often reminds you to search for new hardware at startup, and often reminds you to search for the latest driver of the video card. For example, an I740 video card conflicts with a VIA693 chip motherboard. There are also conflicts between the card and the PCI sound card, but such conflicts are rare.

Hardware resource conflicts are not difficult to solve, but the preferred solution is to replace the hardware that causes the conflicts. If the conditions are not allowed, you have to use the following methods to solve the problem.

I. Change hardware resource settings

Step 1: Click Start/set/control panel and double-click the system/Device Manager tab. Click a device with a problem and click "properties. Enter the property settings window for the device, and then select the "Resources" tab; record problematic IRQ interruptions, I/O addresses, and DMA channels on the resources tab as backups.

Step 2: Modify the hardware resource configuration. On the "Resources" tab in the property settings window of the device, select manual configuration. Before configuration, we should first understand some hardware knowledge and usage of hardware resources. In general, a large resource-consuming user should first push the sound card, which occupies at least One IRQ interrupt, two DMA channels and multiple I/O addresses, followed by scsicard, it occupies part of the I/O address, an IRQ interrupt, and a DMA channel, and the MODEM card and NIC are both large system resource owners. When modifying the hardware resource configuration, we should first find the faulty device. Generally, in the device manager window of the System Properties, you will find the three prompts mentioned above. Select a solution for each prompt.

The first is the yellow "?". For such a prompt, you must first download the latest driver of the device online. After the download, delete the device in the system properties/Device Manager window, and click Refresh in the system properties/Device Manager window. Follow the prompts to reinstall the driver. Then, look at the yellow "?" in the "System Properties/Device Manager" window. Whether it still exists. Strictly speaking, however, this type of conflict does not belong to a real conflict because the system does not correctly identify the hardware or the driver is incorrect. There are also exceptions, that is, conflicts between the driver and the system software. Generally, upgrading the driver can solve this problem.

Type 2: Blue "!" with a circle . This prompt indicates that the hardware works and the driver is correctly installed, but part of the device conflicts with other hardware in the system. In general, you can replace the slots of the hardware to solve this conflict. I have encountered an instance where the PCI 64/128 sound card conflicts with the Acer3D mouse. I used two methods to solve the conflict. In the system properties/Device Manager window, select a device with a problem, click Properties, and select the resources tab. Remove the check box before "use automatic settings", select the faulty device, and click "change settings. In the displayed device Properties window, select a value that does not conflict with each other and click OK. After the device is restarted, the problem is resolved. Method 2: In BIOS, changing the device interruption can also solve the problem.

Third: red "X. Indicates that the hardware is damaged or there is a serious conflict between the hardware and the system. It cannot be used properly now. Changing the hardware slot can also solve this problem. There is an example: I used the Microstar 6199VA motherboard. At that time, the PCI1 slot was inserted with an innovative PCI64 sound card, which conflicted with the sound card when I added a "kingnet overlord" MODEM card. After the slot is changed repeatedly, the conflict is resolved. Some non-plug-and-play devices can resolve conflicts by setting jumpers on the board. For example, some old SCSI hard disk interface cards can solve the conflict by setting the jumper on the scsicard. You can also modify the IRQ interrupt, DMA channel, and I/O address values of the device in the system properties/Device Manager window to solve the problem.

Ii. Change the slot

Replacing the slot is a simple and effective method. As we all know, the compatibility of the VIA motherboard is not very good, so friends who use the VIA chip motherboard should pay attention to compatibility issues when purchasing hardware. If your motherboard has five PCI slots, when you use more than two PCI devices, try not to use the PCI1 slots to avoid conflicts. When you add a new device, you should also read the device manual in detail.

3. Set BIOS

When neither of the above methods can solve your conflict problem, you can try to shield some unused device ports in the BIOS, such as "Serial Port (COM1, COM2), parallel port (LPT1) and infrared interfaces. You can also shield the USB port when necessary. You can also set the pnp OS Installed in the BIOS to Yes, which allows the operating system to reset the interruption.