Monitor server hardware. Tools might include Device Manager, the Hardware Troubleshooting Wizard, and appropriate Control Panel

 Using Device Manager

If there is a problem with a device listed in device manager hardware tree, there should be a symbol indicating the type of the problem.

• A black exclamation mark on a yellow field indicates the device is in a problem state.
• A red cross mark indicates that the device is disabled.
• A blue "i" on a white field on a device resource indicates that the "Use Automatic Settings" feature is not enabled and the device is using manually selected resource. This does NOT mean it is in a problem state.
• A green questiong mark means a compatible device driver is installed, indicating all of the functionality of the device may not be available.

Error Codes Generated by Device Manager and possible resolution

• This device is not configured correctly. (Code 1)
• Update driver
• The driver for this device might be corrupted, or your system may be running low on memory or other resources. (Code 3)
• Uninstall and reinstall the driver
• This device cannot start. (Code 10)
• Update the driver, and then use Troubleshooting Wizard to solve the problem
• This device cannot find enough free resources that it can use. If you want to use this device, you will need to disable one of the other devices on this system. (Code 12)
• Two devices may be assigned the same I/O ports, interrupt or DMA channel, or, may be allocated not enough resources.
• Use the Device Manager to disable the confliting device and then start Troubleshooting Wizard
• This device cannot work properly until you restart your computer. (Code 14)
• Restart
• Windows cannot identify all the resources this device uses. (Code 16)
• Try manually assign resources to the device
• Reinstall the drivers for this device. (Code 18)
• Update driver or uninstall/reinstall the driver
• Windows cannot start this hardware device because its configuration information (in the registry) is incomplete or damaged. To fix this problem you can first try running a Troubleshooting Wizard. If that does not work, you should uninstall and then reinstall the hardware device. (Code 19)
• This can occur when more than 1 service is defined for a device.
• Restart with the Last Known Good Configuration
• Or edit the registry directly.
• Windows is removing this device. (Code 21)
• Wait a moment, refresh the tree view, if the device appears, restart computer.
• This device is disabled. (Code 22)
• Enable it
• This device is not present, is not working properly, or does not have all its drivers installed. (Code 24)
• This could be caused by bad hardware or new driver must be installed.
• The drivers for this device are not installed. (Code 28)
• Update Driver
• This device is disabled because the firmware of the device did not give it the required resources. (Code 29)
• Enable the device in the device's BIOS
• This device is not working properly because Windows cannot load the drivers required for this device. (Code 31)
• Update driver
• A driver (service) for this device has been disabled. An alternate driver may be providing this functionality. (Code 32)
• Upgrade or uninstall/reinstall the driver
• Windows cannot determine which resources are required for this device. (Code 33)
• Contact the vendor of the hardware
• Windows cannot determine the settings for this device. Consult the documentation that came with this device and use the Resource tab to set the configuration. (Code 34)
• Change hardware setting by setting jumpers or running a vendor supplied utility, then, manually allocate resources
• Your computer's system firmware does not include enough information to properly configure and use this device. To use this device, contact your computer manufacturer to obtain a firmware or BIOS update. (Code 35)
• Obtain a new bios from the vendor
• This device is requesting a PCI interrupt but is configured for an ISA interrupt (or vice versa). Please use the computer's system setup program to reconfigure the interrupt for this device. (Code 36)
• Use BIOS setup to configure IRQ reservation.
• Windows cannot initialize the device driver for this hardware. (Code 37)
• Uninstall/Reinstall the driver
• Windows cannot load the device driver for this hardware because a previous instance of the device driver is still in memory. (Code 38)
• Restart
• Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)
• Uninstall/Reinstall the driver
• Windows cannot access this hardware because its service key information in the registry is missing or recorded incorrectly. (Code 40)
•  Uninstall/Reinstall the driver
• Windows successfully loaded the device driver for this hardware but cannot find the hardware device. (Code 41)
• This occurs when Windows does not detect a nonPnP device
• If the device is removed, uninstall the driver, install the device, and then reinstall the driver
• If not, a newer version of the device may be needed
• Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system. (Code 42)
• Restart computer
• Windows has stopped this device because it has reported problems. (Code 43)
• Consult the documentation shipped with the device to find a solution
• An application or service has shut down this hardware device. (Code 44)
• Restart
• Currently, this hardware device is not connected to the computer. (Code 45)
  
• Reconnect the device or set the enviroment variable DEVMGR_SHOW_NONPRESENT_DEVICES to 0
• Windows cannot gain access to this hardware device because the operating system is in the process of shutting down. (Code 46)
• No resolution needed, it should be fine at next start
• Windows cannot use this hardware device because it has been prepared for safe removal, but it has not been removed from the computer. (Code 47)
• Unplug/Replug, or, restart computer to bring it online again
• The software for this device has been blocked from starting because it is known to have problems with Windows. Contact the hardware vendor for a new driver. (Code 48)
• Install a new updated driver
• Windows cannot start new hardware devices because the system hive is too large (exceeds the Registry Size Limit). (Code 49)
• Try uninstall any hardware device you are no longer using, or, if that does not solve the problem, you'll have to reinstall Windows