Diagnosis And Exclusion Instructions
USB interface problem
Description: Unable to use devices with a USB interface.
Operation steps:
- Make sure operation system on server supports USB devices.
- Make sure system has been installed with correct USB device driver.
- Power off the server, and then power on again to test.
- Make sure whether the USB device is normal when connecting to other hosts.
- If the USB device is normal when connecting to other hosts, the server may be abnormal, please contact the distributor technical support; if the USB device turns out to be abnormal when connecting to other hosts, change the USB device
Keyboard and mouse are not available
Description: Neither keyboard nor mouse could be operated normally.
Operation steps:
- Make sure whether cable connection of keyboard or mouse is correct and firm.
- Test other parts to verify whether it is a mouse or keyboard fault.
- Retest the machine via power on/off.
- Reboot and enter cmos or raid configuration interface to test keyboard or mouse performance, when tested in a non-system situation, if keyboard or mouse performance turns out to be normal, a system fault could be considered; if keyboard or mouse fault still exists, a mainboard interface fault could be considered, and you could contact the distributor technical support.
Memory capacity incomplete
Description: Memory capacity viewed via the operation system does not correspond with physical memory capacity.
Operation steps:
- Ensure all memories have been correctly installed in place, and memories of correct type have also been configured.
- Enter BIOS setup to view memory capacity, if it could be completely identified in BIOS setup, this may lie in the limitation on memory capacity set by the operation system. Otherwise, please contact the distributor customer service.
Front panel status indicator alarms
Description: The server is under normal operation, but system status indicator on front control panel flashes or the red indicator is on to alarm.
Operation steps:
Please check whether all power module indicators are green constant, if so, your could login BMC web interface to collect logs, and contact the distributor customer service.
No display if power on
Description: After pressing the power button, server front control panel indicator is on, but there’s no output on the display.
Operation steps:
- Firstly check whether VGA port on display and server is connected normally;
- Test on another display
- If no solution could be achieved via the above operation, please contact the distributor customer service.
Power module indicator off or red indicator on
Description: The machine is under normal operation, but a certain power module indicator is off or the red light is on.
Operation steps:
- Firstly check whether all power cables are normal, and plug in power cables again;
- If fault still exists, plug in and off power module again;
- If shutdown is allowed, you could exchange these 2 power modules, to judge whether it is a power module fault.
- If no solution could be achieved via the above operation, please contact the distributor customer service.
Diagnosis and exclusion on power-on failure at startup
Description: After pressing the power button, server front control panel indicator (power-on status indicator, hard disk status indicator) is off, meanwhile, no KVM (display) output is displayed, and server chassis fan does not rotate.
Operation steps:
- Verify whether machine power supply is normal or not: If power module indicator is on, it indicates normal power supply; if power module indicator is off, please check if power supply is normal;
- If power supply is normal, plug in and off the power module again to test, and then start for verification;
- If there’s a machine and a power module of the same type, you could change the power module to test whether there’s a power module fault;
- If no solution could be achieved via the above operation, please contact the distributor customer service.
