Intel SBX82 User Guide - Page 27

Understanding the control panel and LEDs This section describes the controls and LEDs on your SBCE unit. ✏ NOTE The illustrations in this document might differ slightly from your hardware. ✏ NOTE The control panel door is shown in the closed (normal) position in the illustration. To access the power-control button, you must open the control panel door. CD/diskette/USB select button Keyboard/mouse/video select button Activity LED Location LED Information LED Blade-error LED NMI Power-control button Power-on LED Keyboard/mouse/video (KVM) select button: Press this button to associate the keyboard port, mouse port, and video port with this blade server. The LED on this button flashes while the request is being processed, then is lit when the ownership of the keyboard, mouse, and video has been transferred to this blade server. It can take approximately 20 seconds to switch the keyboard, video, and mouse control to the blade server. Although the keyboard that is attached to the SBCE unit is a PS/2*-style keyboard, communication with it is through the USB. The operating system in the blade server must provide USB support for the blade server to recognize and use the keyboard and mouse. The SBCE unit uses USB for internal communication with these devices. When you are running an operating system that does not have USB device drivers, such as in the following situations, the keyboard responds very slowly: • Running the blade server integrated diagnostics • Running a BIOS update diskette on a blade server • Updating the diagnostics on a blade server • Running the Broadcom firmware CD for a blade server If there is no response when you press the keyboard/mouse/video select button, you can use the management-module Web interface to determine whether local control has been disabled on the blade server. 13