Lenovo BladeCenter HS23 7875 Problem Determination And Service Manual page 12

Rack Safety Information, Statement 2
DANGER
• Always lower the leveling pads on the rack cabinet.
• Always install stabilizer brackets on the rack cabinet.
• Always install servers and optional devices starting from the bottom of the rack cabinet.
• Always install the heaviest devices in the bottom of the rack cabinet.
UL regulatory information
This device is for use only with supported blade chassis.
x
BladeCenter HS23 Blade ServerProblem Determination and Service Guide