IBM 4190 User Manual page 13

Statement 8:
CAUTION:
Never remove the cover on a power supply or any part that has the following
label attached.
Hazardous voltage, current, and energy levels are present inside any
component that has this label attached. There are no serviceable parts inside
these components. If you suspect a problem with one of these parts, contact
a service technician.
Statement 26:
CAUTION:
Do not place any object on top of rack-mounted devices.
This server is suitable for use on an IT power-distribution system whose maximum
phase-to-phase voltage is 240 V under any distribution fault condition.
xi
Safety