Power Subsystem - HP Integrity BL860C i4 User's & Service Manual

Check either Yes or No. If No, include comment number or date.
27. Can cooling be maintained between 5°C (41 °F) and 35°C
(95 °F) (up to 1,525 m/5,000 ft)? Derate 1°C/305 m (34 °F/
1,000 ft) above 1,525 m/5,000 ft and up to 3,048 m/10,000
ft.
28. Can temperature changes be held to 5°C (9 °F) per hour
with tape media? Can temperature changes be held to
20°C (36 °F) per hour without tape media?
29. Can humidity level be maintained at 40% to 55% at 35°C
(95 °F) noncondensing?
30. Are air-conditioning filters installed and clean?
Storage
Number Area or Condition
31. Are cabinets available for tape and disc media?
32. Is shelving available for documentation?
Training
Number Area or Condition
33. Are personnel enrolled in the System Administrator's
Course?
34. Is on-site training required?

Power subsystem

The power subsystem is located on the system board. The BL860c i4 Server Blade receives 12 Volts
directly from the enclosure. The voltage is immediately passed through an E-fuse circuit, which will
immediately cut power to the blade if a short circuit fault or over current condition is detected. The E-fuse
can also be intentionally power cycled through the manageability subsystem. The 12V is distributed to
various points on the blade and is converted to lower voltages through power converters for use by
integrated circuits and loads on the blade.
14 Power subsystem
Comment or
Date
Yes No