HP D330 HP Business Desktop BIOS - Page 14

Serviceability - 5 beeps

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• S5-This state is often referred to as Soft Off. The computer is off. This state offers the slowest wakeup time and the greatest power savings (typically

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S5—This state is often referred to as Soft Off. The computer is off. This state offers the slowest
wakeup time and the greatest power savings (typically <2W).
To understand the cost savings, consider an example using the power difference between enabling
Suspend to RAM (power dissipation is 3W) versus simply allowing a system to idle (power dissipation
is 40W in a mainstream Pentium IV). In this scenario, assume users simply let their system idle when
they are not working. Calculate the cost savings during after-work hours (5pm to 8am) in an
enterprise with 1000 systems. Saving 37W for 15 hours/day at an average energy cost of 8.5
cents/kWh, for an average work year of 250 days, would result in a cost savings of $11,793.75
annually for an installation of 1000 systems.
Typically, computer users will also not power off their systems at the end of the work day due to the
inconvenience of waiting for the system to power up and complete the initial loading of their
operating system. In the Suspend to RAM state, HP Business Desktop computers are instantly
available. Users can touch the mouse, keyboard, or power button and have the unit ready for
interaction in approximately 2 seconds.
The HP BIOS has also been a key component in achieving power management accreditations such as
Energy Star, Blue Angel, and Federal Energy Management Program (FEMP) Standby Power
compliance (refer to
for more information on the FEMP). Both the
software image (operating system and applications) and the HP BIOS provide a cohesive power
management environment that is fully tested and robust. Helping to lower power costs, improve user
convenience, and increase product durability are all positive Total Cost of Ownership (TCO) impacts
of the HP BIOS.
Enabling future power savings
HP BIOS engineers are working constantly with partners such as Intel and Microsoft to help ensure
that HP Business Desktop computer designs will enable the latest processor and operating system
thermal and power management technologies. The HP BIOS also provides runtime power
management for some configurations that support processor throttling of frequency and voltage during
situations where the operating system detects excess computing capability for the tasks it needs to
perform. Runtime power management involves lowering the processor’s power requirements when the
computer is not executing processor intensive activities. The computer is completely on and responsive
to the user, but, when the processor is not fully-utilitized, it can be throttled to save up to 40% power
consumption without affecting the user’s productivity. Typically, this feature is available in high
performance processors, which can dissipate up to 80W idling at normal operating frequency and
voltage and significantly more in the working state.
The runtime power management feature can save
tens of KWHs per machine per year without sacrificing computing performance.
Serviceability
Unplanned downtime can be extremely costly to any business. The HP BIOS can play a key role in the
serviceability of the HP Business Desktop computer. Constant feedback from customers and field
service personal is integrated into each successive HP BIOS family, resulting in improved
serviceability and customer satisfaction. Some of the serviceability features in the HP BIOS are
problem diagnosis and resolution and detailed service information
Problem diagnosis and resolution
HP Business Desktop computers, designed with the HP BIOS, provide information to aid the user in
diagnosing problems. Visual alerts are produced by blinking the power LED light red instead of the
normal green color. Audio beep alerts are supported on computers containing a computer speaker.
These alerts allow the user, administrator, or service technician to diagnose problems quickly at the
component level and take effective action onsite. Issues can be diagnosed correctly the first time to
avoid random replacement of computer components and costly computer downtime. See the