Lenovo ThinkCentre A57 User Manual - Page 12

Input/output, features, Expansion, Power, Security - watts

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v Wake on Ring (in the Setup Utility program, this feature is called Serial Port Ring Detect for an external modem) v Remote Administration v Automatic power-on startup v System Management (SM) BIOS and SM software v Ability to store power-on self-test (POST) hardware test results Input/output features v 25-pin Extended Capabilities Port (ECP)/Extended Parallel Port (EPP) v 9-pin serial port v USB connectors (two on the front panel and the number of the rear panel USB connectors varies by model) v Standard mouse connector v Standard keyboard connector v Ethernet connector v VGA monitor connector v Three audio connectors (audio line-in, audio line-out, and microphone) on the rear panel (some models) v Two audio connectors (microphone and headphone) on the front panel (some models) Expansion v Three drive bays (some models) v Five drive bays (some models) v PCI adapter card slot (one or more varies by model) v PCI Express adapter card slot (varies by model) Power v 280 Watt, 310 Watt manual and auto v 280 Watt, 220 Watt manual and auto v 280 Watt, power supply with auto-sensing voltage-selection switch v Automatic 50/60 Hz input frequency switching v Advanced Configuration and Power Interface (ACPI) support Security features v User and administrator passwords for BIOS access v Support for the addition of an integrated cable lock (Kensington lock) v Keyboard with fingerprint reader (some models, see the ThinkVantage Productivity Center program for more information) v Cover presence switch (intrusion switch, some models) v Startup sequence control v Startup without diskette drive, keyboard, or mouse v Diskette and hard disk drive I/O control v Serial and parallel port I/O control 4 User Guide

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v
Wake
on
Ring
(in
the
Setup
Utility
program,
this
feature
is
called
Serial
Port
Ring
Detect
for
an
external
modem)
v
Remote
Administration
v
Automatic
power-on
startup
v
System
Management
(SM)
BIOS
and
SM
software
v
Ability
to
store
power-on
self-test
(POST)
hardware
test
results
Input/output
features
v
25-pin
Extended
Capabilities
Port
(ECP)/Extended
Parallel
Port
(EPP)
v
9-pin
serial
port
v
USB
connectors
(two
on
the
front
panel
and
the
number
of
the
rear
panel
USB
connectors
varies
by
model)
v
Standard
mouse
connector
v
Standard
keyboard
connector
v
Ethernet
connector
v
VGA
monitor
connector
v
Three
audio
connectors
(audio
line-in,
audio
line-out,
and
microphone)
on
the
rear
panel
(some
models)
v
Two
audio
connectors
(microphone
and
headphone)
on
the
front
panel
(some
models)
Expansion
v
Three
drive
bays
(some
models)
v
Five
drive
bays
(some
models)
v
PCI
adapter
card
slot
(one
or
more
varies
by
model)
v
PCI
Express
adapter
card
slot
(varies
by
model)
Power
v
280
Watt,
310
Watt
manual
and
auto
v
280
Watt,
220
Watt
manual
and
auto
v
280
Watt,
power
supply
with
auto-sensing
voltage-selection
switch
v
Automatic
50/60
Hz
input
frequency
switching
v
Advanced
Configuration
and
Power
Interface
(ACPI)
support
Security
features
v
User
and
administrator
passwords
for
BIOS
access
v
Support
for
the
addition
of
an
integrated
cable
lock
(Kensington
lock)
v
Keyboard
with
fingerprint
reader
(some
models,
see
the
ThinkVantage
Productivity
Center
program
for
more
information)
v
Cover
presence
switch
(intrusion
switch,
some
models)
v
Startup
sequence
control
v
Startup
without
diskette
drive,
keyboard,
or
mouse
v
Diskette
and
hard
disk
drive
I/O
control
v
Serial
and
parallel
port
I/O
control
4
User
Guide