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Power Information
Intel® Server Board SE7505VB2
Figure 13. Turn on / off Timing
Table 73. Turn On / Off Timing
PWOK
5VSB
PSON
T
sb_on_delay
T
AC_on_delay
T
pwok_on
T
pwok_holdup
T
pson_on_delay
T
sb_on_delay
T
pwok_on
T
pwok_off
T
pwok_off
T
pson_pwok
T
pwok_low
T
sb_vout
AC turn on/off cycle
PSON turn on/off cycle
AC Input
Vout
T
vout_holdup
Item
Description
Min
Max
Units
T
sb_on_delay
Delay from AC being applied to 5VSB being within regulation.
1500 msec
T
ac_on_delay
Delay from AC being applied to all output voltages being within regulation.
2500 msec
T
vout_holdup
Time all output voltages stay within regulation after loss of AC.
18
msec
pwok_holdup
Delay from loss of AC to de-assertion of PWOK
17
msec
T
pson_on_delay
Delay from PSON
#
active to output voltages within regulation limits.
5
400
msec
T
pson_pwok
Delay from PSON
#
deactive to PWOK being de-asserted.
50
msec
T
pwok_on
Delay from output voltages within regulation limits to PWOK asserted at turn on. 200
1000 msec
T
pwok_off
Delay from PWOK de-asserted to output voltages (3.3V, 5V, 12V, -12V)
dropping out of regulation limits.
1 msec
T
pwok_low
Duration of PWOK being in the de-asserted state during an off/on cycle using
AC or the PSON signal.
100
msec
T
sb_vout
Delay from 5 V SB being in regulation to O/Ps being in regulation at AC turn on. 50
1000 msec
T
Revision
1.2
Intel part number C32194-002
98