
Electrical Specifications Intel® Server Board Set SE8500HW4
Revision 1.0
Intel order number D22893-001
60
Table 35. Typical Power-Down Timings
Ref Description Max Typical Min
t1 Time from front-panel power button push, to BMC asserting the power button to the
chi
set. BMC debounces the
ower button in
ut for 50ms
1s 90ms 50ms
t2 Time from BMC asserting power button to chipset, until chipset responds with
SLP
S5
L. De
endent on chi
set setu
.
5s 4.5s –
t3 Time from when SLP_S5_L is asserted, to when BMC deasserts PS_ON_L to
complete system power-off.
1s 160ms 50ms
t4 Time from BMC deasserting D2D enable, to when it deasserts PS_ON_L to
complete system power-off.
– 100µs 0µs
8.3 Reset
Figure 16 and Table 36 illustrate the reset routing in the Intel
®
Server Board Set SE8500HW4.
VID_PCI_RST_N
XDP1
XDP2
ICH5
NB
RESET BUTTON
FWH1
FWH2
SIO
PLD 1
PLD 3
PLD 1
Proc1
Proc2
Proc3
Proc4
PB1_RESET_N
PB0_RESET_N
IMI CONN 1
IMI CONN 2
IMI CONN 3
IMI CONN 4
IMI Hotplug
IMI_A_ISO_RST_N
IMI_B_ISO_RST_N
IMI_C_ISO_RST_N
IMI_D_ISO_RST_N
Power
Connector
PS1_PWROK
LEVEL
TRANSLATOR
OR
GATE
PB1_RESET
PB0_RESET
IMI_A_RST_N
IMI_D_RST_N
IMI_B_RST_N
IMI_C_RST_N
IMI<D:A>_RST_EN_N
NB_RESETI_N
ITP_DBR_RESET_N
FP_RST_BTN_N
LPC_FWH_LRESET_N
LPC_SIO_LRESET_N
SIO_VID_RST
Front Panel
Connector
Video
PCI_IDE_RST_N
PXH
IOP332
PXH_RESETI_N
IOP332_RESETI_N
NB_R_RESETI_N
PCI_RESET_N
ICH5_SYS_RST_N
ITP_CPU_RESET_N
BUFFER
PCI_RST_BUFF1_N
SIO_NIC_RST
PS2_PWROK
Network
PX2B_RST_N
NIC_RST_N
Figure 16. Reset Block Diagram
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