Cmos Clear; Front Side Bus Speed; Scsi Termination Enable/Disable - Supermicro SUPERSERVER 6021F User Manual

S
UPERSERVER 6021F User's Manual

CMOS Clear

Refer to Table 5-21 for the jumper
settings to clear CMOS.
remove the AC power cord from
the system before clearing CMOS.
NOTE: For an ATX power supply, you must
completely shut down the system, remove the
AC power cord and then use JBT1 to clear
CMOS. Replace JBT1 back to the pin 1-2 posi-
tion before powering up the system again. Do
not use the PW_ON connector to clear CMOS.

Front Side Bus Speed

CPU speed = FSB x Core/Bus ratio
The jumper settings for FSB Speed
are JP1 for theP3TDE6 (Table 5-22).
Core/Bus Ratio settings are de-
scribed in Section 2-7.
SCSI Termination Enable/
Disable
The SCSI Termination jumper JP60
allows you to enable or disable
termination for the SCSI connec-
tors. The normal (default)
position is open to enable SCSI
termination. See Table 5-23 for
jumper settings.
C M O S C le a r J u m p e r S e ttin g s
Always
Jumper
Position
Position
* N ote: T he Auto setting allows
the C PU to set the speed.
*Nores:
1. The auto setting allows the CPU to
set the speed.
2. If the FSB speed is 100MHz, JP63
should be set to "On".
5-20
T a b le 5 -2 1
(J B T 1 )
D efinition
1-2 N ormal
2-3 C M O S C lear
Position Position
1-2 2-3
T a b le 5 -2 2
J u m p e r S e ttin g s (J P 1 )
Jumper
D efinition
1-2 Auto
2-3 100 M H z
O F F 133 M H z
T a b le 5 -2 3
S C S I T e rm in atio n
E n a b le /D is a b le
J u m p e r S e tting s
(J P 6 0 , J P 6 4 )
Jumper
Position D efinition
O pen Enabled
C losed D isabled