Intel Pentium III Processor/840, Manual, Page: 56 / 151

4-20 Intel
®
Pentium
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III Processor/840 Development Kit Manual
Hardware Reference
4.10.10 FWH TBL (J10A1)
This jumper provides write protection for the top block of memory in the FWH.
4.10.11 Speaker (J11T1)
The speaker jumper allows the system speaker output (PC Beep) to be routed to the on-board
transducer or to the AC’97 Codec.
4.10.12 P0 Voltage Regulator Module Voltage ID
(J11N3, J11N2, J11N1, J11P2, J11P1)
The P0 VID jumpers allow the CPU’s core voltage to be altered. Do not modify this jumper setting;
the processor core voltage is selected by the processor.
Warning: Incorrectly setting the VID jumpers can result in permanent damage to the processor.
4.10.13 P1 Voltage Regulator Module Voltage ID
(J11P4, J11P3, J11R3, J11R2, J11R1)
The P1 VID jumpers allow the CPU’s core voltage to be altered. Do not modify this jumper setting;
the processor core voltage is selected by the processor.
Warning: Incorrectly setting the VID jumpers can result in permanent damage to the processor.
4.10.14 Push Button Switches
There are two push button switches on the evaluation board, labeled S11P1 and S11R1.
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S11P1 is the reset switch.
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S11R1 is the power switch.
Depending on the BIOS configuration the power switch may need to be held down for
approximately five seconds before the board powers down. When powered down, the board will
still have Standby power supplied by the WTX power supply.