Specifications

PC/II+p Board Technical Reference Manual 90
MT002615 ©1999-2001, Megatel Computer Corporation
11.3 PC/II+p Order Options
Options are listed in the following sub-sections, in alphabetical order of OPTION LETTER.
All features not listed in this section are shipped on all boards (for example, USB, IDE, Floppy, Keyboard, &
Mouse interfaces and others). Some features require the selection of Option "Y" and Option "Z" (Mass I/O
connectors) – refer to feature sections in this document for more information on use of the Mass I/O
connector, or to section 9
of this document, for a complete list of peripheral groups that require a Mass I/O
connector to be selected.
The following options are given below:
Option a
Watchdog Enable
Option b
Power Supply Arrangement
Option c
Panel ENAVEE Polarity
Option E
Ethernet Option
Option H
Flash Disk-on-Chip® Socket
Option K
Real-Time Clock & Battery
Option M
Memory - SDRAM
Option P
Processor
Option S
Serial I/O
Option V
Video
Option X
PC104
Option Y
MASS I/O 5x11
Option Z
MASS I/O 5x22
11.3.1 Option a – Watchdog
0 NONE
1 JUMPER ONLY
Watchdog Jumper Installed, but Jumper Socket is NOT installed – Watchdog is Disabled on
the Shipped board. To Enable the watchdog, insert a jumper socket on J014, and enable
the watchdog by calling the Enable Watchdog BIOS function.
2 JUMPER & SHUNT
Watchdog Jumper Installed, and Jumper Socket is Installed – Watchdog is ready to be
used. As shipped, the BIOS will initially leave the watchdog in disabled state. TO use
Watchdog, call the Enable Watchdog BIOS function.
NOTES. Refer to Watchdog description in section 7.29.
11.3.2 Option b – Power Supply Arrangement
1 Single +5v 5% Supply; +5v supplied through J907
NOTES: A single power supply is required; always use code 1 for this option. On-board power supplies are
shipped, for the +3.3v, +2.5v and +1.9v (typical) power planes used by the Pentium- and K6-based board.