Clear Cmos Jumper: Jbat1; Pci Express Slots; Pci (Peripheral Component Interconnect) Slots; Pci Interrupt Request Routing - MSI MS-7258 Instruction Manual

Clear CMOS Jumper: JBAT1

There is a CMOS RAM on board that has a power supply
from external battery to keep the data of system
configuration. With the CMOS RAM, the system can
automatically boot OS every time it is turned on. If you want
to clear the system configuration, use the JBAT1 (Clear CMOS Jumper) to clear data. Follow the
instructions in the image to clear the data.
MSI Reminds You...
You can clear CMOS by shorting 2-3 pin while the system is off. Then return to 1-2 pin position.
Avoid clearing the CMOS while the system is on, which will damage the mainboard.

PCI Express Slots

The PCI Express
high-bandwidth, low pin count, serial,
interconnect technology,
highest performance desktop platforms
utilizing the Intel Pentium 4 processor with
HT Technology.
PCI Express architecture provides a high
performance I/O infrastructure for Desktop Platforms with transfer rates starting at 2.5 Giga
transfers per second over a PCI Express x1 lane for Gigabit Ethernet, TV Tuners, 1394
controllers, and general purpose I/O. Also, desktop platforms with PCI Express Architecture will
be designed to deliver highest performance in video, graphics, multimedia and other
sophisticated applications. Moreover, PCI Express architecture provides a high performance
graphics infrastructure for Desktop Platforms doubling the capability of existing AGP 8x designs
with transfer rates of 4.0 GB/s over a PCI Express x16 lane for graphics controllers.
MSI Reminds You...
You can insert the expansion cards to meet your needs. When adding or removing expansion
cards, make sure that you unplug the power supply first.

PCI (Peripheral Component Interconnect) Slots

The PCI slots allow you to insert the expansion cards
to meet your needs. When adding or removing
expansion cards, make sure that you unplug the
power supply first. Meanwhile, read the documentation for the expansion card to make any
necessary hardware or software settings for the expansion card, such as jumpers, switches or
BIOS configuration.

PCI Interrupt Request Routing

The IRQ, abbreviation of interrupt request line and pronounced I-R-Q, are hardware lines over
which devices can send interrupt signals to the microprocessor. The PCI IRQ pins are typically
connected to the PCI bus INT A# ~ INT D# pins as follows:
Order1
PCI Slot 1 INT B#
PCI Slot 2 INT C#
PCI Slot 3 INT D#
slots, as a
support Intel
Order2 Order3
INT C# INT D#
INT D# INT A#
INT A# INT B#
1
PCI Express X 16 slot
PCI Express X 1 slot
Order4
INT A#
INT B#
INT C#
9
2 3 1 2 3
Keep Data
1 2 3
Clear Data