M o t h e r b o a r d
OWNER’S HANDBOOK 5/3
Microprocessor
The motherboard supports a single Pentium II processor operating
at any of the Pentium II processor speeds, voltages, and bus
frequencies. The processor is packaged in a Single Edge Contact
(S.E.C.) cartridge. The cartridge includes the processor core,
second-level cache subsystem, thermal plate, and back cover.
Second level cache memory
The second-level cache is located in the S.E.C. cartridge. The cache
includes synchronous pipelined burst static RAM (PBSRAM) and
tag RAM. There can be two or four PBSRAM components
totalling 512 KB or 1024 KB in size. All supported onboard
memory is cacheable.
PCI enhanced IDE interface
The PCI enhanced IDE interface handles the exchange of
information between the processor and peripheral devices like hard
disks and add-in boards inside the computer. The interface
supports:
Up to four IDE devices such as hard drives
ATAPI devices
PIO mode 3 and PIO mode 4 devices
Logical block addressing (LBA) of hard drives larger than
528
MB and extended cylinder head sector (ECHS)
translation modes
Support for laser servo (LS-120) drives
Input/Output (I/O) controller
The I/O controller handles the exchange of information between
the processor and external devices like the mouse and keyboard or a
printer that are connected to the computer. The controller features
the following:
Integrated keyboard and mouse controller
Industry standard diskette drive controller
