User Guide
Hardware Functional Overview
FIC MD02 Service Manual 4-13
The RTC also supports a date alarm that allows for scheduling a wake up event up to 30
days in advance, rather than just 24 hours in advance.
4.6 Clock Frequency Generator
The notebook utilizes the IMI CY28346 chip to supply the system clock needed to run the
computer. The following are the available clock frequencies:
System clock:
Clock generator IMI CY28346 support:
- 66/100 MHz for Pentium III Mobile CPU
- 30/33 MHz for PCI device bus clock use
- 48 MHz for PIIX4M
- 14.318 MHz for PIIX4M refresh use
• 14.318 MHz XTAL for Clock Generator use
•
32.768 KHz XTAL for RTC real time clock
•
8.0 MHz XTAL for K/B controller use
•
14.318 MHz OSC for sound blaster use
4.7 Cache Memory
The primary (L1) and secondary (L2) level cache are integrated on the CPU. By
incorporating the cache on-die (meaning it is combined with the CPU into one component),
Intel eliminates the need for separate components. The 512KB on-die L2 cache provides
three (3X) times faster processor access, resulting in significant improvements in
performance. Likewise, an integrated cache means a reduction of connections resulting in
increased reliability.
4.8 System Memory
The memory subsystem, implemented on the motherboard, includes System and Video
memory. The Intel 852GM System Controller chip provides primary control for the system
memory.
4.8.1 System Memory
The notebook offers two 64-bit SODIMM (Small Outline Dual Inline Memory Module)
sockets for main memory configuration. The memory sockets accept any standard 144-pin
SODIMM modules at 128MB, 256MB,512MB and 1GMB sizes. Memory modules are DDR
200/266 SDRAM type.
4.8.2 Video Memory
The video memory of the notebook is using share system memory with 8~32MB UMA
video memory that can support display resolutions of up to 1024 x 768 at 32-bit 16M color
(TFT LCD).
4.9 System BIOS
The notebook utilizes the Phoenix BIOS 4.0 Release 6.0 (Basic I/O System) that contains
both the main system BIOS and the VGA BIOS with Shadow BIOS capability. It utilizes
Flash EPROM BIOS that allows instant erasing and programming without replacing the
EPROM chip.
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