FIC a440 Service Manual
Hardware Functional Overview
4-10
FIC A440 Series Service Manual
- Microsoft Windows 98, Windows NT, Windows 95 and plug and play BIOS
compliant
• Integrated I/O APIC (Advanced Peripheral Interrupt Controller) (CG Silicon)
• Built-in NAND-tree pin scan test capability
• 0.35um, 3.3V, low power CMOS process
• Single chip 27x27 mm, 352 pin BGA
4.6
4.6
4.6
4.6 Clock Frequency Generator
Clock Frequency Generator
Clock Frequency Generator
Clock Frequency Generator
The notebook utilizes the ICWORK chip to supply the system clock needed to run the
computer. The following are the available clock frequencies:
computer. The following are the available clock frequencies:
• System clock:
- Clock generator support:
66/100 MHz for Pentium IIII Mobile CPU
- 30/33 MHz for PCI device bus clock use
- 48 MHz for VT82C686A
- 14.318 MHz for VT82C686A refresh use
- 48 MHz for VT82C686A
- 14.318 MHz for VT82C686A refresh use
• 14.318 MHz XTAL for ICWORK 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
4.7
4.7
4.7 Cache
Memory
Cache Memory
Cache Memory
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 256KB 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.
the cache on-die (meaning it is combined with the CPU into one component), Intel eliminates
the need for separate components. The 256KB 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
4.8
4.8
4.8 System
Mem
System Mem
System Mem
System Memory
ory
ory
ory
The memory subsystem, implemented on the motherboard, includes System and Video
memory. The VIA VT8601 System Controller chip provides primary control for the system
memory.
memory. The VIA VT8601 System Controller chip provides primary control for the system
memory.
4.8.1 System
Memory
The notebook offers two (2) 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 16MB, 32MB, 64MB, and 128MB sizes. Memory modules are 3.3V
SDRAM type.
sockets for main memory configuration. The memory sockets accept any standard 144-pin
SODIMM modules at 16MB, 32MB, 64MB, and 128MB sizes. Memory modules are 3.3V
SDRAM type.
4.8.2 Video
Memory
The video memory (frame buffer) of the notebook is shared from the system main memory
using Shared Memory Architecture (SMA) design of the integrated VGA controller. The
frame buffer size can be set to either 4MB or 8MB from the CMOS Setup program. With
4MB, the notebook can support display resolutions of up to 1024x768 at 16M color (TFT
LCD). The default frame buffer size is 8MB.
using Shared Memory Architecture (SMA) design of the integrated VGA controller. The
frame buffer size can be set to either 4MB or 8MB from the CMOS Setup program. With
4MB, the notebook can support display resolutions of up to 1024x768 at 16M color (TFT
LCD). The default frame buffer size is 8MB.