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Chapter 3 Hardware
22 Reference Manual ReadyBoard 800
CPU (U5)
The ReadyBoard 800 supports four Intel processor choices; high performance standard voltage
1.8 GHz Pentium M 745, Low Voltage (LV) 1.4 GHz Pentium M 738, Ultra Low Voltage (ULV) 1.0
GHz Celeron M 373, or Low Voltage (LV) 800 MHz Celeron M.
Celeron M Processors
The Celeron M Ultra Low Voltage (ULV) processor (Dothan core) at 800 MHz has 0 kB L2 Cache on
board, with a 400 MHz FSB (front side bus). The 800 MHz Celeron M processor uses 90 nm
architecture and requires a heatsink, but no fan.
The Celeron M 373 Ultra Low Voltage (ULV) processor (Dothan core) at 1.0 GHz has 512 kB L2 Cache
on board, with a 400 MHz FSB (front side bus). The 1.0 GHz Celeron M 373 processor uses 90 nm
architecture and requires a heatsink, but no fan.
Pentium M Processors
The Pentium M 738 Low Voltage (LV) processor (Dothan core) at 1.4 GHz has 2 MB L2 Cache on
board with a 400 MHz FSB (front side bus). The 1.4 GHz Pentium M 738 processor uses 90 nm
architecture and requires a heatsink, but no fan.
The Pentium M 745 standard voltage processor (Dothan core) at 1.8 GHz has 2 MB L2 Cache on board
with a 400 MHz FSB (front side bus). The 1.8 GHz Pentium M 745 processor uses 90 nm architecture
and requires a heatsink and +12 volt fan.
NOTE The CPU fan (J7) connector requires a +12 volt fan to operate
properly. The ReadyBoard 800 provides the pass through +12 volts
on the Power In (J2) connector to the CPU fan (J7) connector, the
PCI-104 connector (J3), and the LVDS connector (J14).
Memory
The ReadyBoard 800 memory (storage) consists of the following elements:
• DDR RAM SODIMM
• Flash memory
DDR RAM Memory (J22)
The ReadyBoard 800 supports a single 200-pin DDR SODIMM socket.
• SODIMM socket can support up to 1 GB of memory
• PC 2700 DDR 333 (333 Mbps, 166 MHz, 6 ns)
• +2.5V DDR RAM
NOTE Ampro recommends using PC 2700 DDR 333 (333 Mbps, 166
MHz, 6 ns), +2.5V, 200-pin, DDR RAM SODIMM for maximum
performance. The ReadyBoard 800 will operate acceptably with a
PC 2100 DDR 266 (266 Mbps, 133 MHz, 7.5 ns) SODIMM.
Flash Memory (U10)
There is an 8-bit wide, 512 kB flash device used for system BIOS and it is connected to the LPC Bus.
The BIOS is re-programmable and the supported features are detailed in Chapter 4, BIOS Setup Utility.