CHAPTER 2 –Hardware Installations
8SPI-8450-LLVA
2.2 CPU Installation:The SPI-8450-LLVA Industrial CPU Card supports a single Intel 478pin FC-PGA2
type Pentium 4 or Celeron processor. The processor’s VID pins automatically program the
voltage regulator on the CPU card to the required processor voltage. The host bus speed is
automatically selected. The processor connects to the CPU card through the 478-pins socket.
The CPU card supports the processors listed in table below:
Celeron processor
Host Bus frequency Cache size
400MHz 128KB
Pentium 4 processor
Host Bus frequency Cache size
400MHz / 533MHz 512KB
The socket-478 comes with a lever to secure the processor. Make sure the notch on the
corner of the CPU corresponds with the notch on the inside of the socket.
After you have installed the processor into the socket 478, check if the configuration
setup for the CPU type and speed are correct. The CPU should always have a Heat Sink and a
cooling fan attached to prevent overheating.
Note: Ensure that the CPU heat sink and the CPU top surface are in total contact to avoid CPU
overheating problem that would cause your system to hang or be unstable.
The height attaching the option CPU (PCP4-24, PCP4 C-20) including the heat sink.
70mm