Intel SYS7180VE CPU Installation, Main Memory Installation DIMM1/2, Host Bus frequency Cache size

CHAPTER 2 –Hardware Installations

2.2CPU Installation:

The SYS7180VE Industrial CPU Card supports a single Intel® P4 CeleronTM or Celeron DTM processor and Pentium 4TM 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:

P4 CeleronTM processor

Host Bus frequency	Cache size
400MHz	128KB
Pentium 4TM processor
Host Bus frequency	Cache size
400MHz / 533MHz	512KB
Celeron DTM processor
Host Bus frequency	Cache size
533MHz	256KB or 1M

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.

SYS7180VE User’s Manual 7

CHAPTER 2 –Hardware Installations

2.3Main Memory Installation: DIMM1/2

The SYS7180VE Industrial CPU Card supports two single-side or double-sided DDR266/333 unregistered, DIMM 184-pin sockets for a maximum total memory of 1GB. Using the non-ECC DDR SDRAM DIMMS.

The CPU card supports the following memory features:

•184-pin DIMMs with gold-plated contacts

•266MHz and 333MHz non-ECC DDR SDRAM

•Un-buffered single or double-sided DIMMs in the following sizes:

SDRAM

SYNCHRONOUS DRAM (SDRAM) improves memory performance through memory access that is synchronous with the memory clock. Burst transfer rates at x-1-1-1 timing can be achieved using SDRAM, while asynchronous memory subsystems are typically limited at x-2-2-2 transfer rates.

The CPU card supports single or double-sided DIMMs in the following sizes:

DIMM size	Non-ECC configuration
16MB	2Mbit x 64
32MB	4Mbit x 64
64MB	8Mbit x 64
128MB	16Mbit x 64
256MB	32Mbit x 64

Note: All memory components and DIMMs used with the SYS7180VE CPU card must

comply with the PC SDRAM Specification. These include: the PC SDRAM Specification *memory component specific), the PC Unbuffered DIMM Specification, and the PC Serial Presence Detect Specification.

8 SYS7180VE User’s Manual