IBM 343 manual Processor, Memory, PCI Riser Slots, Video, Scsi Controller

Processor

The server board accommodates one or two Pentium III processors up to 1-26 GHz with 512k cache in the FC-PGA2 package.

Memory

The system board contains six 168-pin DIMM slots each supporting 72-bit ECC (64-bit main memory plus ECC) registered SDRAM DIMMs (PC-133 compatible). You may install a minimum of 128 MB (64 MB x 2) and as much as 6 GB.

Note

Use DIMMs that have been tested for compatibility with the server board. Contact your sales representative or dealer for a current list of approved memory modules.

PCI Riser Slots

The server board has two PCI riser slots: a 5 V riser that supports 64-bit/33 MHz riser cards and a 3.3 V riser that supports 64-bit/66 MHz riser cards.

•Bus speed up to 66 MHz

•32 bit memory addressing

•5 V/3.3 V signaling environment

•Burst transfers of up to 512 Mbps

•8, 16, 32, or 64-bit data transfers

•Plug and Play ready

•Parity enabled

Video

The server board uses an ATI RAGE XL PCI graphics accelerator with 8 MB of video SDRAM that supports all standard IBM VGA modes. The embedded SVGA video subsystem supports:

•Pixel resolutions up to 1600 x 1200 under 2D and 1024 x 768 under 3D

•CRT and LCD monitors up to 100 Hz vertical refresh rate

The server board supports disabling of the onboard video through the BIOS setup menu or when a plug in video card is installed in any of the PCI slots.

SCSI Controller

The SCSI version of the server board includes an embedded Adaptec AIC-7899W controller providing dual Ultra160 Low Voltage Differential (LVD) SCSI channels.

The SCSI bus is terminated on the server board with active terminators that cannot be disabled. The onboard device must always be at one end of the bus. The device at the other end of the cable is terminated with the active terminator on the SCSI cable installed in the system.

Chassis Description 15