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16 ISP2150 2U Rack Server Platform Product Guide
Add-in Board Slots
You can only add two PCI cards to this server. You must use the PCI slots on the riser card. Do
not use any expansion slots on the server board.
The server board has two full length standard PCI connectors on the riser card. PCI features:
• Bus speed up to 33 MHz
• 32 bit memory addressing
• 5 V signaling environment
• Burst transfers of up to 133 Mbps
• 8, 16, or 32 bit data transfers
• Plug and Play ready
• Parity enabled
Video
The onboard, integrated Cirrus Logic CL-GD5480 64 bit VGA chip contains an SVGA controller
that is fully compatible with these video standards: CGA, EGA, Hercules
†
Graphics, MDA LAN,
and VGA. The standard configuration comes with 2 MB of 10 ns onboard Synchronous Graphics
Memory (SGRAM). The video controller supports pixel resolutions of up to 1600 x 1200 and up to
16.7 Million colors.
The SVGA controller supports analog VGA monitors (single and multiple frequency, interlaced
and non-interlaced) with a maximum vertical retrace non—interlaced frequency of 100 Hz.
You cannot add video memory to the server board. Depending on the environment, the controller
displays up to 16.7 M colors in some video resolutions. It also provides hardware accelerated bit
block transfers (BITBLT) of data.
SCSI Controller
The embedded Adaptec AIC-7896 dual function SCSI controller provides both Ultra2 (LVDS)
wide and Ultra wide SCSI interfaces as two independent PCI functions.
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 end of the cable must
be terminated. LVDS devices generally do not have termination capabilities. Non-LVDS devices
generally are terminated through a jumper or resistor pack. If your device does not have a
termination jumper or resistor pack, you must add a terminator to the end of the cable. A
terminator is not supplied with your board. You must purchase one separately.
The hot-swap backplane in the ISP2150 system provides termination for the LVD SCSI bus.