NEC POWERMATE CT 815 - RELEASE NOTES, Service And Reference Manual

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1-12 System Overview
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CD audio connector for a CD-ROM or DVD-ROM drive
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digital flat panel/TV Out (DFP/TV) header for an optional DFP/TV board
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front panel connectors for system lamps and USB port
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power connectors
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additional connectors, including Modem In (MDM), Auxiliary In (AUX), Wake-On LAN
(WOL), Wake-On Ring (WOR), case open, CPU fan.
For further information on the system board, see Section 4, “System Board.”
System Memory
The system supports up to 512 MB of high-speed memory in three DIMM sockets on the system
board. Supported are 168-pin, 133-MHz SDRAM modules in 64-, 128-, and 256-MB unbuffered
configurations.
The memory modules can be installed in one, two, or three sockets, can vary in size between
sockets, must meet or exceed the processor bus speed (in some cases), and can be single- and
double-sided DIMMs.
Diskette Drive
A single diskette drive is supported in the system. The installed 1.44-MB 3 1/2-inch diskette
drive is connected by a two connector ribbon cable. The diskette drive cable plugs directly into
the system board. There are no switches or jumpers that need to be set and the diskette drive is
terminated.
Diskette drive specifications are given in Section 9, “Specifications.”
Hard Drive
All systems ship with one internal 3 1/2-inch EIDE hard installed inside the system, under the
CD-ROM drive. Drives are available in 10-GB or higher Ultra DMA/66/100 models.
An Ultra DMA/66/100 cable connects the hard drive to the primary IDE channel on the system
board. The drive is connected as the master device on the primary channel.
Hard drive jumper settings are given in Section 2, “System Configuration.” The location of the
primary IDE connector on the system board is given in Section 4, “System Board.” Hard drive
specifications are given in Section 9, “Specifications.”
Power Supply
The 235-watt power supply is mounted inside the system unit. It supplies power to the system
board, option boards, diskette drive, hard drives, CD-ROM drive, DVD-ROM drive (if
installed), keyboard, mouse, and other internal options. A fan inside the power supply provides
system cooling.
Power supply connector locations on the system board are given in Section 4, “System Board.”
Power supply specifications are given in Section 9, “Specifications.”