NEC PowerMate V486 Series Service Manual page 17

1-4 Technical Information
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memory – 32-bit (system also supports 36-bit), 70-nano second (ns) single-inline
memory modules (SIMMs)
8 megabytes (MB) of random access memory (RAM) in the desktop and
minitower systems (expandable to 64 MB)
16 MB in the desktop multimedia systems (expandable to 64 MB)
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cache
8 KB in the Intel486DX2
16 KB in the Intel486DX4
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optional 256-KB secondary cache module
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Trident 9440 (TGUI9440AGi Advanced GUI Accelerator)
supports 640 x 480 resolution with 16.8 million colors (24-bit true color), 800
x 600 with 64 K colors, 1024 x 768 with 256 colors, and 1280 x 1024 with 16
colors
1-MB video dynamic RAM (DRAM), expandable to 2 MB
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external input/output (I/O) connectors
parallel – one 25-pin connector
serial – two RS-232C ports; support asynchronous communication, up to
9600 bps, 9-pin connectors
VGA video monitor – supports standard, super, and high-resolution VGA
modes, 15-pin connector (D-shell)
keyboard – PS/2-compatible, 6-pin connector (mini DIN)
mouse – PS/2 compatible, 6-pin connector (mini DIN)
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internal drive connectors
IDE – dual IDE channels, one fast IDE and one standard; CD-ROM reader
and hard disk on separate channels; support for up to 10 MB/second 32-bit
transfers on PCI Bus; support for a total of four IDE devices; 40-pin connec-
tors
diskette drive – supports two diskette drives, 34-pin connector