This system is an entry level enterprise server built in a 1U rack form factor based on the Sun Netra X1. At the time it was marketed as the lowest cost UNIX server on the market (under $1000). As such it was the lower cost cousin to the V120 and used an IDE drive interface instead of SCSI.
It uses standard PC hardware (with the exception of ECC RAM). All drives are ATA100, it uses an ATX PSU and standard 3 pin fans. Granted the PSU is specially built for 1U form factor but still....
With no extraneous hardware on board all configuration is done via the Serial port. Once plugged in the built in LOM (Lights Out Management) is instantly available. From here you can choose to boot or perform low level hardware tasks. As with most servers it also remembers the last power state. So if the power goes out, it will turn itself back on when power is restored.
Code Name: Flapjack-LiteCD500
Processor: 548MHz UltraSPARC IIe (64bit)
RAM: 1024MB 133MHz ECC SDRAM (2GB Max)
PATA: 1x 80 GB Seagate ATA100 (can support up to 137GB), 1x Slim CD-ROM, 1x 3.5" bay for expansion
Video: None (Management through LOM serial port
I/O: 2x Serial (RJ-45), 2x 10/100 Ethernet, 2x USB 1.0
Approximate Power Consumption: 51W PSU
Noise: Under 60dB (Sounds like 60 dB...)
Dimensions: H: 44mm W: 437.2mm L: 487.4mm (1U form factor)
OS: Debian 7.0 (Wheezy) installed. Can support Solaris 8-10
Model Release Date: March 18, 2002 @ 500MHz. Updated September 10, 2002 @ 550MHz or 650MHz
EOL: March 2006 Original Price: $995.00 US
Sun Adds Sub-$1,000 Server to Sun Fire Line
Sun Adds Power Punch to V100, 280R Servers
Sun Fire V100 Specifications
Sun OpenBoot PROM Quick Reference Card
Sun Fire V100 User's Guide