VersaLogic has modified one of its long-running single-board computers (SBCs) to operate fanlessly, using just eight Watts of power. The PC-104/Plus-based Cheetah EPM-32v runs Linux, targeting low-power embedded applications in medicine, avionics, or security, says the company.

(Click here for a larger view of VersaLogic's Cheetah EPM-32v)

VersaLogic's Cheetah, first introduced in April 2006 with a 1.6GHz Pentium M processor, is a two-module PC/104-Plus boardset. Its separate 3.8 x 3.6 inch processor and I/O boards provide two serial ports, two USB 2.0 ports, Ethernet, IDE, a parallel port, audio, and PS/2 keyboard/mouse support. The Cheetah also features support for both analog monitors and LVDS flat-panels, according to the company.

Earlier this year, VersaLogic revamped the Cheetah to comply with the European Union's RoHS directive, adopting lead-free solder, reformulated plastics, and other changes. The modified board, seen below left, was readily identifiable by its switch to a red circuit board. While the revised, 1.6GHz Cheetah had no functional changes from the 2006 original, it also became available in both standard- (0 to 60 deg. C) or extended-temperature (-40 to 85 deg. C) versions.

VersaLogic's Cheetah, in 1.6GHz Pentium (left) and fanless 1.0GHz Celeron M (right) versions
(Click to enlarge)
Now, the Cheetah has been tweaked again in a new EPM-32v variant, which adopts a 1.0GHz ULV (ultra low voltage) Celeron M processor. As a new photo (above right) shows, the device can now do without a fan, and it uses just eight Watts of power, claims VersaLogic.

As before, the SBC includes a CompactFlash socket, plus a PC/104-Plus interface that supports both ISA and PCI add-on modules. Standard pass-through connectors allow the board to be used above other PC/104 modules, the company adds.

Features and specifications listed by VersaLogic for the Cheetah EPM-32v include:

• Processor — 1.0GHz Celeron ULV processor
  
• Memory — Up to 1GB of 266MHz PC2100 RAM or 333MHz PC2700 DDR RAM
  
• Display — Supports analog displays up to 2048 x 1536, or LVDS displays up to 1024 x 768
  
• Networking — 10/100 Ethernet
  
• Other I/O:
  • 2 x USB 2.0
    
  • 1 x IDE (supports up to two devices)
    
  • 1 x RS232
    
  • 1 x RS232/422/485
    
  • Parallel interface, bi-directional/EPP/ECP/floppy mode compatible.
    
  • AC '97 audio, with stereo line in/out
    
  • PS/2 keyboard and mouse ports

• Expansion:
  • CompactFlash shot
    
  • PC/104 connector
    
  • PC/104-Plus connector

• Operating temperature — 0 to 60 deg. C
  
• Dimensions — Dual-board set, 3.55 x 3.775 inches, with 0.2-inch overhangs in designated connector areas

According to VersaLogic, the Cheetah EPM-32v is available now for $1,170. It is compatible with Linux, Windows XP, Windows XP Embedded, Windows CE, QNX, and DOS, according to the company.

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