VIA EPIA CN Mini ITX PC

The VIA EPIA CN is a Mini ITX mini PC based on the VIA C7 processor.

Processor: VIA C7 @ 1 GHz (x86 w/PAE)

Chipset: VIA CN700 North Bridge, VIA VT8237R-series South Bridge

Graphics: Integrated C-Pro AGP with MPEG-2 Acceleration

Audio: VIA VT1618 8-channel AC'97 codec

Memory: 1 x 240-pin DDR2-533 (PC2-4200U DIMM (maximum of 1 GB)

Slots: 1 x PCI (broken out to 2 x PCI using riser card)

IDE: 2 x UltraDMA 133/100 controllers

LAN: VIA VT6103 10/100 Ethernet

TV Out: VIA VT1625 HDTV Encoder

Symptom or Problem Encountered
Machine powers down unexpectedly and/or is generally unstable. Out of spec values for voltage rails are shown In the PC Health Status screen of the BIOS.

Causes

 * Failing capacitors on the power supply board and/or a failing power brick

Solutions

 * Replace capacitors on the power supply board. May also need to replace the power brick.

Power Brick
This device came with a 19 V 4.74 A power brick. Barrel plug is 5.5 mm OD x 2.1 mm ID, and is center (tip) positive.

Power Supply Board


Power supply board is labeled "Migrus C5" and is located in the front left corner of the case.

Power brick
Any 5.5/2.1mm center (tip) positive power brick rated at 19 V and at least 4.74 A should work. The author of this page is using this Nobsound power adapter and it is working well.

Power Supply Board
There is a fair bit of wiggle room on and above the board, so you can fudge a little on the cap dimensions. In particular, the cap they used for EC12 was a very short "low profile" one which I was unable to find; however I was able to fit a "normal" sized 100 µF cap from my parts bin with no trouble.

Related Links

 * User's Manual