| Name | PCB size (mm) |
|---|---|
| WTX | 356 × 425 |
| AT | 350 × 305 |
| Baby-AT | 330 × 216 |
| BTX | 325 × 266 |
| ATX | 305 × 244 |
| EATX (Extended) | 305 × 330 |
| LPX | 330 × 229 |
| microBTX | 264 × 267 |
| NLX | 254 × 228 |
| Ultra ATX | 244 × 367 |
| microATX | 244 × 244 |
| DTX | 244 × 203 |
| FlexATX | 229 × 191 |
| Mini-DTX | 203 × 170 |
| EBX | 203 × 146 |
| microATX (min.) | 171 × 171 |
| Mini-ITX | 170 × 170 |
| EPIC (Express) | 165 × 115 |
| ESM | 149 × 71 |
| Nano-ITX | 120 × 120 |
| COM Express | 125 × 95 |
| ESMexpress | 125 × 95 |
| ETX/XTX | 114 × 95 |
| Pico-ITX | 100 × 72 |
| PC/104 (-Plus) | 96 × 90 |
| ESMini | 95 × 55 |
| Qseven | 70 × 70 |
| mobile-ITX | 60 × 60 |
| CoreExpress | 58 × 65 |
Pico-ITX is a PC motherboard form factor announced by VIA Technologies in January 2007 and demonstrated later the same year at CeBIT. The formfactor was transferred over to SFF-SIG in 2008. The Pico-ITX form factor specifications call for the board to be 10 × 7.2 cm (3.9 × 2.8 in), which is half the area of Nano-ITX. The processor can be a VIA C7, a VIA Eden V4, a VIA Nano or any other that uses VIA's NanoBGA2 technology for speeds up to 1.5 GHz, with 128KB L1 & L2 caches. It uses DDR2 400/533 SO-DIMM memory, with support for up to 1GB. Video is supplied via AGP by VIA's UniChrome Pro II GPU with built-in MPEG-2, 4, and WMV9 decoding acceleration. The BIOS is a 4 or 8 Mbit Award BIOS.[1][2][3]
Contents |
The first motherboard that was produced in this form factor is called EPIA PX10000G. It is 10 × 7.2 cm (3.9 × 2.8 in) and 10 layers deep. The operating temperature range is from 0°C to about 50°C. The operating humidity level (relative and non-condensing) can be from 0% to about 95%. It uses a 1 GHz VIA C7-M processor, a VIA VX700 chip set, and is RoHS compliant.
It has onboard VGA video-out, VIA VT6106S 10/100 8P8C Ethernet, UDMA 33/66/100/133 44-pin PATA (1x), and SATA (1x) I/O. DVI and LVDS video-out, USB 2.0, COM, PS/2 Mouse & Keyboard, and HD 5.1 channel audio (supplied by a VIA VT1708A chip) are supported through the usage of I/O pin headers and add-on modules/daughter cards.[2][3][4]
It has been demonstrated running Microsoft Windows XP and Windows Vista. Modern versions of major Linux distributions, including Fedora Core 6 and Ubuntu 7.10, will also run on it.[5]
This model is similar to the PX10000G, but uses the 500 MHz VIA Eden ULV CPU.
There are two versions of this model, the PX5000G, which has an active (fan-assisted) heatsink, and the PX5000EG, which has a passive (fanless) heatsink.
(Note: Either the VIA PX-O add-on module or 4 USB 2.0 I/O are supplied in retail packages.)
The VIA PX-O daughtercard supplies access to:
The VIA VT1625M daughtercard supplies access to:
The Serener PXFPIO (also labeled under VIA PX-DIO) is 109mm × 22mm in size and connects via a 120mm ribbon cable through a daughter card. This addon may require modification to the heatsink due to the size of the daughter card. It supplies access to:
The VIA PX-TC daughter card, compatible with the PX10000G only, is designed to enhance the multimedia capture and output. It supplies access to:
The second motherboard series in this form factor, the P700 series improves upon the PX10000G series by offering a Gigabit Ethernet (Using the VIA VT6122 chipset) or a 10/100 Ethernet adaptor (VIA VT6107) as a manufacturing option, integrating the power adaptor (allowing for direct +12V DC-In & enabling it to directly power SATA), and making the Ethernet & VGA ports optional via the P700-A daughter card.
Expanded functionality is offered via the following pin I/O:
The EPIA-P700-10L has a 1 GHz VIA C7 CPU.
The EPIA-P700-05LE has a 500 MHz VIA Eden ULV CPU and has a passive heatsink.
The P700 comes retail with the P700-A & P700-B daughter cards.[10]
The P700-A supplies:
The P700-B supplies:
Even though the form factor was introduced by VIA Technologies, there are also boards available based on Intel processors. Some have the CPU and the chipset directly on the Pico-ITX board. Other boards, like the Toradex Daisy, allow the addition of Nano COM Express modules.[13]
The Pico-ITXe specification adds on to the Pico-ITX formfactor by taking the EPIA-P700 and upgrading the chipset to a VX800, doubling the maximum RAM to 2 GB, allowing for 667/533 SO-DIMM RAM, upgrading the GPU to VIA's Chrome9 HC3, and adding support for SUMIT. Another notable addition is the expansion from 10 to 12 layers thickness.