phoenitydawn

October 10th, 2010

Dreaming of a perfect Mini-ITX-motherboard

Posted by Dunedan in Computer, Hardware

Since a while I’m searching for a Mini-ITX-motherboard for a small homeserver. This homeserver should contain six devices (1x SSD, 4x HDD, 1x optical) and should have enough power to provide decent performance with the four HDDs configured as software-RAID with encryption. An Atom-processor doesn’t fulfil this requirement, because it is simply too slow. My choice would be one of the 45W-Quadcore-Athlons from AMD (like the AMD Athlon II X4 615e), because these CPUs are powerful, but efficient. But these processors are only available for socket AM3.
If we sum up the requirements I’ll need a Mini-ITX-motherboard with socket AM3 and 6 SATA ports. But no manufacturer seems to have a motherboard with such a configuration. There exists a motherboard from Gigabyte with 6 SATA-ports, but this motherboard only provides a AM2+-socket and doesn’t support AM3 CPUs (there is also no BIOS-update planned to add this functionality). The few motherboards which exists with AM3 socket provide at best 4 SATA-ports and one IDE-port. I wonder why manufacturer nowadays still add an IDE-port instead of two additional SATA-ports.

My preferred (not yet existing) Mini-ITX-motherboard would look like:

mini-ITX

AMD 880G + SB850
(Radeon HD 4250 IGP)

internal connectors:
1x socket AM3 supporting CPUs up to 65W TDP
2x DDR3-1600/1333/1066 SO-DIMM up to 16GB
1x PCIe x16 (x16 Bandwidth)
1x mini-PCIe
6x USB 2.0
1x internal Displayport
6x SATA-II
1x CPU Fan
2x system fan
1x 24-pin ATX power connector
2x serial connectors
1x front panel connector

backplane:
1x Displayport
1x HDMI
6x audio jacks
1x S/PDIF Out
6x USB 2.0
2x RJ45 Gigabit-Ethernet
3x SMA connectors for WLAN/Bluetooth/... antennas

I don’t see any reason why such a motherboard shouldn’t be possible from technical point of view.
Does somebody know why the motherboard-manufacturers don’t sell motherboards with this features or is there already I motherboard which does fulfil my requirements (AM3-socket + 6 SATA-ports)?

May 27th, 2009

Eyetracking for better usability with multiple screens

Posted by Dunedan in Computer, Hardware, Linux, Programmieren

While at work I recognized an annoying problem with multipe screens: I often forget to change the focus of the windows to the screen I’m currently looking at. The result: In that cases I want to type in a window on screen A and all text go’s into a window on screen B. Very annoying.

But here is a possible solution: Because all screens have intregrated webcams, it would be possible to grab images from these webcams and use an eyetracking software to determinate at which screen I’m currently looking. With the help of the window manager the focused window could change accordingly and I would never type onto to wrong screen anymore.
But as usual, the problem is the missing implementation. I couldn’t find any eyetracking software for linux which is able to use v4l2-devices and I also don’t know if any window manager is capable of changing the focused window in that manner.

If you know a working solution for my problem or already implemented such eyetracking-stuff, just leave me a comment. :D

December 2nd, 2008

Webcams unter Linux

Posted by Dunedan in Computer, Hardware, Linux

Ich war die Tage auf Arbeit ziemlich enttäuscht. Sowohl Webcam des Notebooks, als auch Webcam des externen Monitors funktionierten unter Linux, ohne dass ich auch nur einen Finger rühren musste. Wo bleibt denn da der Spaß? ;D