I actually started this almost a year ago as a CarPC/portable system At that time I planned on using an AMD Geode GX based 3.5" SBC, but it just didn't have the power. Later on I switched to a Commell LE-370, and then later looked at using a 3.5" PIII-based SBC before going back to the Pentium-M. Along the way I also broke my arm, which put everything even further behind.

Some might remember the 3.5" drive cases I built out of old Civil Defense Department Radiation Survey Meters. There are even two people lucky enough to have two I built before the cases became too expensive. Well, I had a few left, and one became the donor chassis for this project.

First, some specs.
Commell LE-370 3.5" Embedded Single Board Computer
Pentium-M 2GHz
512MB DDR400 running@DDR266 - BIOS issue, nothing real serious though
Seagate Momentus 5400.2 40GB 2.5" hard drive
Intel mini-PCI wireless 2200bg
dual 60mm Panaflo fans, one intake / one exhaust
external wireless antenna
vintage 1963 Civil Defense Radiation Survey Meter case
external 60 watt 12 volt power brick

First, sort of a stealthy shot, looks like it did in '63

Two shots showing the hidden antenna port



Side shot showing the ports: line out, serial, VGA, network, PS/2, and 12 volt in

Bottom of case with dual fans and clear rubber feeties so it can actually get fresh air

"Rear" USB port with Centrino sticker that covers an "oops" which was supposed be the second USB port

"Front" USB

Internals, tight fit.

And a size comparison, the whole thing is around 4.5" x 8.5" x 7" tall with the handle.

Yeah, no CD, but I can always use that as an excuse for another mod project.

Temps are surprisingly good, load temp is under 45C and the hard drive stays around 40C at the most. For as small as it is, I think it's pretty good.

Onboard video is sort of bland, but it gets the job done. This is no gamer, nor was it supposed to be one.

I could still add a power switch, currently turns on when you hit a key on the keyboard or plug in the power. I just haven't seen a switch I really like.

And because I know someone will complain. It's NOT A GEIGER COUNTER AND IT DIDN'T WORK WHEN I GOT IT!!!! This is/was a survey meter, made to check fallout levels after a nuke. The levels it reads are way above what a geiger counter can do. In fact, if this reads any level of radiation, chances are you're going to die soon after.

And the next project turned out to be peripherals for this PC.

First, a 15" touchscreen LCD. 3M Microtouch, found used but working great. Just had to fix the color.


Color is Krylon Fusion Yellow which is an amazing match to the case.


The back, need to come up with a stand or mounting setup. Might make an adapter plate so I can use a VESA standard mount.

Also have a keyboard and mouse in the works, but I doubt the keyboard will actually get used. I'll probably get myself a good keyboard in black instead. I do plan on using the mouse, had a spare Intellimouse Optical which has been a favorite of mine for a few years now.

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Because I only have two USB ports, it was pretty obvious I'd end up needing a hub at some point. Rather than using something everyone else can buy, and realizing that painting one wouldn't be good enough, I arrived at this.

That is another surplus Civil Defense item, the CDV-750 Dosimeter Charger. Originally, it was used to zero out a dosimeter, which was used to measure exposure to radiation. Now it's a 4 port USB 2.0 hub with character.

Simple enough to make. Pulled the guts from the charger, recycling a few pieces to keep the knob and cover attached, drill and file the ports, and add a notch in the back for the cable.

Now, some may ask why I have a permanently attached cable. First, the hub I bought had one, which was about 3 inches long. I could have made that work, but it would have been too damned short. While digging in my parts bin, I found a USB extension cable. Noticed that the design of the receptacle end could be used to secure the cable if I cut a notch in the back. Turned out pretty well, although I wish I could have made the notch a bit more shallow. Do to the design of the top of the case, that wasn't possible. So now the original cable from the hub plugs into the extension cable, which is secured in the notch.

I like it.

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And one more peripheral, the matching Intellimouse Optical

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And because I had another case left, and had some Via C3-based 3.5" Embedded boards, I present the RadNAS

Specs:
Advantech PCM-9373
512MB PC133
32MB Compact Flash - Boot
40 GB Seagate Momentus 5400.2 - Data
1x80mm thinline fan
And a PICO-PSU 120 for power

Basically a lower performance version of the Pentium-M box. Boots FreeNAS from the CF card, data on the 40GB. Works quite nice, and is small and fairly quiet. Enough rambling, you just want to see pics

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And some family portraits of my two original RadMeter drive cases, the Pentium-M RadPC, and the c3 RadNAS.