For the Neoware thin clients there is a handy document on the HP website which you can use to identify exactly what you have. I think the Capio must slightly predate this as the part number is not presented in the XX-XX-XX style format (but it is close). In my case I have a 620 and an 800. The circuit boards are identical, the difference being in the operating systems and supplied memory. The labels on the back of each read: Capio 620 CP4K-HD and Capio 800 CP4K-CB. These break down as:
CP Product Line Capio 4 Software (?) - Standard software H Platform (?) - actually CE.NET C Flash Capacity C = 32Mb B RAM Capacity B = 64Mb
CP Product Line Capio 4 Software (?) - actually 'standard' K Platform (?) - Actually XPE H Flash Capacity H = 192Mb D RAM Capacity D = 256Mb
The ones in my possession were manufactured in 2003.
The basic specs for the 620 are:
64MB (max 512MB)
1600 x 1200 32-bit colour
2 x USB1.1
Kybd & mouse
Dimensions H x W x D (mm) 240 x 35 x 210 (Excluding Stand)
For those to whom it matters here is some detail from Linux's /proc/cpuinfo
vendor_id : CyrixInstead cpu family : 5 model : 9 model name : Geode(TM) Integrated Processor by National Semi stepping : 2
Unlike a lot of other thin clients the Neoware Capio has an internal power supply. The mains lead has a "clover leaf" style connector rather than the more usual kettle style. If your Capio came without a lead these are easy to source. The power supply is fanless.
Both the Flash memory and the RAM in the Capio are easily replaceable.
Flash: The flash can either be a Disk-On-Chip (DOC) or a DiskOnModule (DOM). The latter interfaces via a 44-pin IDE connector. The 620 (pictured) is fitted with a 32Mb DOC. The 800 is fitted with a 192Mb DOM.
I have connected a CDROM drive to the IDE connector (using a 44-pin to 40-pin adaptor) and successfully booted both Tiny Core Linux and DSL. I've also run Tiny Core Linux 4.6.2 using a Compact Flash-to-IDE adaptor. Space is limited, but it should be possible to fit a Compact Flash to IDE adaptor under the metal cover close to the IDE connector. I don't know if it would be possible to shoe horn in a 2.5" disk drive.
RAM: As far as the RAM is concerned I haven't been able to locate an actual specification for what the Capio supports, but the 64MB module fitted is a 144-pin PC133 SODIMM (133MHz-CL3). I have successfully replaced this by various 128MB and 256MB SODIMMs. Also a 512MB SODIMM (Kingston KTM-TP133/512) worked well.
The board has a couple of soldered links - JP1 and JP2 - associated with the memory. The nearby silk-screened table reads:
JP1 JP2 X X 1.8V 266MHz O X 2.0V 300MHz O O 2.2V 333MHz
I haven't tried anything here.
CPU: Adjacent to the CPU is a 6-pin header whose jumpers are used to set the CPU clock rate. The nearby silk-screened table reads:
1-2 3-4 5-6 O X O 333MHz X O O 300MHz X X X 266MHz
Once again I haven't tried anything here.
Click here for a larger picture of the Capio circuit board.
Any comments? email me. Last update October 2012