The HP t5710 I have was manufactured in January 2006.
In a similar way to the t5515 it looks like there are variants of the t5710 available. My one (product #EA784AA) comes with a Transmeta Crusoe 800MHz CPU. The HP "Quickspecs" data sheet mentions two other models fitted with a Transmeta Efficeon, 1.2 GHz CPU.
The motherboard fitted to the t5710 is the same as the one fitted to the t5515. However this one has the SODIMM and PCI sockets fitted.
ATI Radeon 7000M with 16 MB
of dedicated graphics memory
1280 x 1024 24-bit colour
4 x USB2.0
Dimensions H x W x D (mm) 55 x 205 x 195 without stand
230 x 100 x 195 with stand
Security Kensington Lock Slot
The embedded operating system is Windows XPe.
For those to whom it matters here is some detail from Linux's /proc/cpuinfo
vendor_id : Genuine TMx86 cpu family : 5 model : 4 model name : Transmeta(tm) Processor TM5700 stepping : 3
The unit requires a 12V supply. If yours came without one a unit can be easily sourced. I have bought suitable 12V 3A units on ebay that were advertised as being replacements for LCD displays. The coax plug is a standard 5.5mm/2.1mm fitting.
Flash: The Flash memory is provided by a DOM (Disk On Module) fitted to a standard 44-pin IDE connector. You can see this in the top left of the picture. (Apacer board)
RAM: The RAM is easily expandable - it is fitted in a SODIMM socket. Mine came fitted with a hynix PC2700S module. I successfully replaced this with an anonymous 512MB DDR400 SODIMM.
PCI: The PCI expansion slot is fitted to the motherboard.
Any comments? email me. Last update June 2012