The 10ZiG 55xx is one of the smaller thin clients, similar in size to the Wyse Sx0 range. It is in fact a rebadged Clientron U720.
I haven't been able to track down when the 5500 range was launched, but a Clientron U720 datasheet was produced in March 2011 and the BIOS in my 55xx carries a similar date. A 10ZiG blog from March 2013 indicates that the 5500 series (suitable for "Task Oriented" roles) was still current then.
The basic specs are:
VIA Eden ULV
16000 x 1200 32-bit colour
4 x USB2.0
12V 3A (from label)
Dimensions W x H x D 36cm x 156cm x 121cm
According to data sheets I tracked down the 5500 series comes in a variety of configurations:
My particular model carried no specific model number other than a label bearing a generic 55xx marking. I found it to be fitted with 256MB of flash and to be running Windows CE. The firmware identified the product as "Windows Thin Client WTC-1000"
The supplied RAM (512MB) was faulty and I replaced it with a 1GB SO-DIMM
From VIA's datasheet on the VX855:
" For the first time, the VIA VX855 MSP offers full hardware acceleration of the widest variety of leading video standards including H.264, MPEG-2/4, and WMV9, allowing smooth playback of high bit-rate 1080p HD video. The advanced video decoding capabilities, when coupled with the media system processor's small physical size and a thermal design power (TDP) of a mere 2.3 watts, open up exciting opportunities for power efficient small form factor and mobile devices; especially the mini-notebook PC segment that will now be able to offer true 1080p HD video playback. "
The 55xx requires an external 12V power supply. Whilst the label on the side of the 55xx says "12V 3A" the unit only consumes the advertised 9W when running, so even a 12V 1A PSU should suffice. The plug is the standard 5.5mm/2.1mm fitting.
Linux cpuinfo reports:
|model name||:||VIA Eden Processor 1000MHz|
|Flags||:||fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge cmov pat clflush acpi mmx fxsr sse sse2 tm nx cpuid pni est tm2 xtpr rng rng_en ace ace_en ace2 ace2_en phe phe_en pmm pmm_en|
00:00.0 Host bridge: VIA Technologies, Inc. VX855/VX875 Host Bridge: Host Control (rev 03) 00:00.1 Host bridge: VIA Technologies, Inc. VX855/VX875 Error Reporting 00:00.2 Host bridge: VIA Technologies, Inc. VX855/VX875 Host Bus Control 00:00.3 Host bridge: VIA Technologies, Inc. VX855/VX875 DRAM Bus Control 00:00.4 Host bridge: VIA Technologies, Inc. VX855/VX875 Power Management Control 00:00.5 PIC: VIA Technologies, Inc. VX855/VX875 APIC and Central Traffic Control 00:00.6 Host bridge: VIA Technologies, Inc. VX855/VX875 Scratch Registers 00:00.7 Host bridge: VIA Technologies, Inc. VX855/VX875 North-South Module Interface Control 00:01.0 VGA compatible controller: VIA Technologies, Inc. VX855/VX875 Chrome 9 HCM Integrated Graphics 00:0f.0 IDE interface: VIA Technologies, Inc. VX855/VX875 EIDE Controller 00:10.0 USB controller: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller (rev a0) 00:10.1 USB controller: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller (rev a0) 00:10.2 USB controller: VIA Technologies, Inc. VT82xx/62xx UHCI USB 1.1 Controller (rev a0) 00:10.4 USB controller: VIA Technologies, Inc. USB 2.0 (rev 90) 00:11.0 ISA bridge: VIA Technologies, Inc. VX855/VX875 Bus Control and Power Management 00:11.7 Host bridge: VIA Technologies, Inc. VX8xx South-North Module Interface Control 00:13.0 PCI bridge: VIA Technologies, Inc. VX855/VX875/VX900 PCI to PCI Bridge 00:14.0 Audio device: VIA Technologies, Inc. VT8237A/VT8251 HDA Controller (rev 20) 01:03.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL-8110SC/8169SC Gigabit Ethernet (rev 10)
As you would expect with something this small there is zero room inside to add any extra hardware. Click on the photo for a larger version.
Flash: The 256MB Flash memory is a Disk-On-Module (DOM) plugged into a standard 44-pin IDE connector.
RAM: The RAM that came fitted was a (faulty) 512MB DDR2 667MHz SODIMM. I replaced it with a 1GB part. The maximum that can be fitted is 2GB.
Battery: The CMOS back-up battery is one of those that attaches with wires to a socket rather being socketed in its own right. (It lurks on the board under the IDE DOM). This ups the (admittedly low) replacement cost by a factor of 10 or more.
Any comments? email me. Added January 2021