Bought three of these. This is what I've learned so far:
There is a seller on eBay offering Lin-Lin brand name Tualatin adapters for socket 370 mainboards for about $10 after shipping. Using one of these, I have gotten a 1.4GHz Celeron Tualatin to run at the 103MHz bus setting in the BIOS, but anything higher will not POST. If you buy one of these, change the jumpers to match the "figure 2(Intel mainboard, celeron III)" setting and it should work flawlessly(except that the BIOS shows incorrect CPU speed, but WCPUID shows it correctly). Makes for a very cheap but adequate UT2004 server box.
These are also excellent for routers. I have one with a 800MHz Celeron running Freesco Linux as a file server, router, and print server on a 256MB CompactFlash card plugged into an IDE adapter.
As far as RAM, it seems to take anything low density(128Mbit or less) just fine, but it does not accept 256Mbit devices. 16x128Mbit for 256MByte stick works great.
If you buy one of these, before you even bother putting a processor in it, replace the CMOS battery. The manual says the battery is good for 10,000 hours max. with the system turned off.
The manufacturer offers zero support on these things. No drivers, no BIOS updates, nothing.
The Zalman CNPS3100-Plus fanless heatsink(or any copper Zalman sink), once trimmed down, works awesome for these boxes since the processor is in the direct airflow path.
Has anyone found floppy connectors with the proper pitch for this connector?
What about the second PCI slot?
Voltage margin module?