CPU Shack: Cyrix/National GX/GXLV Motherboards

[CPUShack]

Here are some nice small form factor Cyrix/National GXLV Motherboards ( TECO TR3310 REV 1.3)
They are based on the Cyrix/National CS5530 Chipset.
They have humpers for 200/266MHz (very likely some undocumented setting too)
as well as voltages listed as 2.2/2.9V

THese boot (they have an 8M DiskOnChip), but not sure how to get to BIOS

They run off a simple 5V EXT power supply

$20 each

[CPUShack]

I can probably do a pair for $38