I was looking around the net trying to find a cpu that might fit into the WSP and came across the varying flavors of Geode processors from National Semiconductor. The one in the WSP seems to be the Geode GXM based on older .35 micron technology.
Packaged in: 352-Terminal Ball Grid Array (BGA) or 320-Pin Staggered Pin Grid Array (SPGA) 0.35-micron four layer metal CMOS process Split rail design (3.3V I/O and 2.9V core)
32-Bit x86 Processor
Supports the MMX instruction set extension for the acceleration of multimedia applications
Speeds offered up to 266 MHz
16 KB unified L1 cache
National also lists a Geode processor, the GX1 with the following interesting specs:
352-Terminal Ball Grid Array (BGA) or
320-Pin Staggered Pin Grid Array (SPGA)
0.18-micron four layer metal CMOS process
Split rail design:
Available 1.6V, 1.8V, 2.0V, or 2.2V core
3.3V I/O interface
Speeds up to 333 MHz
Now I'm wondering if this chip would work in the WSP with a voltage adapter. Since it's built around a .18 micron process (two full die shrinks) I'd expect it should overclock extremely well, possibly to the 500 Mhz range depending on what kind of setting would be available on the WSP or voltage adapter itself. If anyone knows anything about this chip please post here. I might just buy one and try it out, it should at least let you run the WSP at 233 or so without a fan.