• Shuttle AK31 V3.1 mobo (BIOS rev AK31S2EC)
• AMD 1.4GHz Tbird
• 1 - 256meg Kingmax PC 2400 Memory stick
• Visiontek GF3 (23.11 Det drivers)
• Maxtor 40G 7,200rpm HD
• Windows XP Professional

Let’s test few benchmarks of memory and overclocked speeds. This is picture of Kingmax memory running 150FSB, CAS2, 4-Way Interleave, default voltage.

The Kingmax at PC2400 is close to Rambus memory scores and certainly, dusting PC2100, PC1600 and PC133 scores. The Shuttle AK31 v3.1 maxes out at 166FSB in the BIOS so that is highest speed we could check the memory at. Will it do it?

To run memory at 166FSB, I did have to lower CAS rating from 2 to 2.5 and up the voltage to 2.70 to get it to run stable. Still, remarkable to be running DDR333 Speeds on ol' KT266A platform. As memory was entirely stable at 150FSB, I saw a few crash and burns at 166FSB. It would run almost all rock stable to add games and applications, yet 3DMark2001 would drop back to desktop. Not rather sure if this was a motherboard limitation or memory, but as I did have to modify CAS rating to 2.5 and increase voltage also, I would presume this is where Kingmax PC2400 tops out at. Still a valuable overclock for this memory with a 10% raise clock speed. Here's a shot of CPU ID showing system bus.