my 256MB ADATA PC4000

2.85v vdimm = 275-277mhz
3.1v vdimm = 281-284mhz

have to wait for my prommy mach2 to get a cpu to 300+ fsb unfortunately none of my current boards cut it.. 4pca3+ has 3.3v vdimm but only 1.68v vcore lol