have an "old" PC with SIS 648 chip (previously 2x 512-PC2700-333-2,5) with this memory (2x 1GB-PC3200-400) slightly improved. Some applications / programs / operations go even faster, some minimal / a little faster and a few (the memory-intensive) much faster.
Everything as expected.
Note for those in which there are problems: Look at the list of unterstüzten chip, not every memory with each chip.