If your system currently only uses PC 2100 it's probably CL 2.5 at the best. Most Crucial is CL 3.0 which at the higher speed rating should be fine. No reason to buy CL 2 tpe memory for that system. I just bought a 512 PC3200 Mushkin for $75 [the price seems to go down a buck each day]. It is CL2.5. I just happen to like Mushkin [this is their low price line]. Just make sure that whatever you buy is gauranteed for life and replacement for any reason.
first time posting here. for weeks now ive been thinking of adding more memory ram to my HP Pavilion 752n pc, which currently has 512mb and is a DDR PC2100, to full capacity(1024mb). not to long ago, HPs website had a link that took to Crucial's website as part of a promo in selling memory RAMs at a discount for HP PCs. in crucials memory configurator, it found one that was compatible for my pc(well it found 3, but im only interested in the 512mb). but lately, ive been searching in stores like Best Buy & Circuit City, and im surprised that both stores hardly sell any 512mb ddr pc2100-type memory ram. But as i look around in their stores(and in their websites), i noticed that they have ddr pc2700-type memory ram that claims to be compatible with pc2100 PCs. one of those is the kingston kvr333/512 512mb ddr pc2700 RAM, which is currently on sale at Best Buy for this week. i had originally thought of getting it at circuit city when it was on sale 2 weeks ago, but decided not to cause i wasnt sure.but now that it is on sale, i want to know from u experts out there, should i go for the kingston 512mb ddr pc2700 instead of the crucial 512mb ddr pc2100, especially since the price is better than the one that crucial recommended for my pc. are these memory rams really compatible with my pc2100 PC as they claim?