Summary: Over all it was a good bang for the buck, but I would perfered to stick with A-Data/Kingston/Corsair had they been in stock. If you're only gonna save a few bucks, just get another brand.
Pros: Works fine in PAIRS on Intel TY915 & is cheap. I prefer A-Data or Kingston, but ordered this because it was all that was in stock, it's cheap & works.
Cons: Installed memory modules on Intel TY915 (DELL Optiplex 320) and the BIOS would not recogonize the Crucial if paired with another brand. I had to remove all RAM and make sure Crucial were paired up, it was a pain, but none the less they worked. You get what you pay for, hopefully you will not had ...
Summary: It would be less frustrating if a software tool was available to test the memory's compatibility with the machine the new memory would be installed in.
Cons: My laptop's system will not register the memory any more than 448mbs. This is what it was before I replaced the existing 2 x 256 ram chips with the new 2 x 512 ram chips. The laptop is a Sony VAIO pcg-k33.
Summary: Crucial and Dell both claim that PC 2700 (333MHz) is backwards compatible with PC 2100 (266MHz) but the memory did not function in my Dell Inspiron 5100. Perhaps the memory was DOA, but since it's from Crucial I don't believe that.
Pros: It's Crucial, usually reliable, and considered high quality.
Cons: Either it was DOA, or this RAM is not compatible with the Dell Inspiron 5100, which Crucial claimed it would be.
Summary: Module worked for little over a week before causing utter chaos in Windows. Memtest 86+ says everything's fine, but Windows catastrophically fails in every way imaginable until the module is removed and replaced with the stock configuration. (Dell-supplied 128 + 256).
Pros: Worked well and fast for little more than a week, it may just be a defective module.
Cons: Caused BIOS errors when installed in DIMM B with a Dell factory module (Samsung 256MB PC2100 CL2.5) in DIMM A, swapping A for B resolved problem. It may have compatibility issues with this computer even though Crucial's selector claims it to be compatible.
Summary: Honestly, I'm not sure if it's bad information from HP, or bad memory. I bought 2 512mb modules to max out the memory on my 2004 HP Pavilion ze4805us laptop, which came with a paltry 256mb. There are 2 available slots, but the computer will not recognize the new memory.
Pros: Low price
Cons: Same as RAM specified by HP for this computer, but doesn't work
Summary: I find it hard to believe that other peoples computers showed such marked increases unless they were running on virtual memory, in which case ANY additional RAM will speed things up by a lot.
Pros: Inexpensive. That's it.
Cons: The memory is very slow. I have an Asus M3N laptop. My old configuration had me with a 512MB RAM chip and a 128 MB RAM chip for a total of 640MB. This Crucial RAM chip was to replace my 128MB chip thereby bringing me up to 1,024MB (1GB). The two chips (old 128 & new 512) have the same performance...