My two cents: If your memory modules are bad, your computer will freeze intermittently and you will have to restart. If you're not having any freezing problems, your memory modules are OK, or at least you have enough memory installed that the "bad" module is being bypassed. What does the "About this Mac" tell you about the memory installed? If it tells you you have a gig and a half (512x3) and you're not having freezing problems, your memory is definitely OK. Nate > SLarsonIH at aol.com wrote: > > Subject: [G4] Memory > > > > I just bought a QS for my mom, and I have a question about memory. How do I > > tell if the memory sticks are good or bad, for sure? The QS came with three > > 512MB sticks. They show up in ASP. One of the disks that came with the QS was > an > > Apple Hardware Test disk. I was curious what was on it, so I ran the test > > program. It says two of the sticks have errors. I ran the test numerous times > with > > one stick, in different slots, pairs in different slots, in different orders, > > etc. Same results. I then found and downloaded MemTest, an OSX program for > > testing ram and it says the same thing. I called the guy and he says the QS > > never gave him any problem. He's willing to buy me ram if that will make me > happy. > > I don't want him to waste his money if these tests don't really mean > > anything. A trusted Apple tech friend of hos said that the tests are not > reliable. So, > > outside of using the computer for months, is there any sure fire way to know > > ifthey are good or not? > > > > Thanks > > STeve > >