
A long-time customer sent me a note yesterday about his problems with his assistant's computer.
It all started with his suggestion that a faster computer might be a good thing - but the assistant didn't want the hassles of moving everything over from Windows XP to Vista. OK - so my customer phoned up his favourite vendor - an multi-national tier-1 distributor and asked for a machine with the "Upgrade" option of XP installation instead of Vista (and commented to me how this really was a complete oxymoron - asking and paying for an "upgrade" to an older operating system)
Time went by and the system didn't arrive. Phone calls and more time, and he finally cancelled the order.
At this point he decided to heed my advice that I've given freely for years now - put in as much RAM as possible/practical to get the most out of your hardware and operating system. In this case the old computer was from another Tier-1 supplier and should not have been a slouch - fast CPU and not bad disk, etc. - but it only had 2x256 DIMMS in it for a total of 512 Megs of RAM. This on a machine with a CPU in the 2+ GigaHertz range.
Now my rule of thumb for years has been "1 Meg of RAM for each MegaHertz of CPU speed" - which in this case meant something around 2+ Gigs of RAM. The machine has 4 RAM slots and the specs say it will take 512Meg DIMMS in each slot for a total of 2 Gigs. My friend went down to the local computer shop and purchased 2-512Meg DIMMS - quoting the machine model number and all.
Well, it turned out that the sales person had given him the wrong RAM - almost fit but was not really even close - was 184 pin (old style) when the machine really required 240 pin DDR2 style.
His comment in his e-mail to me was "I've never forgotten words of wisdom you gave me 20 years or more ago... and that is that people who sell computers don't make their living by using them... the comment related mostly to advice about software for business functions... but it's also true of hardware... they know the spiel, not necessarily the technology."
The upshot is that, now that the new RAM is in place (and he has replaced the older CD-ROM with a new DVD-burner) the machine is performing much better - and at minimal cost.
Read on for the rational behind putting more RAM in an older machine