Replacement ?

We had a local computer technician in to fix our computer this morning (Monday). We had an infinite loop problem, which he fixed. While working on the machine he opened it up to ascertain if there were any loose boards or components inside, he realised when looking into the machine that the processor chip was a Celeron 2.4 GHz which our computer verifies when you look into the Systems Properties, on the outside of the case it has a small manufactures sticker proudly advertising that the computer contains a Pentium 4 processor to be precise a 2.8 GHz. Now I have to admit that we brought the computer from Harvey Norman in Oxley on 22/2/2004 I might add that the set was not cheap. A year later we had to take the computer back for a USB ports problem. This was fixed in a week and I was told that another motherboard was put in. The computer then was still under warranty so there was no payment to make also there was no paperwork for me to ascertain what work had been actually done. I got in touch with Harvey Norman 1/10/2007 and they verified that I did at one time take the computer in and a replacement motherboard was fitted. An explanation was offered that somebody could have stuck that particular Pentium sticker on the outside. the same sticker that was on it when we bought it, that was partly the reason why the computer was expensive in the first place. The moral of this story, check for yourself when you have anything repaired, especially computers.