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At 01:30 PM 9/12/96 EDT, you wrote: >Billy said > >------ >> One oddity I didn't mention. There's a shareware >> SYSINFO-like program out there called SYSCHK.EXE, which is widely >> known. It works pretty accurately on our Dell desktop machines. When >> I ran it on the 760ED, it rated the chip at 139-140mhz. I am >> wondering if it's a bad chip - running so fast that it overheats.. > >This wouldn't be the cpu chip itself but the clock (crystal >oscillator) could be running somewhat fast. This is easily >measured - you should mention this to IBM, have them look at >it too. Over the years I've sped up various DEC cpus - some >of those can go about 80% faster due to their conservative >design, others croak at just a few MHz increase and heat is >always a factor too. > >I think the likelihood of the crystal running fast is absolutely zero. These >speed rating programs tend to be very bogus, since they don't know how to >properly take all sorts of things into account. I remember that Norton's >initial sysinfo program was totally broken because Peter did not understand >about instruction alignment! Interesting. Someone called me and told me their new Pentuim 200 was running at 225Mhz because that's what Norton said it was... Unfortunately, there is no way it's a 225, and it is a very old copy pf Norton.