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In message Thu, 8 Dec 94 18:16:02 PST, george@cs.nps.navy.mil (Robert George) writes: > Sorry, misprint. I _had_ a 750C, but I replaced it with a 755C. The 755C Well, that certainly explains all this misunderstanding. > has either a DX4-50 or a DX4-75. I purchased the DX4-75 which were rare > at the time. I was originally approached by IBM to purchase the DX4-50 > laptop, and they would just replace the chip with a DX4-75. Speaking of which, what's the current street price for DX4/75's, and what's IBM's price for the upgrade? When the TP755 was first introduced, I was quoted something ridiculous like $1300. > This implied to me that the chip is socketed, and that the motherboard > somehow autosenses which chip is socketed. One of the selling points of Not to open another can of worms :-), but I don't think the motherboard has to autosense the chip. The DX2/50 and DX4/75 both run at a bus speed of 25MHz so they look identical to the motherboard. _____________________________________________________________________ |\_____________________________________________________________________\ | | | | | John H. Kim "None of what you are seeing is actually happening." | | | jokim@mit.edu - disclaimer for TV movie 'Without Warning' | | | jokim@uni.uiuc.edu jokim@tuna.mit.edu does not work (yet) | \|_____________________________________________________________________|