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Home▸ Forums▸ 68kMLA▸ Wanted: Advice on performing 68040 upgrade for Q605 — #5
Post #5 by bahkyp
Source Forum68kMLA
CategoryTroubleshooting
Post DateTue, 5 Jan 2010 - 05:31
Original URLhttps://68kmla.org/bb/threads/wanted-advice-on-performing-68040-upgrade-for-q605.19492/
Post
Just lever the the cpu with a thin knife, SLOWLY. I would suggest no more than 1mm or 1/32" before moving on to next side and repeating, the pins are only 3mm / 1/8". Ok you cant remove it flat but incrementally on a small angle is just fine.

The worst thing I've done with this method is hit the circuit board with the knife and injured one trace. Fixing that with a circuit pen was far harder than straightening a pin. The cpu pins are robust and handle a little straightening.

With insertion make sure they are straight and aligned before putting on any pressure. The cpu should sit down a little when ready to be placed in the socket.

After that you could swap resisitors for a better speed. http://homepage.mac.com/schrier/q605.html The 33 works for me, the 40 never did, even with a resistor from another quadra.

mp.ls