I have done some mods to my Cisco PIX 506e firewall I picked up for free from my old employer.

First I upgraded the RAM for 32mb of PC-100 SDRAM to 256mb of PC-100 SDRAM. I then went ahead and upgraded the CPU from a 300mhz Celeron to a PIII 600mhz. Too bad I can't adjust multiplier.



The thing only had one 50mm fan cooling the tiny heat sink. The thing was hot and loud. I cut a hole in the top and put in a 120mm fan ontop of it. Thing now runs cool and quiet. It is no longer hot to the touch.